Product Description
High Rpm RV series Aluminum Alloy Worm Gear box NMRV 571-150 Reducer Variable Wheel Drive Speed Reduction Worm Gearbox
Product Parameters
Specification
|
Type |
Worm Gearbox/Worm Gear Speed Reducer |
|
Model |
NMRV:571,030,040,050,063,075,090,110,130,150 |
|
Center distance |
25-150mm |
|
Ratio |
5,7.5,10,15,20,25,30,40,50,60,80,100 |
|
Torque |
1.8-1800Nm |
|
Motor |
2 pole, 4 pole, 6 pole |
|
Mounting position |
Omnidirectional |
|
Color |
Blue/Silver grey Or On request |
|
Material |
NMRV571~090:Aluminum alloy; NMRV110~150 Cast iron |
Details
Multiple inputs and outputs
Feature
1. Mad of high-quality aluminum alloy,light weight and non-rusting
2. Large output torque
3. Smooth in running and low in noise,can work long time in dreadful conditions.
4. High in radiating efficiency.
5. Good-looking in appearance,durable in service life and small in volume.
6. Suitable for omnibearing installation.
contact-info.html
|
Model |
NMRV571, NMRV030, NMRV040, NMRV050, NMRV063, NMRV075, NMRV090, NMRV110, NMRV130, NMRV150 |
|
Ratio |
5,7.5,10,15,20,25,30,40,50,60,80,100 |
|
Output Torque |
1.8-1760Nm |
|
Application |
Machinery Industry |
|
Input Speed |
900-2800RPM |
|
Output Speed |
10-250RPM |
|
Material |
Housing: Size 25-110 Is Aluminum Alloy, Size 110-150 Is Cast-Iron |
|
Worm Wheel: ZCuSn10Pb1 |
|
|
Worm:20Cr |
|
|
Pinion:Tin Bronze |
|
|
Output Shaft: Steel-45# |
|
|
IEC Flange |
IEC Standard Flange Or On Customer Request |
Detailed Photos
| Hardness: | Hardened Tooth Surface |
|---|---|
| Installation: | 90 Degree |
| Layout: | Expansion |
| Gear Shape: | Bevel Gear |
| Step: | Single-Step |
| Type: | Gear Reducer |
| Samples: |
US$ 30/Piece
1 Piece(Min.Order) | |
|---|

Advantages of Using Worm Gear in an NMRV Gearbox
Worm gears offer several advantages when used in an NMRV gearbox:
1. High Reduction Ratio: Worm gears provide a high reduction ratio in a compact form, allowing for significant speed reduction in a single stage.
2. High Efficiency: While worm gears typically have lower mechanical efficiency compared to some other gear types, the design of the NMRV gearbox optimizes efficiency by using a bronze worm gear and a self-locking mechanism that minimizes backdriving.
3. Compact Design: Worm gears have a compact and space-efficient design, making them suitable for applications with limited installation space.
4. Smooth and Quiet Operation: The meshing of worm gears and the helical design of the worm result in relatively smooth and quiet operation.
5. Self-Locking: Worm gears inherently have a self-locking characteristic, meaning that the gear cannot easily be back-driven by the worm. This property is beneficial for applications where holding position without external locking mechanisms is essential.
6. High Torque Capacity: Worm gears can transmit high torque loads, making them suitable for applications that require high torque output.
7. Simple Lubrication: The design of the NMRV gearbox allows for efficient lubrication of the worm gear, ensuring optimal performance and longevity.
These advantages make worm gears a popular choice for NMRV gearboxes in various industrial applications, where their characteristics contribute to reliable and efficient power transmission.

Maintenance and Service of an NMRV Gearbox
Maintaining and servicing an NMRV (worm gear) gearbox is essential to ensure its proper functioning, longevity, and reliability. Here are the steps and practices involved in maintaining and servicing an NMRV gearbox:
- Lubrication: Regularly lubricate the gearbox as per the manufacturer’s recommendations. Use the appropriate lubricant to ensure smooth operation and to reduce friction and wear between the gear components.
- Inspection: Periodically inspect the gearbox for any signs of wear, damage, or leaks. Check for unusual noises, vibrations, or overheating during operation.
- Cleaning: Keep the gearbox and its surrounding area clean to prevent the buildup of dirt, debris, or contaminants that could potentially affect its performance.
- Tighten Fasteners: Check and tighten any fasteners, bolts, or screws that might have loosened due to vibrations during operation.
- Seal Inspection: Examine the seals and gaskets for signs of wear or leakage. Replace them if necessary to prevent oil leaks or ingress of contaminants.
- Temperature Monitoring: Monitor the operating temperature of the gearbox. Excessive heat can lead to premature wear and damage. Ensure proper ventilation and cooling if required.
- Address Issues Promptly: If you notice any unusual behavior, noise, or performance issues with the gearbox, address them promptly. Ignoring problems can lead to more significant damage over time.
- Replace Worn Parts: If any components, such as gears, bearings, or seals, are worn or damaged, replace them with genuine manufacturer-approved parts.
- Professional Service: For more extensive servicing, repairs, or overhauls, consult a professional with expertise in gearbox maintenance. They can disassemble, inspect, and reassemble the gearbox accurately.
By following these maintenance and servicing practices, you can ensure that your NMRV gearbox remains in optimal condition, delivering reliable performance and an extended operational lifespan.

