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China supplier Cast Iron RV Series 90 Degree Small Worm Gearbox for Crusher with Hot selling

Product Description

Cast Iron RV Series 90 Degree Small Worm Gearbox for Crusher

NMRV 571-150 worm gear box with flange and electric motor
NMRV+NMRV Double Stage Arrangement Reduction Gear Box
RV Series Worm Gearbox
worm speed reducer
nmrv worm gear motor

RV Series
Including RV / NMRV / NRV.
Main Characteristic of RV Series Worm Gearbox
RV series worm gear reducer is a new-generation product developed by CHINAMFG on the basis of perfecting WJ series products with a compromise of advanced technology both at home and abroad.
1. High-quality aluminum alloy, light in weight and non-rusting.
2. Large in output torque.
3. Smooth running and low noise,durable in dreadful conditions.
4. High radiation efficiency.
5. Good-looking appearance, durable in service life and small volume.
6. Suitable for omnibearing installation.
Main Materials of RV Series Worm Gearbox
1. Housing: die-cast aluminum alloy(frame size: 571 to 090), cast iron(frame size: 110 to 150).
2. Worm: 20Crm, carbonization quencher heat treatment makes the surface hardness of worm gears up to 56-62 HRX, retain carbonization layer’s thickness between 0.3 and 0.5mm after precise grinding.
3. Worm Wheel: wearable stannum bronze alloy.

SPEED RATIO 7.5~100
OUTPUT TORQUE <1050NM
IN POWER 0.09-11KW
MOUNTING TYPE FOOT-MOUNTED FLANGE-MOUNTED

 

When working, great load capacity, stable running, low noise with  high efficiency.
  Gear Box’s Usage Field
1 Metallurgy       11 Agitator  
2 Mine       12 Rotary weeder  
3 Machine       13 Metallurgy   
4 Energy       14 Compressor
5 Transmission     15 Petroleum industry
6 Water Conserbancy     16 Air Compressor
7 Tomacco       17 Crusher  
8 Medical       18 Materials
9 Packing     19 Electronics  
10 Chemical industry     20 Textile indutry
…         …    
Power 0.06kw 0.09kw 0.12kw 0.18kw 0.25kw 0.37kw 0.55kw
0.75kw 1.1kw 1.5kw 2.2kw 3kw 4kw 5.5kw
7.5kw 11kw 15kw        
Torque 2.6N.m-3000N.m
Ratio 7.5-100, the double gearbox is  more
Color Blue, Silver or as customers’ need
Material Iron or Aluminium
Packing Carton with Plywood  Case or as clients’ requirement
Type RV571 RV030 RV040 RV050 RV063 RV075 RV090
Weight 0.7kg 1.3kg 2.3kg 3.5kg 6.2kg 9kg 13kg
Type RV110 RV130 RV150        
Weight 35kg 60kg 84kg        
Mounting Methods Foot Installation   Flange Installation
For various  mortor or double input/output shafts can be equipped

Product picture:

Structure:

Certificate:

Packing & Delivery:

Our company :
AOKMAN was founded in 1982, which has more than 36 years in R & D and manufacturing of gearboxes, gears, shaft, motor and spare parts.
We can offer the proper solution for uncountable applications. Our products are widely used in the ranges of metallurgical, steel, mining, pulp and paper, sugar and alcohol market and various other types of machines with a strong presence in the international market.
AOKMAN has become a reliable supplier, able to supply high quality gearboxes.With 36 years experience, we assure you the utmost reliability and security for both product and services.

Customer visiting:

FAQ:
1.Q:What kinds of gearbox can you produce for us?
A:Main products of our company: UDL series speed variator,RV series worm gear reducer, ATA series shaft mounted gearbox, X,B series gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than 1 hundred models and thousands of specifications
2.Q:Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
3.Q:What is your terms of payment ?
A: 30% Advance payment by T/T after signing the contract.70% before delivery
4.Q:What is your MOQ?
A: 1 Set

Welcome you contace me if you are interested in our product.
Our team will support any need you might have.

Application: Machinery, Industry
Function: Speed Changing, Speed Reduction
Layout: Orthogonal
Hardness: Hardened
Installation: Horizontal Type
Step: Single-Step
Customization:
Available

|

Customized Request

worm gearbox

Maintenance Tips for Prolonging the Life of a Worm Gearbox

Proper maintenance is essential to ensure the longevity and reliable performance of a worm gearbox. Here are some maintenance tips to consider:

  • Lubrication: Regularly check and replenish the lubricant in the gearbox. Use the recommended lubricant type and quantity specified by the manufacturer.
  • Lubrication Schedule: Follow a lubrication schedule based on the operating conditions and manufacturer recommendations. Regular lubrication prevents friction, reduces wear, and dissipates heat.
  • Temperature Monitoring: Keep an eye on the operating temperature of the gearbox. Excessive heat can degrade the lubricant and damage components.
  • Cleanliness: Keep the gearbox and surrounding area clean from debris and contaminants. Regularly inspect and clean the gearbox exterior.
  • Seal Inspection: Check for any leaks or damage to seals and gaskets. Replace them promptly to prevent lubricant leaks and contamination.
  • Alignment: Ensure proper alignment between the worm and worm wheel. Misalignment can lead to increased wear and reduced efficiency.
  • Torque Monitoring: Monitor the torque levels during operation. Excessive torque can cause overloading and premature wear.
  • Regular Inspections: Periodically inspect all components for signs of wear, damage, or unusual noise. Replace worn or damaged parts promptly.
  • Proper Usage: Operate the gearbox within its specified limits, including load, speed, and temperature. Avoid overloading or sudden changes in operating conditions.
  • Expert Maintenance: If major maintenance or repairs are needed, consult the manufacturer’s guidelines or seek the assistance of qualified technicians.

By following these maintenance tips and adhering to the manufacturer’s recommendations, you can extend the lifespan of your worm gearbox and ensure its optimal performance over time.

worm gearbox

How to Calculate the Efficiency of a Worm Gearbox

Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:

  • Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
  • Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
  • Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%

For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.

It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.

worm gearbox

What Industries Commonly Use Worm Reducers?

Worm reducers are versatile mechanical components that find applications in various industries due to their unique advantages and capabilities. Some of the industries that commonly use worm reducers include:

  • Material Handling: Worm reducers are widely used in material handling equipment such as conveyors, bucket elevators, and cranes to control movement and manage heavy loads.
  • Automotive: They are utilized in automotive manufacturing processes, assembly lines, and vehicle positioning systems.
  • Food and Beverage: Worm reducers are used in food processing and packaging machinery where hygiene and cleanliness are crucial.
  • Agriculture: Agricultural equipment like irrigation systems and tractors use worm reducers for controlling rotational motion.
  • Mining and Construction: Heavy-duty applications in mining equipment, excavators, and construction machinery benefit from the torque multiplication provided by worm reducers.
  • Energy: Wind turbines and solar tracking systems use worm reducers to convert low-speed, high-torque motion into rotational energy.
  • Textile: Textile machinery employs worm reducers for controlling speed and tension in weaving and spinning operations.
  • Packaging: Packaging equipment relies on worm reducers for precise movement and positioning of packaging materials.
  • Medical: Medical devices and equipment often utilize worm reducers for their accuracy and controlled motion.
  • Printing: Printing machines use worm reducers to regulate paper feed and ensure consistent printing quality.

Worm reducers’ ability to provide high torque output, compact design, and self-locking characteristics makes them suitable for applications requiring reliable and controlled motion across various industries.

China supplier Cast Iron RV Series 90 Degree Small Worm Gearbox for Crusher with Hot selling China supplier Cast Iron RV Series 90 Degree Small Worm Gearbox for Crusher with Hot selling
editor by CX 2023-09-13

China Professional Nmrv/Nrv Nmrv110 Worm Gear Speed Reduction Reducer Gearbox with high quality

Product Description

NMRV  REDUCTION WORM GEARBOX
The NMRV 110 angular worm gear motor is designed to increase torque while reducing rotational speed. The drive is equipped with a single-stage gearbox and an electric motor with a power of 0.55 – 7.5 kW. The torque on the output shaft is 163 – 767 N * m. Gear Ratio Range: 7.5 – 100.
The NMRV 110 unit has the same mounting dimensions as the SITI MU105 and Varvel SRT 110 gearmotors, so it can be used to replace them.
Materials parts:
Body – iron, flanges – iron, worm – steel CHINAMFG worm wheel – bronze. 
Type of lubricant: synthetic ISO VG 220. 
Weight: 35 kg.