Installing an NMRV Gearbox
Installing an NMRV gearbox requires careful attention to ensure proper alignment and secure attachment. Here’s a general guide to the installation process:
- Prepare the Workspace: Ensure you have a clean and organized workspace with the necessary tools and equipment.
- Positioning: Place the NMRV gearbox in the desired position on your machinery, making sure it aligns with the input and output components.
- Alignment: Ensure that the input shaft of the gearbox is aligned with the driving shaft from the power source. Misalignment can lead to premature wear and reduced efficiency.
- Mounting: Securely mount the NMRV gearbox to the machinery frame using appropriate fasteners. Follow the manufacturer’s recommendations for torque specifications.
- Input Coupling: Connect the input shaft of the gearbox to the driving shaft using a suitable coupling. This coupling should be properly aligned to avoid unnecessary stress on the gearbox components.
- Output Coupling: Similarly, connect the output shaft of the gearbox to the driven component using an appropriate coupling.
- Lubrication: Before operation, make sure to fill the gearbox with the recommended lubricant to ensure proper gear meshing and reduce friction.
- Testing: Run the machinery briefly to check for any unusual noises, vibrations, or leaks. Make any necessary adjustments.
It’s crucial to follow the manufacturer’s installation guidelines and specifications to ensure a smooth and trouble-free installation process. Proper installation contributes to the longevity and reliable performance of your NMRV gearbox.


editor by CX 2023-10-17
China Custom Worm Gear Speed Reducer Gear Motor Nmrv Worm Reduction Gearbox Connector Transmission High Quality RV Worm Gearbox Ratio 5-100 Made in China gearbox design
Product Description
Worm Gear Speed Reducer Gear Motor Nmrv Worm Reduction Gearbox Connector Transmission High Quality RV Worm Gearbox Ratio 5-100 Made in China
Features
1. Light in weight and non-rusting
2. Smooth in running, can work long time in dreadful conditions
3. High efficiency, low noise
4. Good-looking in appearance, durable in service life and small in volume
Detailed Photos
Product Parameters
Specification for worm gearbox:
| Model | 571 ~ 150 |
| Power | 0.06kw ~ 15kw |
| Input speed | 750rpm ~ 2000rpm |
| Reduction ratio | 1/5 ~ 1/100 |
| Input motor | AC (1 phase or 3 phase) / DC / BLDC / Stepper / Servo |
| Output shaft | Solid shaft / Hollow shaft / Output flange… |
| Dimension standard | Metric size / Inch size |
| Material of housing | die-cast aluminum / Cast iron / Stainless steel |
| Accessories | Flange / CHINAMFG shaft / Torque arm / Cover … |
Our Advantages
Certifications
FAQ
Q: Can you make the gearbox with customization?
A: Yes, we can customize per your request, like flange, shaft, configuration, material, etc.
Q: Do you provide samples?
A: Yes. The sample is available for testing.
Q: What is your MOQ?
A: It is 10pcs for the beginning of our business.
Q: What’s your lead time?
A: Standard products need 5-30days, a bit longer for customized products.
Q: Do you provide technical support?
A: Yes. Our company have design and development team, we can provide technical support if you
need.
Q: How to ship to us?
A: It is available by air, or by sea, or by train.
Q: How to pay the money?
A: T/T and L/C is preferred, with a different currency, including USD, EUR, RMB, etc.
Q: How can I know the product is suitable for me?
A: >1ST confirm drawing and specification >2nd test sample >3rd start mass production.
Q: Can I come to your company to visit?
A: Yes, you are welcome to visit us at any time.
Q: How shall we contact you?
A: You can send inquiry directly, and we will respond within 24 hours.
| Application: | Machinery |
|---|---|
| Function: | Change Drive Torque, Speed Reduction |
| Layout: | Right Angle |
| Samples: |
US$ 50/Piece
1 Piece(Min.Order) | Order Sample |
|---|
| Customization: |
Available
| Customized Request |
|---|
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| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|

Calculating Torque Requirements for an NMRV Gearbox
Calculating torque requirements for an NMRV gearbox involves several steps: Identify Input Torque, Calculate Output Torque, Consider Efficiency, and Add Safety Margin.
- Identify Input Torque: Determine the input torque required by the application, taking into account factors such as load, speed, and efficiency.
- Calculate Output Torque: Use the gear ratio of the NMRV gearbox to calculate the output torque needed to achieve the desired output speed.
- Consider Efficiency: Take into account the efficiency of the NMRV gearbox. The actual output torque will be influenced by the gearbox’s mechanical efficiency.
- Add Safety Margin: To ensure reliable performance and account for variations in operating conditions, it’s recommended to add a safety margin to the calculated torque requirements.
Formula to calculate output torque: Output Torque = Input Torque × Gear Ratio × Gearbox Efficiency
Keep in mind that torque requirements can vary based on the specific application and factors such as load type, duty cycle, and environmental conditions. Consulting with gearbox manufacturers or engineering experts can help ensure accurate torque calculations for your NMRV gearbox application.

Lifespan of an NMRV Gearbox
The lifespan of an NMRV (worm gear) gearbox can vary based on several factors, including the quality of manufacturing, proper maintenance practices, operating conditions, and the specific application it is used for. However, when designed, manufactured, and maintained properly, NMRV gearboxes can have a long and reliable service life.
High-quality NMRV gearboxes that are made from durable materials, precisely machined, and assembled with care tend to have a longer lifespan. Regular maintenance, including proper lubrication, inspection, and addressing any signs of wear or damage, can significantly extend the gearbox’s operational life.
The operating conditions in which the gearbox is used also play a role in determining its lifespan. Factors such as load, temperature, speed, and environment can impact the wear and tear on the gearbox components.
It’s important to follow the manufacturer’s recommendations for maintenance intervals and procedures to ensure optimal performance and longevity of the NMRV gearbox. By adhering to these guidelines and addressing any issues promptly, users can expect an NMRV gearbox to provide reliable service for many years.

NMRV Gearbox Ratios
NMRV gearboxes are available in a variety of gear ratios to suit different applications and torque requirements. The gear ratio determines the relationship between the input and output speeds of the gearbox. Commonly available ratios include:
- 5:1: This ratio provides higher output torque at a slower output speed compared to the input speed.
- 7.5:1: This ratio offers a balance between torque and speed.
- 10:1: With this ratio, the output speed is further reduced while increasing torque output.
- 15:1: This ratio is suitable for applications requiring higher torque output at the expense of speed.
- 20:1: This ratio maximizes torque output while significantly reducing output speed.
- 25:1: It provides even higher torque output at a further reduced output speed.
- 30:1: This ratio is ideal for applications demanding maximum torque at minimum output speed.
- 40:1 and higher: These ratios are used in applications with very high torque requirements and low output speed.
The choice of gearbox ratio depends on the specific application, desired output speed, and required torque. It’s important to select the right ratio to ensure optimal performance and efficiency in your machinery.


editor by CX 2023-10-11
China Hot selling Nmrv 050 Gearbox Gear Box Wheel Speed Reducer Jack Worm Planetary Helical Bevel Steering Gear Drive Worm Manufacturer Industrial Worm Nmrv 050 Gearbox automatic gearbox
Product Description
NMRV 050 Gearbox Gear Box Wheel Speed Reducer Jack Worm Planetary Helical Bevel Steering Gear Drive Worm Manufacturer Industrial Worm NMRV 050 Gearbox
Application of NMRV 050 Gearbox
NMRV 050 gearboxes are a type of worm gear reducer that is used in a wide variety of applications. They are typically used in applications where high torque and low speed are required. Some common applications for NMRV 050 gearboxes include:
- Conveyors: NMRV 050 gearboxes are used to power conveyors, which are used to transport materials in a variety of industries, such as manufacturing, food processing, and logistics.
- Pumps: NMRV 050 gearboxes are used to power pumps, which are used to move fluids in a variety of applications, such as water treatment, wastewater treatment, and oil and gas production.
- Fans: NMRV 050 gearboxes are used to power fans, which are used to circulate air in a variety of applications, such as heating, ventilating, and air conditioning (HVAC).
- Actuators: NMRV 050 gearboxes are used to power actuators, which are used to move objects in a variety of applications, such as robotics, automation, and aerospace.
- Elevators: NMRV 050 gearboxes are used to power elevators, which are used to transport people and goods between different floors of a building.
- Security gates: NMRV 050 gearboxes are used to power security gates, which are used to control access to a building or area.
- Worm drive saws: NMRV 050 gearboxes are used to power worm drive saws, which are used to cut wood, metal, and other materials.
NMRV 050 gearboxes offer a number of advantages over other types of gear reducers, including:
- High torque: NMRV 050 gearboxes can generate high torque, which makes them ideal for applications where heavy loads need to be moved.
- Low speed: NMRV 050 gearboxes operate at low speeds, which makes them ideal for applications where smooth and controlled movement is required.
- Compact size: NMRV 050 gearboxes are typically smaller than other types of gear reducers, which makes them ideal for applications where space is limited.
- Low maintenance: NMRV 050 gearboxes require very little maintenance, which makes them a cost-effective choice for many applications.
Here are some of the limitations of NMRV 050 gearboxes:
- Low efficiency: NMRV 050 gearboxes are not as efficient as other types of gear reducers, which can lead to increased energy costs.
- High noise levels: NMRV 050 gearboxes can be noisy, which can be a concern in some applications.
- High maintenance costs: NMRV 050 gearboxes require more frequent maintenance than other types of gear reducers, which can increase overall costs.
Despite these limitations, NMRV 050 gearboxes remain a popular choice for a wide variety of applications due to their high torque and low speed capabilities.
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car |
|---|---|
| Function: | Distribution Power, Clutch, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Speed Increase |
| Layout: | Coaxial |
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Step: | Steel |
| Samples: |
US$ 9999/Piece
1 Piece(Min.Order) | |
|---|

Safety Precautions When Working with NMRV Gearboxes
Working with NMRV (worm gear) gearboxes requires careful attention to safety to prevent accidents and injuries. Here are some essential safety precautions to consider:
- Personal Protective Equipment (PPE): Always wear appropriate PPE, such as gloves, safety glasses, and protective clothing, to protect yourself from potential hazards.
- Lockout-Tagout: Before performing any maintenance or repairs, ensure the equipment is properly shut down and locked out to prevent accidental startup.
- Training: Only qualified personnel with proper training and experience should work on NMRV gearboxes to minimize the risk of errors and accidents.
- Proper Tools: Use the correct tools for the job and ensure they are in good condition. Incorrect tools can cause damage or pose safety risks.
- Adequate Lighting: Work in well-lit areas to enhance visibility and reduce the risk of accidents caused by poor lighting.
- Secure Work Area: Ensure the work area is clean, organized, and free from clutter to prevent tripping hazards and improve overall safety.
- Lubrication: When applying lubricants, be cautious to avoid spills. Clean up any spills immediately to prevent slips and falls.
- Follow Manufacturer Guidelines: Adhere to the manufacturer’s instructions, maintenance schedules, and safety guidelines when working on NMRV gearboxes.
- Electrical Safety: If the gearbox is electrically powered, ensure proper electrical safety protocols are followed during maintenance or repairs.
- Avoid Overloading: Do not exceed the recommended load capacities of the gearbox to prevent mechanical failures and potential hazards.
- Stay Clear of Moving Parts: Keep hands, clothing, and other objects away from moving parts to prevent entanglement or injury.
- Emergency Procedures: Be familiar with emergency shutdown procedures and know how to respond in case of an unexpected situation.
By following these safety precautions, you can help ensure a safe working environment and minimize the risk of accidents or injuries when working with NMRV gearboxes.