Type designation scheme

NMRV – 110 – 40 – 35 – 1.5 – B6

  • NMRV – worm gear motor
  • 110 – size (center distance, mm)
  • 40 – gear ratio
  • 35 – output shaft rotation speed, rpm
  • 1,5 – electric motor power, kW
  • B6 – mounting position

 

NMRV 110 gearbox performance

i n 1 = 2800 rpm n 1 = 1400 rpm n 1 = 900, rpm
n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%		 n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%		 n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%
7.5 373 391 16.60 92 187 532 11.60 90 120 637  9.10 88
10 280 424 13.50 92 140  571 9.30 90 90 672  7.20 87
15 187 423  9.30 89 93  565 6.40  86 60 669  5.00 84
20 140 498  8.30 88 70  649 5.60  85 45 748  4.30 82
25 112 453  5.90 90 56  580 4.00  85 36 674  3.10 82
30 93 349  4.00 85 47  553  3.40  80 30 663  2.70 77
40 70 554  4.90 83 35  681  3.20  78 23 809  2.60 75
50 56 531  3.80 82 28  657  2.50  77 18 746  1.90 74
60 47 428  2.70 78 23  546  1.80  73 15 615  1.40 69
80 35 445  2.20 74 18  549  1.50  68 11 640  1.10 67
100 28 394  1.70 68 14  473  1.10  63 9 557  0.89 59
  • n1 – rotational speed el. engine;
  • n2 – revolutions on the output shaft;
  • T 2M – torque on the output shaft;
  • P is the maximum allowable engine power;
  • RD – efficiency

GEARBOX FEATURE

1.Good quality,long life time,low noise.
2.Compact,convenient.
3.High efficiency,big torque.

 

Overall and mounting dimensions NMRV 110

NMRV110 gear motor  has a wide range of gear ratios.
Gear ratios: 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .

Output flange to NMRV 110 gearbox

Geared NMRV110 can be supplied with unilateral or bilateral output shaft. 
The gearbox comes standard with a hollow output shaft

A torque arm is an additional option to the gearbox.

  Model  NMRV SERIES
  Single Stage  RV25-RV150
  Ratio  7.5-100
  Input Power  0.06KW-15KW
  Output Speed  14-280rpm
  Output Torque   5-1800Nm
Core parts  worm wheel,worm shaft
 Core parts material      worm shaft:20 Cr Mn Ti,worm wheel:Nodular cast iron interal,9-4 copper external
  Lubrication   RV30-90:synthetic oil, RV110-150:GN460-W mineral oil
 Bearings  C&U

 
 
 

Application: Motor, Motorcycle, Machinery, Agricultural Machinery, Industry
Hardness: Hardened
Installation: Any Angle
Gear Shape: Worm Gear
Step: Single-Step
Type: Worm and Wormwheel
Samples:
US$ 20/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

worm gearbox

Maintenance Tips for Prolonging the Life of a Worm Gearbox

Proper maintenance is essential to ensure the longevity and reliable performance of a worm gearbox. Here are some maintenance tips to consider:

  • Lubrication: Regularly check and replenish the lubricant in the gearbox. Use the recommended lubricant type and quantity specified by the manufacturer.
  • Lubrication Schedule: Follow a lubrication schedule based on the operating conditions and manufacturer recommendations. Regular lubrication prevents friction, reduces wear, and dissipates heat.
  • Temperature Monitoring: Keep an eye on the operating temperature of the gearbox. Excessive heat can degrade the lubricant and damage components.
  • Cleanliness: Keep the gearbox and surrounding area clean from debris and contaminants. Regularly inspect and clean the gearbox exterior.
  • Seal Inspection: Check for any leaks or damage to seals and gaskets. Replace them promptly to prevent lubricant leaks and contamination.
  • Alignment: Ensure proper alignment between the worm and worm wheel. Misalignment can lead to increased wear and reduced efficiency.
  • Torque Monitoring: Monitor the torque levels during operation. Excessive torque can cause overloading and premature wear.
  • Regular Inspections: Periodically inspect all components for signs of wear, damage, or unusual noise. Replace worn or damaged parts promptly.
  • Proper Usage: Operate the gearbox within its specified limits, including load, speed, and temperature. Avoid overloading or sudden changes in operating conditions.
  • Expert Maintenance: If major maintenance or repairs are needed, consult the manufacturer’s guidelines or seek the assistance of qualified technicians.

By following these maintenance tips and adhering to the manufacturer’s recommendations, you can extend the lifespan of your worm gearbox and ensure its optimal performance over time.

worm gearbox

How to Calculate the Efficiency of a Worm Gearbox

Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:

  • Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
  • Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
  • Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%

For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.

It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China Professional Nmrv/Nrv Nmrv110 Worm Gear Speed Reduction Reducer Gearbox with high quality China Professional Nmrv/Nrv Nmrv110 Worm Gear Speed Reduction Reducer Gearbox with high quality
editor by CX 2023-09-13

China manufacturer Chinese Agricultural Tiller Manual Tillers and Cultivators wholesaler

Product Description

Product Description

This series power tiller can be equipped with lamp, water pump, ridge, sprayer, trailer, furrow plough, seeder, fertilizer distributor. etc. Well perform between mountain and hilly farmland, dry and paddy field, orchard, vegetable greenhouse, potato land, corn land and CHINAMFG land, sand land etc.

 

Parameters of Power Tiller

 

GASOLINE MODEL
Item 170 177 190
Engine 7hp 9hp 12hp
Transmission type Gear drive/belt drive
Start model Manual/electric starter
Working width 500mm ≥960mm 1050-1350mm
Working depth ≥100mm 200mm 200mm
Size of wheel 400-8/350-6
Adjustment of handle bar 360 degree horizon and 45 degree vertical
Fuel consumption ≤10kh/ha
Fuel tank 5L
Weight(KG) 120 132 150
Working efficiency o.1-0.2acre/h o.1-0.2acre/h 0.3-0.4acre/h
Working speed >0.3m/s
Package size 79*45.5*86cm 98*57*81cm 98*57*81cm
DIESEL MODEL
Item 173 178 186
Engine 7hp 9hp 12hp
Transmission type Gear drive
Start model Manual/electric starter
Working width 500mm ≥960mm 1050-1350mm
Working depth ≥100mm 200mm 200mm
Size of wheel 400-8/350-6
Adjustment of handle bar 360 degree horizon and 45 degree vertical
Fuel consumption ≤10kh/ha
Fuel tank 5L
Weight(KG) 164kg 178kg 182kg
Working efficiency o.1-0.2acre/h o.1-0.2acre/h 0.3-0.4acre/h
Working speed >0.3m/s
Package size 79*45.5*86cm 102*57*81cm 102*57*81cm

 

1.7hp vertical type gasoline engine is little to control.

2.Better small machine could be guarantee the farm worker in some time.

3.Its advantage is fit for old man,woman to finish tilling fields.

4.Special diesel engine must need special transmission to match each other.so the gearbox of tiller is our patent solely.

5.Two wheels tractors be supplied from 4.85KW ( 6hp) to 14.70kw (20hp)

6.Features: Compact,Agile,Light,Reliable,Convenience,High Quality.

7.Suitable for paddy fields,upland plains,mountain and hilly areas.and for plough,rotary tillage,sow,threshing ,suction and so on.

8.Equipped with lightnings for driving at night.

9.Can be used as a stationary power source for drainage and irrigation.

10.With quick coupling,easy to change farming implements. Cultivator,mower,trailer,water pump,power tiller,snow blower,rotary plough,etc.

11. Different product colors is optional, to adapt to different market

Packaging & Shipping

 

 

After Sales Service

FAQ

1.Q:Are you a factory or trading company?
     A:Yes, we are a factory, and our factory is located in ZheJiang China. Nearly HangZhou port.

2.Q:How about the quality control in your factory?
       A:Full as people are always paying great attention to the quality controlling from the beginning to the end. With more than 10 years experience     in this file, each product will be tested 1 by 1 before packing, our product has passed CE GS etc. 

3. Q: Is it all right to make customer’s own brand name?
      A:Yes,we can accept OEM, also can add your logo on it.

4. Q:What is the payment term you can accept?
      A:Usually we can accept  T/T,western union and other payment term by negotiation.   
   
5. Q:Can I get 1 sample?
      A:Sure you can,and you need to pay for sample charge which will be returned after the mass order signed.

Contact

 

 

After-sales Service: Video Technical Support, Online Support, No Overse
Type: Rotary Tiller
Application Field: Agriculture
Farming Policy: Bed Planting Machinery
Power Source: Diesel
Operation: Soil Preparation Machinery, Fixed Operation
Samples:
US$ 205/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

greenhouse gearbox

Factors to Consider When Selecting a Greenhouse Gearbox

Choosing the right greenhouse gearbox for your setup is crucial to ensure optimal performance and functionality. Here are the key factors to consider:

  • Load Capacity: Evaluate the weight and resistance of the louvers or other components the gearbox will control. Ensure the gearbox can handle the load without straining or wearing out.
  • Gearbox Ratio: Select a gearbox with the appropriate ratio to achieve the desired louver movement based on the motor’s input. The ratio determines how much the louver will open or close per motor rotation.
  • Speed Requirements: Consider the speed at which you need the ventilation louvers to open or close. Choose a gearbox that can provide the necessary speed while maintaining precision.
  • Automation Compatibility: Determine whether the gearbox can be easily integrated into your greenhouse’s automation system. Compatibility with sensors, controllers, and other automation components is essential for efficient operation.
  • Accuracy and Precision: Look for a gearbox that offers accurate and precise position control. This ensures that the louvers can be adjusted to the exact desired position for optimal ventilation control.
  • Environmental Conditions: Consider the environmental conditions within the greenhouse, including temperature and humidity. Choose a gearbox that can withstand these conditions without compromising performance or durability.
  • Installation and Maintenance: Evaluate the ease of installation and maintenance of the gearbox. Access for maintenance and the availability of replacement parts are important considerations.
  • Customization: Determine if the gearbox can be customized to suit the specific layout and requirements of your greenhouse. Customization options allow for a tailored solution that fits your needs.
  • Budget: Compare the cost of the gearbox with its features and capabilities. Choose a gearbox that provides the best value for your budget while meeting your requirements.

By carefully considering these factors, you can select the right greenhouse gearbox that will enhance the efficiency and effectiveness of your greenhouse ventilation and shading systems.

greenhouse gearbox

Examples of Greenhouses Using Gearbox Technology

Various greenhouses around the world have embraced gearbox technology to enhance their operations and achieve better energy efficiency:

  • Almeria Greenhouses, Spain: Almeria is known for its vast network of high-tech greenhouses that use advanced gearbox-controlled ventilation and shading systems. These systems ensure optimal growing conditions while conserving energy.
  • Netherlands Greenhouses: The Netherlands is a pioneer in greenhouse technology. Many Dutch greenhouses utilize gearbox-driven systems for ventilation, temperature control, and shading. These systems enable year-round cultivation and reduce energy consumption.
  • Gotham Greens, USA: This urban greenhouse company uses gearbox technology to control automated systems that adjust lighting, temperature, and irrigation. The precise control offered by gearboxes helps optimize plant growth and minimize resource usage.
  • Tomita Farm, Japan: Located in Tokyo, this technologically advanced greenhouse utilizes gearboxes to regulate ventilation, cooling, and heating systems. The gearboxes enable the greenhouse to maintain stable conditions in the face of changing external temperatures.
  • Emirates Hydroponics Farms, UAE: In the arid desert environment of the UAE, greenhouses rely on gearbox-controlled irrigation systems to provide water-efficient cultivation. Gearboxes play a crucial role in managing water distribution and usage.

These examples showcase how greenhouse gearbox technology is used globally to optimize growing environments, conserve resources, and contribute to sustainable agricultural practices.

greenhouse gearbox

Industries Utilizing Greenhouse Gearboxes for Controlled Environments

Greenhouse gearboxes find extensive applications in various industries that require controlled environments for optimal plant growth and productivity:

  • Agriculture and Horticulture: Greenhouses are commonly used for cultivating crops, flowers, and ornamental plants. Gearboxes are essential for automating ventilation, shading, and irrigation systems, enabling precise control over growing conditions.
  • Research and Experimentation: Research institutions and educational facilities utilize greenhouses to study plant physiology, genetics, and growth under specific conditions. Gearboxes assist in creating controlled environments for conducting experiments and analyzing plant responses.
  • Food Production: The agriculture industry employs greenhouses to grow vegetables, herbs, and fruits year-round. Gearboxes help optimize temperature, humidity, and light levels, contributing to higher yields and faster growth rates.
  • Floriculture: Greenhouses are crucial for producing flowers and floral arrangements. Gearboxes enable automated processes that ensure consistent quality and aesthetics in floral products.
  • Nurseries: Plant nurseries use greenhouses to propagate and grow young plants before transplanting them to outdoor settings. Gearboxes aid in maintaining ideal conditions for the healthy development of seedlings.
  • Pharmaceuticals: Pharmaceutical companies may use controlled environments to cultivate medicinal plants for research and production. Gearboxes assist in creating the necessary conditions for optimal plant growth and active compound development.

Overall, greenhouse gearboxes play a pivotal role in supporting industries that rely on controlled environments to achieve specific plant-related goals and outcomes.

China manufacturer Chinese Agricultural Tiller Manual Tillers and Cultivators wholesaler China manufacturer Chinese Agricultural Tiller Manual Tillers and Cultivators wholesaler
editor by CX 2023-09-13

China Custom Direct Supply RV Transmission Worm Gear Box with Good Wearability gearbox and motor

Product Description

 

Product Description

Main Materials:
1)housing:aluminium alloy ADC12(size 571-090); die cast iron HT200(size 110-150);
2)Worm:20Cr, ZI Involute profile; carbonize&quencher heat treatment make gear surface hardness up to 56-62 HRC; After precision grinding, carburization layer’s thickness between 0.3-0.5mm.
3)Worm Wheel:wearable stannum alloy CuSn10-1

Detailed Photos

Combination Options:
Input:with input shaft, With square flange,With IEC standard input flange
Output:with torque arm, output flange, single output shaft, double output shaft, plastic cover
Worm reducers are available with diffferent combinations: NMRV+NMRV, NMRV+NRV, NMRV+PC, NMRV+UDL, NMRV+MOTORS

Exploded View:

Product Parameters

 
Old Model     		   New Model     Ratio     Center Distance  Power Input Dia.  Output Dia.    Output Torque Weight
RV571     7.5~100   25mm   0.06KW~0.12KW  Φ9 Φ11 21N.m  0.7kgs
RV030 RW030 7.5~100 30mm   0.06KW~0.25KW Φ9(Φ11) Φ14 45N.m  1.2kgs
RV040 RW040 7.5~100 40mm   0.09KW~0.55KW Φ9(Φ11,Φ14) Φ18(Φ19) 84N.m  2.3kgs
RV050 RW050 7.5~100 50mm   0.12KW~1.5KW Φ11(Φ14,Φ19) Φ25(Φ24) 160N.m  3.5kgs
RV063 RW063 7.5~100 63mm   0.18KW~2.2KW Φ14(Φ19,Φ24) Φ25(Φ28) 230N.m  6.2kgs
RV075 RW075 7.5~100 75mm   0.25KW~4.0KW Φ14(Φ19,Φ24,Φ28)  Φ28(Φ35) 410N.m  9.0kgs
RV090 RW090 7.5~100 90mm   0.37KW~4.0KW Φ19(Φ24,Φ28) Φ35(Φ38) 725N.m  13.0kgs
RV110 RW110 7.5~100 110mm   0.55KW~7.5KW Φ19(Φ24,Φ28,Φ38)   Φ42 1050N.m  35.0kgs
RV130 RW130 7.5~100 130mm   0.75KW~7.5KW Φ24(Φ28,Φ38) Φ45 1550N.m  48.0kgs
RV150 RW150 7.5~100 150mm     2.2KW~15KW Φ28(Φ38,Φ42) Φ50   84.0kgs

GMRV Outline Dimension:

GMRV A B C C1 D(H8) E(h8) F G G1 H H1 I M N O P Q R S T BL β b t V  
030 80 97 54 44 14 55 32 56 63 65 29 55 40 57 30 75 44 6.5 21 5.5 M6*10(n=4) 0° 5 16.3 27
040 100 121.5 70 60 18(19) 60 43 71 78 75 36.5 70 50 71.5 40 87 55 6.5 26 6.5 M6*10(n=4) 45° 6 20.8(21.8) 35
050 120 144 80 70 25(24) 70 49 85 92 85 43.5 80 60 84 50 100 64 8.5 30 7 M8*12(n=4) 45° 8 28.3(27.3) 40
063 144 174 100 85 25(28) 80 67 103 112 95 53 95 72 102 63 110 80 8.5 36 8 M8*12(n=8) 45° 8 28.3(31.3) 50
075 172 205 120 90 28(35) 95 72 112 120 115 57 112.5 86 119 75 140 93 11 40 10 M8*14(n=8) 45° 8(10) 31.3(38.3) 60
090 206 238 140 100 35(38) 110 74 130 140 130 67 129.5 103 135 90 160 102 13 45 11 M10*16(n=8) 45° 10 38.3(41.3) 70
110 255 295 170 115 42 130 – 144 155 165 74 160 127.5 167.5 110 200 125 14 50 14 M10*18(n=8) 45° 12 45.3 85
130 293 335 200 120 45 180 – 155 170 215 81 179 146.5 187.5 130 250 140 16 60 15 M12*20(n=8) 45° 14 48.8 100
150 340 400 240 145 50 180 – 185 200 215 96 210 170 230 150 250 180 18 72.5 18 M12*22(n=8) 45° 14 53.8  120  

Company Profile

About CHINAMFG Transmission:
We are a professional reducer manufacturer located in HangZhou, ZHangZhoug province.
Our leading products is  full range of RV571-150 worm reducers , also supplied GKM hypoid helical gearbox, GRC inline helical gearbox, PC units, UDL Variators and AC Motors, G3 helical gear motor.
Products are widely used for applications such as: foodstuffs, ceramics, packing, chemicals, pharmacy, plastics, paper-making, construction machinery, metallurgic mine, environmental protection engineering, and all kinds of automatic lines, and assembly lines.
With fast delivery, superior after-sales service, advanced producing facility, our products sell well  both at home and abroad. We have exported our reducers to Southeast Asia, Eastern Europe and Middle East and so on.Our aim is to develop and innovate on basis of high quality, and create a good reputation for reducers.