Benefits of Using an NMRV Gearbox
NMRV gearboxes offer several advantages that make them a popular choice in various applications:
- Compact Design: NMRV gearboxes are compact and space-efficient, making them suitable for installations with limited space.
- High Efficiency: These gearboxes are designed for high efficiency, minimizing energy losses during power transmission.
- Smooth Operation: NMRV gearboxes provide smooth and reliable operation due to their precise gear meshing and design.
- Quiet Performance: The design and quality of NMRV gearboxes contribute to quiet operation, reducing noise levels in various applications.
- Cost-Effective: Their efficient manufacturing processes and durability make NMRV gearboxes a cost-effective choice for power transmission.
- Wide Ratio Range: NMRV gearboxes are available in a wide range of gear ratios, allowing users to select the most suitable option for their specific application needs.
- Corrosion Resistance: Many NMRV gearboxes are constructed using materials that offer corrosion resistance, enhancing their longevity and performance in harsh environments.
- Easy Installation: The compact and lightweight design of NMRV gearboxes makes them relatively easy to install and integrate into various systems.
- Low Maintenance: With proper lubrication and maintenance, NMRV gearboxes can have a long service life with minimal maintenance requirements.
- Versatility: NMRV gearboxes are versatile and can be used in a wide range of applications, from industrial machinery to conveyor systems.
These benefits collectively contribute to the popularity of NMRV gearboxes in industries where efficient and reliable power transmission is crucial.

Choosing the Right Size NMRV Gearbox for Your Application
Selecting the appropriate size NMRV gearbox for your application involves considering several important factors:
- Input Power: Determine the power requirement of your application, including both the input speed and the required output torque.
- Service Factor: Take into account any potential overloads or unexpected conditions that may occur during operation. Applying a service factor ensures the gearbox can handle occasional peak loads.
- Output Speed: Calculate the desired output speed of the gearbox. This is crucial for ensuring the gearbox meets the requirements of your application.
- Operating Conditions: Consider the environmental conditions in which the gearbox will operate, including temperature, humidity, and exposure to dust or chemicals.
- Mounting and Space: Evaluate the available space for mounting the gearbox and ensure it fits within the allotted dimensions.
- Shaft Configuration: Determine whether the gearbox requires a specific shaft configuration or if additional components such as couplings are needed.
- Application Type: Consider the type of application the gearbox will be used in, such as conveyor systems, agitators, mixers, or other specific applications.
- Load Characteristics: Analyze the load characteristics, including the type of load (constant, intermittent, shock), to ensure the gearbox can handle the load variations.
It’s essential to work closely with gearbox manufacturers or distributors who can provide technical support and assist in selecting the right size NMRV gearbox based on your specific application requirements.


editor by CX 2023-10-08
China Professional Nmrv Worm Gear Speed Reducer Gearbox with Aluminium Casting car gearbox
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$ 12/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Calculating Torque Requirements for an NMRV Gearbox
Calculating torque requirements for an NMRV gearbox involves several steps: Identify Input Torque, Calculate Output Torque, Consider Efficiency, and Add Safety Margin.
- Identify Input Torque: Determine the input torque required by the application, taking into account factors such as load, speed, and efficiency.
- Calculate Output Torque: Use the gear ratio of the NMRV gearbox to calculate the output torque needed to achieve the desired output speed.
- Consider Efficiency: Take into account the efficiency of the NMRV gearbox. The actual output torque will be influenced by the gearbox’s mechanical efficiency.
- Add Safety Margin: To ensure reliable performance and account for variations in operating conditions, it’s recommended to add a safety margin to the calculated torque requirements.
Formula to calculate output torque: Output Torque = Input Torque × Gear Ratio × Gearbox Efficiency
Keep in mind that torque requirements can vary based on the specific application and factors such as load type, duty cycle, and environmental conditions. Consulting with gearbox manufacturers or engineering experts can help ensure accurate torque calculations for your NMRV gearbox application.

Benefits of Using an NMRV Gearbox
NMRV gearboxes offer several advantages that make them a popular choice in various applications:
- Compact Design: NMRV gearboxes are compact and space-efficient, making them suitable for installations with limited space.
- High Efficiency: These gearboxes are designed for high efficiency, minimizing energy losses during power transmission.
- Smooth Operation: NMRV gearboxes provide smooth and reliable operation due to their precise gear meshing and design.
- Quiet Performance: The design and quality of NMRV gearboxes contribute to quiet operation, reducing noise levels in various applications.
- Cost-Effective: Their efficient manufacturing processes and durability make NMRV gearboxes a cost-effective choice for power transmission.
- Wide Ratio Range: NMRV gearboxes are available in a wide range of gear ratios, allowing users to select the most suitable option for their specific application needs.
- Corrosion Resistance: Many NMRV gearboxes are constructed using materials that offer corrosion resistance, enhancing their longevity and performance in harsh environments.
- Easy Installation: The compact and lightweight design of NMRV gearboxes makes them relatively easy to install and integrate into various systems.
- Low Maintenance: With proper lubrication and maintenance, NMRV gearboxes can have a long service life with minimal maintenance requirements.
- Versatility: NMRV gearboxes are versatile and can be used in a wide range of applications, from industrial machinery to conveyor systems.
These benefits collectively contribute to the popularity of NMRV gearboxes in industries where efficient and reliable power transmission is crucial.

NMRV Gearbox Ratios
NMRV gearboxes are available in a variety of gear ratios to suit different applications and torque requirements. The gear ratio determines the relationship between the input and output speeds of the gearbox. Commonly available ratios include:
- 5:1: This ratio provides higher output torque at a slower output speed compared to the input speed.
- 7.5:1: This ratio offers a balance between torque and speed.
- 10:1: With this ratio, the output speed is further reduced while increasing torque output.
- 15:1: This ratio is suitable for applications requiring higher torque output at the expense of speed.
- 20:1: This ratio maximizes torque output while significantly reducing output speed.
- 25:1: It provides even higher torque output at a further reduced output speed.
- 30:1: This ratio is ideal for applications demanding maximum torque at minimum output speed.
- 40:1 and higher: These ratios are used in applications with very high torque requirements and low output speed.
The choice of gearbox ratio depends on the specific application, desired output speed, and required torque. It’s important to select the right ratio to ensure optimal performance and efficiency in your machinery.


editor by CX 2023-09-28
China Standard CZPT Nmrv Gearbox with Worm Gear Hollow Shaft Motor Reducer bevel gearbox
Product Description
NMRV worm gearbox motor
NMRV series worm gear reducer:
Its structure,outline and installation dimensions as well as performance are same with that of
Europe an products,they are interchangeable,and the materials and machining process are advanced internationally.The product is featured by:
1.Low noise and temperature rise.
2.High bearing capability,smooth run and long service life.
3.ompact structure,samll volume,light weight,beautiful shape and easy to install.
4.Can run continuously under server environment,and has a good reliability.
GPHQ NMRV aluminum worm gearbox motor details:
| Type | GPHQ NMRV Worm Gear Speed Reducer /gearbox motor |
| Model: | NMRV25/30/ 40/ 50/ 63/ 75/ 90/110/130/150 |
| Input Power: | 0.06KW,0.09KW,0.12KW,0.18KW,0.22KW,0.25KW,0.37KW,0.55KW,0.75KW,1.1KW,1.5KW,2.2KW,4KW,5.5KW,7.5KW ,11KW,15KW |
| IEC Flange | 56B5,56B14,63B5,63B14,71B5,71B14,80B5,80B14,90B5,90B14,100B5, 100B14,112B5,112B14 132B5,160B5 |
| Ratio | 1: 7.5,10,15,20,25,30,40,50,60,80,100 |
| Material |
Housing: Die-Cast Aluminum Alloy for rv25-rv90 , die-cast cast iron for rv110 to rv150 |
| Worm Gear-brass+cast iron | |
| Worm-20CrMn Ti with carburizing and quenching, surface harness is 56-62HRC | |
| Shaft-chromium steel-45# | |
| Color: | Blue/Silver Or others if quantity is big |
| Packing: | Carton or plywood Case |
| Guarantee time : | 1 Year except except Man-made destruction |
| Usages: | Industrial Machine: Food Stuff, Ceramics,CHEMICAL,Packing,Dyeing,Woodworking,Glass. |
| shaft: | output CZPT shaft or output hollow shaft |
FAQ
1, Q:what’s your MOQ for ac gearbox motor ?
A: 1pc is ok for each type electric gear box motor
2, Q: What about your warranty for your induction speed reducer motor ?
A: 1 year ,but except man-made destroyed
3, Q: which payment way you can accept ?
A: TT, western union .
4, Q: how about your payment way ?
A: 100%payment in advanced less $5000 ,30% payment in advanced payment , 70% payment before sending over $5000.
5, Q: how about your packing of speed reduction motor ?
A: plywood case ,if size is small ,we will pack with pallet for less 1 container
6, Q: What information should be given, if I buy electric helical geared motor from you ?
A: rated power, ratio or output speed,type ,voltage , mounting way , quantity , if more is better.
| Application: | Motor, Machinery, Agricultural Machinery |
|---|---|
| Layout: | Right Angle |
| Hardness: | Hardened Tooth Surface |
| Step: | Single-Step |
| Ratio: | 7.5/10/15/20/25/30/40/50/60/80/100 |
| Gearbox Body: | Aluminum or Cast Iron |
| Customization: |
Available
| Customized Request |
|---|

Using NMRV Gearboxes in High-Load Applications
NMRV gearboxes can be used in moderate to high-load applications, but their load capacity is generally limited compared to some other gearbox types. They are best suited for applications with light to moderate loads, such as conveyor systems, packaging equipment, and small machinery. It’s important to consider the specific load requirements and consult with gearbox manufacturers or engineers to ensure the chosen NMRV gearbox can handle the intended application’s load demands.