 Packing information:Plastic Bags+Cartons+Wooden Cases , or on request
We participate Germany Hannver Exhibition-ZheJiang PTC Fair-Turkey Win Eurasia 

Logistics

After Sales Service

1.Maintenance Time and Warranty:Within 1 year after receiving goods.
2.Other Service: Including modeling selection guide, installation guide, and problem resolution guide, etc.

FAQ

1.Q:Can you make as per customer drawing?
   A: Yes, we offer customized service for customers accordingly. We can use customer’s nameplate for gearboxes.
2.Q:What is your terms of payment ?
   A: 30% deposit before production,balance T/T before delivery.
3.Q:Are you a trading company or manufacturer?
   A:We are a manufacurer with advanced equipment and experienced workers.
4.Q:What’s your production capacity?
   A:8000-9000 PCS/MONTH
5.Q:Free sample is available or not?
   A:Yes, we can supply free sample if customer agree to pay for the courier cost
6.Q:Do you have any certificate?
   A:Yes, we have CE certificate and SGS certificate report.

Contact information:
Ms Lingel Pan
For any questions just feel free ton contact me. Many thanks for your kind attention to our company!

Application: Motor, Machinery, Marine, Agricultural Machinery, Industry
Function: Distribution Power, Change Drive Torque, Speed Changing, Speed Reduction
Layout: Right Angle
Hardness: Hardened Tooth Surface
Installation: Horizontal Type
Step: Double-Step
Samples:
US$ 10/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

worm gearbox

Maintenance Tips for Prolonging the Life of a Worm Gearbox

Proper maintenance is essential to ensure the longevity and reliable performance of a worm gearbox. Here are some maintenance tips to consider:

  • Lubrication: Regularly check and replenish the lubricant in the gearbox. Use the recommended lubricant type and quantity specified by the manufacturer.
  • Lubrication Schedule: Follow a lubrication schedule based on the operating conditions and manufacturer recommendations. Regular lubrication prevents friction, reduces wear, and dissipates heat.
  • Temperature Monitoring: Keep an eye on the operating temperature of the gearbox. Excessive heat can degrade the lubricant and damage components.
  • Cleanliness: Keep the gearbox and surrounding area clean from debris and contaminants. Regularly inspect and clean the gearbox exterior.
  • Seal Inspection: Check for any leaks or damage to seals and gaskets. Replace them promptly to prevent lubricant leaks and contamination.
  • Alignment: Ensure proper alignment between the worm and worm wheel. Misalignment can lead to increased wear and reduced efficiency.
  • Torque Monitoring: Monitor the torque levels during operation. Excessive torque can cause overloading and premature wear.
  • Regular Inspections: Periodically inspect all components for signs of wear, damage, or unusual noise. Replace worn or damaged parts promptly.
  • Proper Usage: Operate the gearbox within its specified limits, including load, speed, and temperature. Avoid overloading or sudden changes in operating conditions.
  • Expert Maintenance: If major maintenance or repairs are needed, consult the manufacturer’s guidelines or seek the assistance of qualified technicians.

By following these maintenance tips and adhering to the manufacturer’s recommendations, you can extend the lifespan of your worm gearbox and ensure its optimal performance over time.

worm gearbox

Materials Used for Worm Gears

Worm gears are manufactured using a variety of materials to meet different application requirements. Some commonly used materials for worm gears include:

  • Steel: Steel is a popular choice for worm gears due to its strength, durability, and wear resistance. It can handle heavy loads and is often used in industrial applications.
  • Bronze: Bronze offers good lubricity and is commonly used for the worm gear (worm) component. It provides effective wear resistance and works well in applications where quiet operation is essential.
  • Cast Iron: Cast iron is known for its high strength and durability. It’s often used for worm gears in applications where shock loads or heavy-duty conditions are expected.
  • Aluminum: Aluminum worm gears are lightweight and corrosion-resistant, making them suitable for applications where weight reduction is important.
  • Plastic: Some worm gears are made from plastic materials such as nylon or acetal. These materials are often chosen for their self-lubricating properties and quiet operation.
  • Composite Materials: Composite materials can offer a combination of properties, such as lightweight construction and corrosion resistance. They can be suitable for specific applications.

The choice of material depends on factors such as the application’s load, speed, operating environment, and required performance characteristics. It’s important to consider these factors when selecting the appropriate material for worm gears to ensure optimal performance and longevity.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China Custom Direct Supply RV Transmission Worm Gear Box with Good Wearability gearbox and motor China Custom Direct Supply RV Transmission Worm Gear Box with Good Wearability gearbox and motor
editor by CX 2023-09-13

China high quality Right-Angle Worm Gearbox Vf Series manufacturer

Product Description

RV series Characteristics

  • RV – Sizes:–150
  • Input Options: with input shaft, With Square flange,With Input Flange
  • Input Power 0.06 to 11 kW
  • RV-Size from 030 to 105 in die-cast aluminium alloy budy and over 110 in cast iron
  • Ratios between 5 and 100
  • Max torque 1550 N.m and admissible output radial loads max 8771 N
  • Aluminium units are supplied complete with synthetic oil and allow for universal mounting positions, with no need to modify lubricant quantity
  • Worm wheel: Copper (KK Cu). 
  • Loading capacity in accordance with: ISO 9001:2015/GB/T 19001-2016
  • Size 030 and over are painted with RAL 5571 blue
  • Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRVpower+NMRV, JWB+NMRV
  • NMRV, NRV+VS,NMRV+AS,NMRV+VS,NMRV+F
  • Options: torque arm, output flange, viton oil seals, low/high temperature oil, filling/drain/breather/level plug,Small gap

Basic models can be applied to a wide range of power reduction ratios from 5 to 1000.
Warranty: One year from date of delivery.

 

WORM GEARBOX          
SNW SERIES          Output Speed Range:
Type Old Type Output Torque Output Shaft Dia.   14rpm-280rpm
SNW030  RV030  21N.m  φ14   Applicable Motor Power:
SNW040  RV040  45N.m  φ19   0.06kW-11kW
SNW050  RV050  84N.m  φ25   Input Options1:
SNW063  RV063  160N.m  φ25   With Inline AC Motor
SNW075  RV075  230N.m  φ28   Input Options2:
SNW090  RV090  410N.m  φ35   With Square flange
SNW105  RV105  630N.m  φ42   Input Options3:
SNW110  RV110  725N.m  φ42   With Input Shaft
SNW130  RV130  1050N.m  φ45   Input Options4:
SNW150  RV150  1550N.m  φ50   With Input Flange

Starshine Drive

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor was a state-owned military mould enterprise, was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective measures
 to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the product
 is a product inspection to determine the qualified products.

Packing

Delivery

 

Application: Motor, Machinery, Agricultural Machinery
Function: Speed Reduction
Layout: Corner
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Single-Step
Customization:
Available

|

Customized Request

worm gearbox

Self-Locking Properties in a Worm Gearbox

Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.

The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.

This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.

However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.

When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.

worm gearbox

Worm Gearbox vs. Helical Gearbox: A Comparison

Worm gearboxes and helical gearboxes are two popular types of gear systems, each with its own set of advantages and disadvantages. Let’s compare them:

Aspect Worm Gearbox Helical Gearbox
Efficiency Lower efficiency due to sliding friction between the worm and worm wheel. Higher efficiency due to rolling contact between helical gear teeth.
Torque Transmission Excellent torque transmission and high reduction ratios achievable in a single stage. Good torque transmission, but may require multiple stages for high reduction ratios.
Noise and Vibration Generally higher noise and vibration levels due to sliding action. Lower noise and vibration levels due to smoother rolling contact.
Backlash Higher inherent backlash due to the design. Lower backlash due to meshing of helical teeth.
Efficiency at Higher Speeds Less suitable for high-speed applications due to efficiency loss. More suitable for high-speed applications due to higher efficiency.
Overload Protection Natural self-locking feature provides some overload protection. May not have the same level of inherent overload protection.
Applications Commonly used for applications requiring high reduction ratios, such as conveyor systems and heavy-duty machinery. Widely used in various applications including automotive transmissions, industrial machinery, and more.

Both worm and helical gearboxes have their place in engineering, and the choice between them depends on the specific requirements of the application. Worm gearboxes are preferred for applications with high reduction ratios, while helical gearboxes are chosen for their higher efficiency and smoother operation.

worm gearbox

Advantages of Using a Worm Reducer in Mechanical Systems

Worm reducers offer several advantages that make them suitable for various mechanical systems:

  • High Gear Reduction Ratio: Worm gearboxes provide significant speed reduction, making them ideal for applications that require a high gear reduction ratio without the need for multiple gears.
  • Compact Design: Worm reducers have a compact and space-saving design, allowing them to be used in applications with limited space.
  • Self-Locking: Worm gearboxes exhibit self-locking properties, which means that the worm screw can prevent the worm wheel from reversing its motion. This is beneficial for applications where the gearbox needs to hold a load in place without external braking mechanisms.
  • Smooth and Quiet Operation: Worm gearboxes operate with a sliding motion between the teeth, resulting in smoother and quieter operation compared to some other types of gearboxes.
  • High Torque Transmission: Worm gearboxes can transmit high torque levels, making them suitable for applications that require powerful torque output.
  • Heat Dissipation: The sliding action between the worm screw and the worm wheel contributes to heat dissipation, which can be advantageous in applications that generate heat during operation.
  • Stable Performance: Worm reducers offer stable and reliable performance, making them suitable for continuous operation in various industrial and mechanical systems.

Despite these advantages, it’s important to note that worm gearboxes also have limitations, such as lower efficiency compared to other gear types due to the sliding motion and potential for higher heat generation. Therefore, selecting the appropriate type of gearbox depends on the specific requirements and constraints of the application.

China high quality Right-Angle Worm Gearbox Vf Series manufacturer China high quality Right-Angle Worm Gearbox Vf Series manufacturer
editor by CX 2023-09-13

China supplier High Quality RV Series Small Transmission Worm Gearbox with Great quality

Product Description

High Quality RV Series Small Transmission Worm Gearbox

1.Model Number

NMRV 25 30 40 50 63 75 90 110 130 150
NRV No 30 40 50 63 75 90 110 130 150

2.Materials

Materials Housing: HT250 cast iron
Gear: 20CrMnTi,carburizing and quenching
Gear surface hardness: 58-62HRC
Gear center hardness: 33-48HRC
Grinding precision grade: ISO1328-1: 1995 class 5-6
Surfaceness: 0.8
Carburization depth: 0.6-1.5mm
Bearing: 42CrMo

3. Features

Characteristics Made of high-quality aluminum alloy, light in weight and non-rusting.
Large in output torque
Smooth in running and low in noise, can work long time in dreadful conditions.
High in radiating efficiency.
Good-looking in appearance, durable in service life and small in volume.
Suitable for omnibearing  installation.

4. Surface Painting
Aluminum alloy housing:
1.Shot blasting and special antiseptic treat-ment on the aluminum alloy surface.
2.After phosphating, paint with RAL5571blue or silvery white paint..
Cast iron housing
First paint with red antirust paint, then paint whith RAL5571blue or silvery white paint..

5.Our Services:

Pre-sale services 1. Select equipment model.
2.Design and manufacture products according to clients’ special requirement.
3.Train technical personal for clients
Services during selling 1.Pre-check and accept products ahead of delivery.
2. Help clients to draft solving plans.
After-sale services 1.Assist clients to prepare for the first construction scheme.
2. Train the first-line operators.
3.Take initiative to eliminate the trouble rapidly.
4. Provide technical exchanging.

6.Product picture:

7.Structure:

8.Certificate:

9.Packing & Delivery:

10.Our company :
AOKMAN was founded in 1982, which has more than 36 years in R & D and manufacturing of gearboxes, gears, shaft, motor and spare parts.
We can offer the proper solution for uncountable applications. Our products are widely used in the ranges of metallurgical, steel, mining, pulp and paper, sugar and alcohol market and various other types of machines with a strong presence in the international market.
AOKMAN has become a reliable supplier, able to supply high quality gearboxes.With 36 years experience, we assure you the utmost reliability and security for both product and services.

11.Customer visiting:

12.FAQ:
1.Q:What kinds of gearbox can you produce for us?
A:Main products of our company: UDL series speed variator,RV series worm gear reducer, ATA series shaft mounted gearbox, X,B series gear reducer,
P series planetary gearbox and R, S, K, and F series helical-tooth reducer, more
than 1 hundred models and thousands of specifications
2.Q:Can you make as per custom drawing?
A: Yes, we offer customized service for customers.
3.Q:What is your terms of payment ?
A: 30% Advance payment by T/T after signing the contract.70% before delivery
4.Q:What is your MOQ?
A: 1 Set

13.Contact:

Welcome you contace me if you are interested in our product.
Our team will support any need you might have.

Application: Motor, Machinery, Industry
Function: Speed Changing, Speed Reduction
Layout: Orthogonal
Hardness: Hardened
Installation: Horizontal Type
Step: Double-Step
Customization:
Available

|

Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

How to Calculate the Input and Output Speeds of a Worm Gearbox?

Calculating the input and output speeds of a worm gearbox involves understanding the gear ratio and the principles of gear reduction. Here’s how you can calculate these speeds:

  • Input Speed: The input speed (N1) is the speed of the driving gear, which is the worm gear in this case. It is usually provided by the manufacturer or can be measured directly.
  • Output Speed: The output speed (N2) is the speed of the driven gear, which is the worm wheel. To calculate the output speed, use the formula:

    N2 = N1 / (Z1 * i)

Where:
N2 = Output speed (rpm)
N1 = Input speed (rpm)
Z1 = Number of teeth on the worm gear
i = Gear ratio (ratio of the number of teeth on the worm gear to the number of threads on the worm)

It’s important to note that worm gearboxes are designed for gear reduction, which means that the output speed is lower than the input speed. Additionally, the efficiency of the gearbox, friction, and other factors can affect the actual output speed. Calculating the input and output speeds is crucial for understanding the performance and capabilities of the worm gearbox in a specific application.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China supplier High Quality RV Series Small Transmission Worm Gearbox with Great quality China supplier High Quality RV Series Small Transmission Worm Gearbox with Great quality
editor by CX 2023-09-13

China Professional Nmrv050 Worm Gear Box with Aluminum Body gearbox and motor

Product Description

RV series Characteristics

  • RV – Sizes:–150
  • Input Options: with input shaft, With Square flange,With Input Flange
  • Input Power 0.06 to 11 kW
  • RV-Size from 030 to 105 in die-cast aluminium alloy budy and over 110 in cast iron
  • Ratios between 5 and 100
  • Max torque 1550 N.m and admissible output radial loads max 8771 N
  • Aluminium units are supplied complete with synthetic oil and allow for universal mounting positions, with no need to modify lubricant quantity
  • Loading capacity in accordance with: ISO 9001:2015/GB/T 19001-2016
  • Size 030 and over are painted with RAL 5571 blue
  • Worm gear reducers are available with diffferent combinations: NMRV+NMRV, NMRVpower+NMRV, JWB+NMRV
  • NMRV, NRV+VS,NMRV+AS,NMRV+VS,NMRV+F
  • Options: torque arm, output flange, viton oil seals, low/high temperature oil, filling/drain/breather/level plug,Small gap

Basic models can be applied to a wide range of power reduction ratios from 5 to 1000.
Warranty: One year from date of delivery.

 

WORM GEARBOX          
SNW SERIES          Output Speed Range:
Type Old Type Output Torque Output Shaft Dia.   14rpm-280rpm
SNW030  RV030  21N.m  φ14   Applicable Motor Power:
SNW040  RV040  45N.m  φ19   0.06kW-11kW
SNW050  RV050  84N.m  φ25   Input Options1:
SNW063  RV063  160N.m  φ25   With Inline AC Motor
SNW075  RV075  230N.m  φ28   Input Options2:
SNW090  RV090  410N.m  φ35   With Square flange
SNW105  RV105  630N.m  φ42   Input Options3:
SNW110  RV110  725N.m  φ42   With Input Shaft
SNW130  RV130  1050N.m  φ45   Input Options4:
SNW150  RV150  1550N.m  φ50   With Input Flange

Starshine Drive

ZheJiang CHINAMFG Drive Co.,Ltd,the predecessor the predecessor was established in 1965. CHINAMFG specializes in the complete power transmission solution for high-end equipment manufacturing industries based on the aim of “Platform Product, Application Design and Professional Service”.
Starshine have a strong technical force with over 350 employees at present, including over 30 engineering technicians, 30 quality inspectors, covering an area of 80000 square CHINAMFG and kinds of advanced processing machines and testing equipments. We have a good foundation for the industry application development and service of high-end speed reducers & variators owning to the provincial engineering technology research center,the lab of gear speed reducers, and the base of modern R&D.

Our Team

Quality Control
Quality:Insist on Improvement,Strive for Excellence With the development of equipment manufacturing indurstry,customer never satirsfy with the current quality of our products,on the contrary,wcreate the value of quality.
Quality policy:to enhance the overall level in the field of power transmission  
Quality View:Continuous Improvement , pursuit of excellence
Quality Philosophy:Quality creates value

3. Incoming Quality Control
To establish the AQL acceptable level of incoming material control, to provide the material for the whole inspection, sampling, immunity. On the acceptance of qualified products to warehousing, substandard goods to take return, check, rework, rework inspection; responsible for tracking bad, to monitor the supplier to take corrective measures
 to prevent recurrence.

4. Process Quality Control
The manufacturing site of the first examination, inspection and final inspection, sampling according to the requirements of some projects, judging the quality change trend;
 found abnormal phenomenon of manufacturing, and supervise the production department to improve, eliminate the abnormal phenomenon or state.