Design Principles of an NMRV Gearbox
The design of an NMRV (worm gear) gearbox is based on key principles that enable its efficient and reliable operation:
- Worm Gear Mechanism: The core of an NMRV gearbox is the worm screw and worm wheel. The worm screw, typically cylindrical in shape, meshes with the teeth of the worm wheel. This configuration provides high gear reduction ratios.
- Helical Gearing: The worm screw is usually helical, allowing for smoother engagement with the worm wheel. Helical gearing reduces the sliding friction and noise associated with traditional straight-cut worm gears.
- Compact Design: NMRV gearboxes are designed to be compact, often with a right-angle configuration. This allows for efficient use of space in various applications.
- Alloy Construction: Many NMRV gearboxes are constructed from high-quality alloys, providing durability and corrosion resistance. The choice of materials ensures a gearbox capable of withstanding varying loads and environmental conditions.
- Bearing Support: Bearings support the rotating elements within the gearbox, reducing friction and ensuring smooth operation. Bearings are strategically placed to handle radial and axial loads.
- Sealing and Lubrication: NMRV gearboxes are equipped with effective sealing mechanisms to prevent the entry of contaminants and to retain lubricating oil. Proper lubrication is essential for reducing wear and enhancing gearbox efficiency.
- Efficient Power Transmission: The worm gear mechanism in NMRV gearboxes provides high gear reduction ratios, allowing for efficient power transmission while minimizing energy losses.
- Quiet Operation: The helical design of the worm screw and worm wheel contributes to quieter operation compared to traditional straight-cut worm gears.
- Wide Range of Ratios: NMRV gearboxes are available in various gear ratios, allowing users to select the appropriate configuration for their specific application needs.
The combination of these design principles results in an NMRV gearbox that offers efficient, reliable, and quiet power transmission for a wide range of industrial applications.

Working Principle of an NMRV Gearbox
An NMRV gearbox, also known as a worm gear reducer, operates based on a worm and worm wheel mechanism. Here’s how it works:
The gearbox consists of two main components: the worm (a screw-like shaft) and the worm wheel (a toothed wheel). The worm is driven by the input power source, while the worm wheel is connected to the output shaft.
As the worm rotates, its threaded shaft engages with the teeth of the worm wheel. The helical shape of the worm causes the teeth of the worm wheel to push against each other, resulting in a smooth and gradual transfer of motion. This mechanism provides the speed reduction and torque multiplication required for various applications.
One key characteristic of NMRV gearboxes is that the worm can turn the worm wheel, but the reverse is not possible due to the high friction generated by the helical threads. This feature prevents the output shaft from back-driving the input shaft, providing mechanical locking and enhancing safety and stability in applications.
The NMRV gearbox’s operation is continuous, and its simple design contributes to its reliability and efficiency. It is important to ensure proper lubrication to minimize wear and heat generation during operation.


editor by CX 2023-09-07
China Professional Spiral Bevel Helical Speed Gear Reducer Reduction Agriculture Nmrv Worm Winch Track Slewing Drive Agricultural Cycloidal Servo High Precision Planetary Gearbox cycloidal gearbox
Product Description
|
Process: |
CNC Machining, turning,milling, lathe machining, boring, grinding, drilling,broaching, stamping,etc… |
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Surface treatment: |
Clear/color anodized; Hard anodized; Powder-coating;Sand-blasting; Painting; |
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Nickel plating; Chrome plating; Zinc plating; Silver/gold plating; |
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Black oxide coating, Polishing etc… |
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Gerenal Tolerance:(+/-mm) |
Gear grade :7Gread (ISO) |
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Run Out:0.005mm |
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Roundness:0.001mm |
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ID/OD Grinding: 0.002 |
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Roughness : Ra 0.05 Rz 0.2 |
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Certification: |
IATF 16949, ISO140001 |
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Experience: |
16 years of machining products |
|
Packaging : |
Standard: carton with plastic bag protecting |
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For large quantity: pallet or wooden box as required |
|
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Lead time : |
In general:30-60days |
|
Term of Payment: |
T/T, L/C |
|
Minimum Order: |
Comply with customer’s demand |
|
Delivery way: |
Express(DHL,Fedex, UPS,TNT,EMS), By Sea, By air, or as required |
ZheZheJiang nlead Precision Co., Ltd. which focuses on CNC machining, including milling, turning, auto-lathe turning,holing,grinding, heat treatment from raw materials of bars, tube, extruded profiles, blanks of cold forging & hot forging, aluminum die casting.
We provide one-stop service, from professional design analysis, to free quote, fast prototype, IATF16949 & ISO14001 standard manufacturing, to safe shipping and great after-sales services.During 16 years, we have win lots of trust in the global market, most of them come from North America and Europe.
Now you may have steady customers, and hope you can keep us in the archives to get more market news.
Sunlead produce all kinds of machining parts according to customer’s drawing, we can produces stainless steel Turned parts,carbon steel Turned parts, aluminum turned parts,brass & copper turned parts.
Please feel free to send inquiry to us, and our professional sales manager will get back to you ASAP!
FAQ:
Q1: How can I get the samples?
A: If you need some samples to test, you should pay for the transportation freight of samples and our samples cost.
Q2: Can we have our marking,Logo or company name to be printed on your products or package?
A: Sure. Your marking,logo,or company name can be put on your products by Laser machine
Q3: How to order?
A: Please send us your purchase order by Email, or you can ask us to send you a Performa invoice for your order. We need to know the following information for your order.
1) Product information-Quantity, Specification ( Size, Material, Technological and Packing requirements etc.)
2) Delivery time required
3) Shipping information-Company name, Street address, Phone&Fax number, Destination sea port.
4) Forwarder’s contact details if there’s any in China.
Q4: When can you get the price?
We usually quote within 48 hours after we get your inquiry. If you are very urgent to get the price, please call us or tell us in your email so that we will regard your inquiry priority. Kindly note that if your inquiry is with more details then the price we quote will be more accurate.
Q5: How can you get a sample to check our quality?
After price confirmation, you can require for samples to check our quality.
Q6: What kind of files do we accept for drawing?
A: PDF, CAD,STP,STEP
Q7: What about the lead time for mass production?
Honestly, it depends on the order quantity and the season you place the order. Generally speaking,it would need about 30-60days to finish the sample.
Q8: What is our terms of delivery?
We accept EXW, FOB, CFR, CIF, DDU, DDP, etc. You can choose the 1 which is the most convenient or cost effective for you.
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Agricultural Machinery, Car |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Gear Position: | Internal Gear |
| Manufacturing Method: | as Requiried |
| Toothed Portion Shape: | as Requiried |
| Material: | Stainless Steel |
| Customization: |
Available
| Customized Request |
|---|