5. FQC(Final QC)
After the manufacturing department will complete the product, stand in the customer’s position on the finished product quality verification, in order to ensure the quality of 
customer expectations and needs.

6. OQC(Outgoing QC)
After the product sample inspection to determine the qualified, allowing storage, but when the finished product from the warehouse before the formal delivery of the goods, there is a check, this is called the shipment inspection.Check content:In the warehouse storage and transfer status to confirm, while confirming the delivery of the product
 is a product inspection to determine the qualified products.

Packing

Delivery

Application: Motor, Machinery, Agricultural Machinery
Function: Speed Changing, Speed Reduction
Layout: Worm and Wrom Wheel
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Single-Step
Customization:
Available

|

Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

How to Calculate the Efficiency of a Worm Gearbox

Calculating the efficiency of a worm gearbox involves determining the ratio of output power to input power. Efficiency is a measure of how well the gearbox converts input power into useful output power without losses. Here’s how to calculate it:

  • Step 1: Measure Input Power: Measure the input power (Pin) using a power meter or other suitable measuring equipment.
  • Step 2: Measure Output Power: Measure the output power (Pout) that the gearbox is delivering to the load.
  • Step 3: Calculate Efficiency: Calculate the efficiency (η) using the formula: Efficiency (η) = (Output Power / Input Power) * 100%

For example, if the input power is 1000 watts and the output power is 850 watts, the efficiency would be (850 / 1000) * 100% = 85%.

It’s important to note that efficiencies can vary based on factors such as gear design, lubrication, wear, and load conditions. The calculated efficiency provides insight into how effectively the gearbox is converting power, but it’s always a good practice to refer to manufacturer specifications for gearbox efficiency ratings.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China Professional Nmrv050 Worm Gear Box with Aluminum Body gearbox and motor China Professional Nmrv050 Worm Gear Box with Aluminum Body gearbox and motor
editor by CX 2023-09-13

China Custom Agricultural Lf-149b 1: 1 Rotary Mower Gearbox planetary gearbox

Product Description

 

Product Description

Rotary mower gearbox LF-149B is a type of gearbox that is commonly used in rotary mowers. This rotary mower gearbox is designed to transfer power from the mower’s engine to the blades that cut the grass. The rotary mower gearbox LF-149B has a standard thread output shaft that is compatible with most rotary mowers on the market. It is made from high-quality materials such as steel and aluminum, giving it durability and longevity. Additionally, the rotary mower gearbox LF-149B is designed for low maintenance and is easy to install, making it a popular replacement choice for many rotary mowers.

Product Parameters

Product Description

Rotary Mower Gearboxes – Replacement of  Gearbox LF-149B 1:1
Product details
  • All gearboxes are supplied without oil.
  • First oil change after 50-70 operating hours, then after 500-700 operating hours or at least once a year.
  • Contact us for power at a different RPM.
Max. input power

47 kW
Contains oil

No
Max. oil capacity

0.8 l
Max. oil change interval

500 h
Oil SAE viscosity grade

80W-90
Housing material

Cast iron GGG40
Weight

33.4 kg
Gear arrangement Increasing

3
Gear ratio

1:1
Input power kW / HP Increasing

47 / 55 kW/HP
Input shaft Increasing

Z
Output Torque DaNm Increasing

81 daNm
Ratio Increasing

1: 1
Ratio Reducing

1: 1
Shaft Z

1 3/8″ (21)

 

Company Profile

 

We are a professional company engaged in the R&D, design, and manufacturing of gearboxes. The company has introduced a number of sophisticated production and testing equipment. We have successfully developed 800Nm-11200Nm planetary gearboxes for construction machinery, special planetary gearboxes for mixers, special planetary gearboxes for buildings, special reducers for mines, wind power reducers, hydraulic rotary, winch series, gearboxes for rolling mills, and other series of gearboxes with hundreds of thousands of specifications. The products have been widely used in building materials, metallurgy, engineering machinery, hoisting, shipping, chemical, pharmaceutical, electric power, and other supporting units and engineering projects.
Since its establishment, the company has been accelerating the pace of scientific and technological innovation and independent brand construction to build its core competitiveness with new thinking and new manufacturing awareness.

Our Equipments

Certification

Packaging and Shipment 

Related products

PTO Shaft

Agricultural gearbox:
Flail mower gearbox, rotary tiller gearbox, lawn mower gearbox, rotary cutter gearbox, agricultural sprayer gearbox, post hole digger gearbox, feed mixer gearbox, rotary mower gearbox, gearbox for circular saws, irrigation reels gearbox, agricultural generator gearbox, fertilizer spreader gearbox, hydraulic drive gearbox, manure spreader gearbox, rotary rakes gearbox, hay tedders gearbox, micro tiller gearbox, cutter bars gearbox, fertilizer mixer gearbox, agitators gearbox for sewage, round baler gearbox, snowblower gearbox

 

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Hardness: Soft Tooth Surface
Installation: 90 Degree
Layout: Coaxial
Gear Shape: Conical – Cylindrical Gear
Step: Stepless
Samples:
US$ 9999/Piece
1 Piece(Min.Order)

|
Request Sample

agricultural gearbox

Case Studies: Successful Implementations of Agricultural Gearboxes

Several case studies highlight the successful integration of agricultural gearboxes in farming machinery:

  1. Case Study 1: Tractor Versatility

    A farm in the Midwest implemented tractors equipped with adjustable gearboxes. The gearboxes allowed the tractors to seamlessly switch between plowing, planting, and harvesting tasks. The ability to customize speed and torque ratios improved efficiency and reduced the need for multiple machines.

  2. Case Study 2: Orchard Management

    An orchard in California utilized specialized gearboxes in its mechanized harvesters. These gearboxes facilitated controlled movement and precise positioning of the harvesters among trees. The adaptability of the gearboxes enabled the harvesters to navigate the orchard’s uneven terrain while minimizing damage to trees and fruit.

  3. Case Study 3: Precision Planting

    A farm in Europe integrated precision planting machinery with gearboxes that offered adjustable gear ratios. This allowed for precise control over seed placement and depth. The gearboxes played a vital role in achieving uniform crop emergence and optimizing seed-to-soil contact.

  4. Case Study 4: Multi-Tasking Implements

    A farming cooperative in Australia utilized multi-tasking implements equipped with versatile gearboxes. These implements could seamlessly switch between tasks such as plowing, harrowing, and fertilizing. The gearboxes’ ability to manage torque and speed ratios ensured optimal performance across various tasks.

  5. Case Study 5: Soil Conservation

    A farm in Africa adopted gearboxes in its soil conservation practices. By attaching specialized implements with adjustable gearboxes to their tractors, the farm effectively controlled soil erosion and improved water infiltration rates. The gearboxes allowed for precise adjustments based on soil type and slope.

These case studies illustrate the impactful role of agricultural gearboxes in enhancing efficiency, versatility, and productivity across a spectrum of farming applications.

agricultural gearbox

Enhancing Efficiency and Productivity in Farming Operations with Agricultural Gearboxes

Agricultural gearboxes play a pivotal role in enhancing efficiency and productivity across various farming operations. Here’s how agricultural gearboxes contribute to improving farming practices:

  • Power Transmission: Agricultural gearboxes efficiently transmit power from the tractor’s engine to various implements, enabling them to perform tasks like plowing, planting, and harvesting with optimal power and torque.
  • Variable Speed Control: Gearboxes allow farmers to adjust the speed of attached implements, adapting to different soil types, crop conditions, and tasks. This flexibility ensures precision and optimal performance.
  • Task Specialization: With the use of different attachments and implements, one tractor equipped with a gearbox can perform a variety of tasks, reducing the need for multiple specialized machines.
  • Optimized Torque: Agricultural gearboxes provide the necessary torque to overcome resistance from tough soils, vegetation, and other challenging conditions, ensuring consistent and efficient operations.
  • Improved Crop Management: Gearboxes enable precise control over seeding depth, planting spacing, and fertilization, contributing to better crop management and higher yields.
  • Reduced Operator Fatigue: Efficient power transmission and controlled operations reduce the physical strain on operators, enabling them to work longer hours without excessive fatigue.
  • Conservation of Resources: By allowing accurate distribution of seeds, fertilizers, and other inputs, gearboxes help conserve resources and minimize waste.
  • Enhanced Harvesting: Gearboxes facilitate smooth operation of harvesting equipment, such as combines and forage harvesters, resulting in efficient gathering of crops without damage.
  • Time and Labor Savings: Agricultural gearboxes speed up tasks like plowing, tilling, and planting, enabling farmers to cover larger areas in less time, which is particularly crucial during planting and harvesting seasons.
  • Reliability and Durability: Well-designed gearboxes are built to withstand the rigors of farming environments, reducing downtime due to maintenance or equipment failure.