Installing an NMRV Gearbox
Installing an NMRV gearbox requires careful attention to ensure proper alignment and secure attachment. Here’s a general guide to the installation process:
- Prepare the Workspace: Ensure you have a clean and organized workspace with the necessary tools and equipment.
- Positioning: Place the NMRV gearbox in the desired position on your machinery, making sure it aligns with the input and output components.
- Alignment: Ensure that the input shaft of the gearbox is aligned with the driving shaft from the power source. Misalignment can lead to premature wear and reduced efficiency.
- Mounting: Securely mount the NMRV gearbox to the machinery frame using appropriate fasteners. Follow the manufacturer’s recommendations for torque specifications.
- Input Coupling: Connect the input shaft of the gearbox to the driving shaft using a suitable coupling. This coupling should be properly aligned to avoid unnecessary stress on the gearbox components.
- Output Coupling: Similarly, connect the output shaft of the gearbox to the driven component using an appropriate coupling.
- Lubrication: Before operation, make sure to fill the gearbox with the recommended lubricant to ensure proper gear meshing and reduce friction.
- Testing: Run the machinery briefly to check for any unusual noises, vibrations, or leaks. Make any necessary adjustments.
It’s crucial to follow the manufacturer’s installation guidelines and specifications to
Safety Precautions When Working with NMRV Gearboxes
Working with NMRV (worm gear) gearboxes requires careful attention to safety to prevent accidents and injuries. Here are some essential safety precautions to consider:
- Personal Protective Equipment (PPE): Always wear appropriate PPE, such as gloves, safety glasses, and protective clothing, to protect yourself from potential hazards.
- Lockout-Tagout: Before performing any maintenance or repairs, ensure the equipment is properly shut down and locked out to prevent accidental startup.
- Training: Only qualified personnel with proper training and experience should work on NMRV gearboxes to minimize the risk of errors and accidents.
- Proper Tools: Use the correct tools for the job and ensure they are in good condition. Incorrect tools can cause damage or pose safety risks.
- Adequate Lighting: Work in well-lit areas to enhance visibility and reduce the risk of accidents caused by poor lighting.
- Secure Work Area: Ensure the work area is clean, organized, and free from clutter to prevent tripping hazards and improve overall safety.
- Lubrication: When applying lubricants, be cautious to avoid spills. Clean up any spills immediately to prevent slips and falls.
- Follow Manufacturer Guidelines: Adhere to the manufacturer’s instructions, maintenance schedules, and safety guidelines when working on NMRV gearboxes.
- Electrical Safety: If the gearbox is electrically powered, ensure proper electrical safety protocols are followed during maintenance or repairs.
- Avoid Overloading: Do not exceed the recommended load capacities of the gearbox to prevent mechanical failures and potential hazards.
- Stay Clear of Moving Parts: Keep hands, clothing, and other objects away from moving parts to prevent entanglement or injury.
- Emergency Procedures: Be familiar with emergency shutdown procedures and know how to respond in case of an unexpected situation.
By following these safety precautions, you can help ensure a safe working environment and minimize the risk of accidents or injuries when working with NMRV gearboxes.
ensure a smooth and trouble-free installation process. Proper installation contributes to the longevity and reliable performance of your NMRV gearbox.