Incorporating agricultural gearboxes into farming equipment significantly contributes to streamlining operations, reducing manual effort, and optimizing the use of resources. As a result, farmers can achieve higher levels of efficiency, productivity, and overall farm profitability.

agricultural gearbox

Power Transmission in Farming Equipment with Agricultural Gearboxes

Agricultural gearboxes play a vital role in facilitating power transmission within various types of farming equipment. These gearboxes are integral components that enable the transfer of rotational power from a tractor’s engine to different agricultural implements and machinery. Here’s how agricultural gearboxes contribute to power transmission:

  • Speed Reduction: In many farming operations, the engine of a tractor or other power source operates at a higher speed than is suitable for the optimal functioning of agricultural implements. Agricultural gearboxes provide speed reduction by using a combination of gears with different numbers of teeth. This reduction in speed allows the machinery to operate at the required speed for efficient tasks like tilling, planting, or harvesting.
  • Power Multiplication: Some agricultural tasks require a significant amount of torque to operate effectively. Gearboxes can multiply the input torque from the engine to generate higher torque at the output shaft. This is crucial for tasks such as plowing, where substantial force is needed to break up the soil.
  • Directional Change: Agricultural gearboxes also allow for changes in the direction of power transmission. For instance, a tractor’s power take-off (PTO) shaft may need to transmit power at a right angle to the tractor’s engine. Gearboxes with bevel gears or other arrangements enable this change in direction, ensuring that power is properly directed to the implement.
  • Power Distribution: In certain cases, power needs to be distributed to multiple components or implements. Agricultural gearboxes with multiple output shafts can distribute power to different tasks simultaneously, optimizing efficiency and productivity.
  • Attachment Operation: Many agricultural implements, such as plows, seed drills, and rotary mowers, require consistent and controlled power to function effectively. Gearboxes provide the necessary power and control to these attachments, ensuring uniform operation and accurate results.

By facilitating speed reduction, power multiplication, directional changes, power distribution, and attachment operation, agricultural gearboxes contribute significantly to the overall efficiency and productivity of farming equipment. They allow farmers to adapt their machinery to various tasks, optimize power usage, and achieve better results in different agricultural operations.

China Custom Agricultural Lf-149b 1: 1 Rotary Mower Gearbox planetary gearbox China Custom Agricultural Lf-149b 1: 1 Rotary Mower Gearbox planetary gearbox
editor by CX 2023-09-13

China Professional Nmrv/Nrv Nmrv040 Worm Gear Speed Reduction Reducer Gearbox cvt gearbox

Product Description

NMRV  REDUCTION WORM GEARBOX
The NMRV 040 worm gear motor is characterized by a wide range of gear ratios (5 – 80), a compact aluminum alloy housing, and ease of installation and maintenance. The unit is equipped with an engine power of 0.09 – 0.55 kW. Output shaft rotation frequency: 900 – 2800 rpm.
The NMRV 040 motor gearbox has similar mounting dimensions with the Siti MU40, STM UMI 40, Varvel SRT 40 drives and can be used to replace them.
Parts materials:
Case – aluminum, flanges – aluminum, worm – steel, worm wheel CHINAMFG – bronze. 
Type of lubricant: synthetic ISO VG 320. 
Weight: 2.3 kg.

Type designation scheme

NMRV – 040 – 80 – 17.5 – 0.12 – B3

  • NMRV – worm gear motor
  • 040 – size (center distance, mm)
  • 80 – gear ratio
  • 17.5 – output shaft rotation speed, rpm
  • 0,12 – electric motor power, kW
  • B3 – mounting position

NMRV 040 gearbox performance

I
 		 n 1 = 2800 rpm n 1 = 1400 rpm n 1 = 900, rpm
n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%		 n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%		 n 2 ,
rpm		 T 2M ,
N * m		 P
kw		 RD
%
5 560 24 1.50 87 280 36 1.10 86 180 41 0.80 84
7.5 373 29 1.30 88 187 41 0.93 86 120 49 0.73 84
10 280 32 1.10  86 140  44 0.76 84 90 50 0.58 82
15 187 34  0.78  84 93  44  0.53  81 60 52  0.41 79
20 140 31  0.56  82 70  40  0.37  79 45 47  0.29 76
25 112 34  0.50  79 56  43  0.34  74 36 49  0.26 71
30 93 33  0.44  73 47  38  0.27  68 30 43  0.21 65
40 70 35  0.36  72 35  44  0.24  67 23 52  0.19 64
50 56 32  0.29  65 28  41  0.20  60 18 48  0.16 57
60 47 29  0.24  59 23  38  0.17  54 15 41  0.13 50
80 35 23  0.15  56 18  31  0.11  51 11 37  0.09 49
100 28 24  0.13  53 14  29  0.09  48 9 33  0.07 44
  • n1 – rotational speed el. engine;
  • n2 – revolutions on the output shaft;
  • T 2M – torque on the output shaft;
  • P is the maximum allowable engine power;
  • RD – efficiency

GEARBOX FEATURE

1.Good quality,long life time,low noise.
 
3.High efficiency,big torque.

 

Overall and mounting dimensions NMRV 040

NMRV040 gear motor  has a wide range of gear ratios.
Gear ratios:  5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100 .

Output flange to NMRV 040 gearbox

Geared NMRV040 can be supplied with unilateral or bilateral output shaft. 
The gearbox comes standard with a hollow output shaft

A torque arm is an additional option to the gearbox.

  Model  NMRV SERIES
  Single Stage  RV25-RV150
  Ratio  7.5-100
  Input Power  0.06KW-15KW
  Output Speed  14-280rpm
  Output Torque   5-1800Nm
Core parts  worm wheel,worm shaft
 Core parts material      worm shaft:20 Cr Mn Ti,worm wheel:Nodular cast iron interal,9-4 copper external
  Lubrication   RV30-90:synthetic oil, RV110-150:GN460-W mineral oil
 Bearings  C&U

 
 
 

Application: Motor, Motorcycle, Machinery, Agricultural Machinery, Industry
Hardness: Hardened
Installation: Any Angle
Gear Shape: Worm Gear
Step: Single-Step
Type: Worm and Wormwheel
Samples:
US$ 20/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

worm gearbox

Calculating Gear Ratio in a Worm Reducer

The gear ratio in a worm reducer is determined by the number of teeth on the worm wheel (also known as the worm gear) and the number of threads on the worm shaft. The gear ratio formula for a worm reducer is:

Gear Ratio = Number of Teeth on Worm Wheel / Number of Threads on Worm Shaft

For example, if the worm wheel has 60 teeth and the worm shaft has a single thread, the gear ratio would be 60:1.

It’s important to note that worm reducers have an inherent self-locking property due to the angle of the worm threads. As a result, the gear ratio also affects the mechanical advantage and the system’s ability to resist backdriving.

When calculating the gear ratio, ensure that the worm reducer is properly designed and that the gear ratio aligns with the desired mechanical characteristics for your application. Additionally, consider factors such as efficiency, load capacity, and speed limitations when selecting a gear ratio for a worm reducer.

worm gearbox

Worm Gearboxes in Conveyor Systems: Benefits and Considerations

Worm gearboxes play a crucial role in conveyor systems, offering several benefits and considerations for their effective integration:

  • Space Efficiency: Worm gearboxes have a compact design, making them suitable for applications with limited space, such as conveyor systems.
  • High Reduction Ratios: Worm gearboxes can achieve high reduction ratios in a single stage, allowing for slower conveyor speeds without sacrificing torque.
  • Self-Locking: Worm gearboxes have inherent self-locking properties, preventing the conveyor from moving when the motor is not actively driving it.
  • Directional Control: Worm gearboxes facilitate directional control, enabling the conveyor to move forward or reverse as needed.
  • Low Noise: Worm gearboxes often produce lower noise levels compared to other gearbox types, contributing to quieter conveyor operation.

However, there are also considerations to keep in mind when using worm gearboxes in conveyor systems:

  • Efficiency: Worm gearboxes may have lower mechanical efficiency compared to some other gearbox types, leading to energy losses.
  • Heat Generation: Worm gearboxes can generate more heat due to sliding contact between the worm and gear, necessitating proper cooling mechanisms.
  • Lubrication: Proper lubrication is critical to prevent wear and ensure efficient operation. Regular maintenance is required to monitor lubrication levels.
  • Load and Speed: Worm gearboxes are well-suited for applications with high torque and low to moderate speed requirements. They may not be optimal for high-speed conveyors.

Before integrating a worm gearbox into a conveyor system, it’s important to carefully consider the specific requirements of the application, including load, speed, space constraints, and efficiency needs. Consulting with gearbox experts and manufacturers can help ensure the right choice for the conveyor’s performance and longevity.

worm gearbox

Types of Worm Gear Configurations and Their Uses

Worm gear configurations vary based on the arrangement of the worm and the gear it engages with. Here are common types and their applications:

  • Single Enveloping Worm Gear: This configuration offers high torque transmission and efficiency. It’s used in heavy-duty applications like mining equipment and industrial machinery.
  • Double Enveloping Worm Gear: With increased contact area, this type provides higher load capacity and improved efficiency. It’s used in aerospace applications, robotics, and precision machinery.
  • Non-Throated Worm Gear: This type has a cylindrical worm without a throat. It’s suitable for applications requiring precise motion control, such as CNC machines and robotics.
  • Throated Worm Gear: Featuring a throat in the worm, this configuration offers smooth engagement and higher load capacity. It’s used in conveyors, elevators, and automotive applications.
  • Non-Modular Worm Gear: In this design, the worm and gear are a matched set, resulting in better meshing and efficiency. It’s utilized in various industries where customization is essential.
  • Modular Worm Gear: This type allows interchangeability of worm and gear components, providing flexibility in design and maintenance. It’s commonly used in conveyors, mixers, and material handling systems.

Selecting the appropriate worm gear configuration depends on factors such as load capacity, efficiency, precision, and application requirements. Consulting gearbox experts can help determine the best configuration for your specific needs.

China Professional Nmrv/Nrv Nmrv040 Worm Gear Speed Reduction Reducer Gearbox cvt gearbox China Professional Nmrv/Nrv Nmrv040 Worm Gear Speed Reduction Reducer Gearbox cvt gearbox
editor by CX 2023-09-13

China Best Sales Small Model Nmrv 025 Speed Reducer Worm Gearbox gearbox drive shaft

Product Description

Introduction of Worm Gearbox

1. Made of high-quality aluminum alloy or stainless steel, light in weight and non-rusting

2. Smooth in running and low in noise, can work long time in dreadful conditions

3. High in radiating efficiency

4. Good-looking in appearance, durable in service life and small in volume

5. Suitable for omni-bearing installation

6. Inch size and metric size are both available

Worm Gearbox Main Materials

1. Housing: Die-cast aluminum alloy(frame size 571-090); cast iron(frame size 110-150 )

2. Worm shaft: 20CrMnTi, carbonize heat treatment make the hardness of gear’s surface up to 56-62 HRC. Retain carburization layer’s thickness between 0.3 and 0.5mm after precise grinding

3. Worm wheel: Wearable tin bronze alloy

 

Detailed Specification

 

Type: Worm Gear Speed Reducer
Model: NMRV571-150
Ratio: 5,7.5,10,15,20,25,30,40,50,60,80,100
Color: Blue/silver or on customer request
Material: Housing: Aluminium alloy or cast iron
Worm Gear: Copper-10-3#
Worm: 20CrMn Ti with carburizing and quenching, surface harness is 56-62HRC
Shaft: Chromium steel-45#
Lubricant: Synthetic & Mineral
Bearing: C&U bearing
Seal: KSK & SKF
Temperature: -30-40°C
IEC Flange B5/B14
Rated Power 0.06kw~15kw
Application Metallurgical machinery, food machinery, stage machinery,
welding machinery, road machinery, amusement machines,
packaging machinery, rubber and plastic machinery,
environmental protection machinery, engineering machinery,
construction machinery, machine tool industry,
automotive industry, logistics and transportation and so on

Mounting Method

Company Overview
 

Certificates

Exhibitions

FAQ

1 Q: What’s your MOQ for Worm Gearbox?
   A: 1 unit is ok for different types. 

2 Q: What about your warranty for your Worm Gearbox?
   A: One year.

3 Q: Do you provide OEM service with customer-logo?
   A: Yes, we could do OEM orders, but we mainly focus on our own brand.

4 Q: How about your payment terms ?
   A: TT, western union and paypal. 100% payment in advanced for orders less $5,000. 30% deposit and balance before delivery for orders over $5,000.

5 Q: How about your packing ?
   A: Carton, Plywood case. If you need more, we can pack all goods with pallet 

6 Q: What information should be given, if I buy Worm Gearbox from you ?
   A: Rated power, gearbox ratio, input speed, mounting position. More details, better!

7 Q: How do you deliver the Worm Gearbox?
   A: We will compare and choose the most suitable ways of delivery by sea, air or express courier.

We hope you will enjoy cooperating with us.

Application: Motor, Machinery, Agricultural Machinery
Function: Change Drive Torque, Speed Changing, Speed Reduction
Layout: Right Angle Shaft
Hardness: Hardened Tooth Surface
Installation: Flange Mounting
Step: Four-Step
Samples:
US$ 20/Piece
1 Piece(Min.Order)

|
Request Sample

Customization:
Available

|

Customized Request

worm gearbox

Self-Locking Properties in a Worm Gearbox

Yes, worm gearboxes exhibit self-locking properties, which can be advantageous in certain applications. Self-locking refers to the ability of a mechanism to prevent the transmission of motion from the output shaft back to the input shaft when the system is at rest. Worm gearboxes inherently possess self-locking properties due to the unique design of the worm gear and worm wheel.

The self-locking behavior arises from the angle of the helix on the worm shaft. In a properly designed worm gearbox, the helix angle of the worm is such that it creates a mechanical advantage that resists reverse motion. When the gearbox is not actively driven, the friction between the worm threads and the worm wheel teeth creates a locking effect.

This self-locking feature makes worm gearboxes particularly useful in applications where holding a load in position without external power is necessary. For instance, they are commonly used in situations where there’s a need to prevent a mechanism from backdriving, such as in conveyor systems, hoists, and jacks.

However, it’s important to note that while self-locking properties can be beneficial, they also introduce some challenges. The high friction between the worm gear and worm wheel during self-locking can lead to higher wear and heat generation. Additionally, the self-locking effect can reduce the efficiency of the gearbox when it’s actively transmitting motion.

When considering the use of a worm gearbox for a specific application, it’s crucial to carefully analyze the balance between self-locking capabilities and other performance factors to ensure optimal operation.

worm gearbox

Worm Gearbox Applications in Robotics and Automation

Worm gearboxes play a crucial role in various robotics and automation applications due to their unique characteristics and benefits. Here are some common applications where worm gearboxes are used:

  • Robotic Arm Movement: Worm gearboxes are employed in robotic arms to provide precise and controlled movement. The self-locking property of worm gearboxes helps maintain the arm’s position without requiring additional brakes.
  • Conveyor Systems: In automated production lines, worm gearboxes are used to drive conveyor belts and move materials or products along assembly lines with accuracy.
  • Precision Positioning: Worm gearboxes are used in precision positioning systems, such as those found in pick-and-place robots and CNC machines. They ensure accurate and repeatable movements.
  • Pan and Tilt Mechanisms: Worm gearboxes are utilized in pan and tilt mechanisms of surveillance cameras, robotic cameras, and sensors. The self-locking feature helps stabilize and maintain the desired angle.
  • Automated Gates and Doors: Worm gearboxes are used in automated gate and door systems to control their opening and closing movements smoothly and safely.
  • Material Handling: Robots in warehouses and distribution centers use worm gearboxes to manipulate and lift objects, enhancing efficiency in material handling.
  • Medical Robotics: Worm gearboxes are employed in medical robots for surgical procedures, diagnostic equipment, and rehabilitation devices, ensuring precise and controlled movements.
  • Industrial Robots: Industrial robots rely on worm gearboxes for various tasks, including welding, painting, assembly, and packaging, where precise movements are essential.
  • Automated Testing Equipment: In testing and inspection applications, worm gearboxes provide the necessary movement and positioning for accurate testing and measurements.
  • Food and Beverage Industry: Worm gearboxes are used in automated food processing and packaging systems, ensuring hygienic and precise movement of products.

Worm gearboxes are preferred in these applications due to their compact size, high torque output, self-locking feature, and ability to provide a right-angle drive. However, selecting the right gearbox requires considering factors such as load, speed, efficiency, and environmental conditions.

worm gearbox

Preventing Backlash in a Worm Gearbox

Backlash in a worm gearbox can lead to reduced accuracy, positioning errors, and decreased overall efficiency. Here are steps to prevent or minimize backlash:

  • High-Quality Components: Use high-quality worm gears and worm wheels with tight manufacturing tolerances. Precision components will help reduce backlash.
  • Proper Meshing: Ensure the worm gear and worm wheel are properly aligned and meshed. Improper meshing can lead to increased backlash.
  • Preload: Applying a small amount of preload to the worm gear can help reduce backlash. However, excessive preload can increase friction and wear.
  • Anti-Backlash Mechanisms: Consider using anti-backlash mechanisms, such as spring-loaded systems or adjustable shims, to compensate for any inherent backlash.
  • Lubrication: Proper lubrication can reduce friction and play a role in minimizing backlash. Use a lubricant that provides good film strength and reduces wear.
  • Maintenance: Regularly inspect and maintain the gearbox to identify and address any changes in backlash over time.

It’s important to strike a balance between reducing backlash and maintaining smooth operation. Consulting with gearbox experts and following manufacturer guidelines will help you optimize your worm gearbox’s performance while minimizing backlash.

China Best Sales Small Model Nmrv 025 Speed Reducer Worm Gearbox gearbox drive shaft China Best Sales Small Model Nmrv 025 Speed Reducer Worm Gearbox gearbox drive shaft
editor by CX 2023-09-13