editor by CX 2023-08-31
China wholesaler Spiral Bevel Helical Speed Gear Reducer Reduction Agriculture Nmrv Worm Winch Track Slewing Drive Agricultural Cycloidal Servo High Precision Planetary Gearbox automatic gearbox
Product Description
Product Description
Company Profile
In 2571, HangZhou CZPT Machinery Co.,ltd was established by Ms. Iris and her 2 partners(Mr. Tian and Mr. Yang) in HangZhou city(ZHangZhoug province, China), all 3 Founders are engineers who have more than averaged 30 years of experience. Then because the requirements of business expansion, in 2014, it moved to the current Xihu (West Lake) Dis. Industrial Zone (HangZhou city, ZHangZhoug province, China).
Through our CZPT brand ND, CZPT Machinery delivers agricultural solutions to agriculture machinery manufacturer and distributors CZPT through a full line of spiral bevel gearboxes, straight bevel gearboxes, spur gearboxes, drive shafts, sheet metal, hydraulic cylinder, motors, tyre, worm gearboxes, worm operators etc. Products can be customized as request.
We, CZPT machinery established a complete quality management system and sales service network to provide clients with high-quality products and satisfactory service. Our products are sold in 40 provinces and municipalities in China and 36 countries and regions in the world, our main market is the European market.
Certifications
Our Factory
Sample Room
Why choose us?
1) Customization: With a strong R&D team, and we can develop products as required. It only takes up to 7 days for us to design a set of drawings. The production time for new products is usually 50 days or less.
2) Quality: We have our own complete inspection and testing equipment, which can ensure the quality of the products.
3) Capacity: Our annual production capacity is over 500,000 sets, also, we also accept small quantity orders, to meet the needs of different customer’s purchase quantities.
4) Service: We focus on offering high-quality products. Our products are in line with international standards and are mainly exported to Europe, Australia, and other countries and regions.
5) Shipment: We are close to HangZhou and ZheJiang ports, to provide the fastest shipping service.
Packaging & Shipping
FAQ
Q: Are you a trading company or manufacturer?
A: We’re factory and providing gearbox ODM & OEM services for the European market for more than 10 years
Q: Do you provide samples? is it free or extra?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
Q: How long is your delivery time? What is your terms of payment?
A: Generally it is 40-45 days. The time may vary depending on the product and the level of customization.
For standard products, the payment is: 30% T/T in advance,balance before shipment.
Q: What is the exact MOQ or price for your product?
A: As an OEM company, we can provide and adapt our products to a wide range of needs.
Thus, MOQ and price may greatly vary with size, material and further specifications; For instance, costly products or standard products will usually have a lower MOQ. Please contact us with all relevant details to get the most accurate quotation.
If you have another question, please feel free to contact us.
| Shaft: | as Required. |
|---|---|
| Certificate: | ISO9001 / SGS / BV |
| Output Torque: | 217~635n.M |
| Color: | as Required |
| Warranty: | 2 Years |
| OEM: | Accepable |
| Customization: |
Available
| Customized Request |
|---|

Using an NMRV Gearbox
An NMRV gearbox, also known as a worm gear reducer, is commonly used for various applications that require speed reduction, torque multiplication, and smooth power transmission. This type of gearbox offers several benefits:
- Compact Design: NMRV gearboxes have a compact and space-saving design, making them suitable for applications with limited installation space.
- High Gear Ratio: Worm gear reducers can achieve high gear ratios in a single stage, making them ideal for applications where a significant reduction in speed is needed.
- Quiet Operation: The meshing of the worm gear and worm wheel results in low noise levels during operation.
- Simple Operation: NMRV gearboxes have a simple design with fewer components, leading to ease of operation and maintenance.
- Reliable and Durable: Worm gear reducers are known for their reliability and durability, making them suitable for continuous and heavy-duty applications.
Common applications of NMRV gearboxes include:
- Conveyor systems
- Material handling equipment
- Industrial machinery
- Automated systems
- Food processing equipment
- Packaging machinery
Due to their versatility and ability to provide precise speed reduction, NMRV gearboxes are widely used in various industries to optimize the performance of different types of machinery and equipment.


editor by CX 2023-08-29
China Hot selling Nmrv Worm Gear Motor Gearbox Reducer RV Worm Transmission Gearbox Worm Reduction automatic gearbox
Product Description
Worm gearbox speed reducer electric motor dc are on sale with high quality for you
SMRV series worm-gear speed reducer :
It is a new-generation of products developed by our
company with combination of advanced technologyboth at home and abroad. The product is featured by:
1. Aluminium alloy die-cast casing for RV571, 030,040, 050, 063, 075, 090, light weight and non-rusting;cast iron casing for RV110, 130, 150.
2. Large output torque.
3. Stable transmission with lower noise.
4. High heat-radiating efficiency.
5. Elegant shape, small volume and durable serving life.
6. Suitable for omnibearing installation.
Product display
NMRV aluminum worm gearbox motor details:
You can choose the 1 type that you need form these product introction.
workshop and production equipment
Fand a market abroad
More than 50 countries and regions
If you have any question,please contact me.
HangZhou CZPT Machinery Co.,ltd is a company specialized in research, manufacture and service of speed gearbox. Ever since establishment, we have been persisting in technical innovation, advancing the techonology to our products while maintaining our strict quality controls. It is the reason that our products branding ”Xihu (West Lake) Dis.n” have enjoyed such successful global sales.
At present, our company mainly supplies 5 series products as RV worm gearbox, UDL series speed variator,PC series helical gear unit,G3 helical geared motor and SRC helical gearbox. The products are widely applied in the mechanical equipment field such as food and beverage,cement,package,chemical and dyeing, rubber and plastic, CNC machine tool,etc.
Our products have been processed ISO 9001 Quality System Certification and exported to Italy,Spain,Britain,Poland,Turkey.The USA and other European countries,earn the good reputation with our outstanding quality and service.
Customers first,customers satisfaction, excellent after sale service and incessant innovation are our tenet and motto. We will go all out to provide all the customers with high quality and service.
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Vertical Type |
| Layout: | Coaxial |
| Gear Shape: | Conical – Cylindrical Gear |
| Step: | Single-Step |
| Samples: |
US$ 105.6/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Lifespan of an NMRV GearboxThe lifespan of an NMRV (worm gear) gearbox can vary based on several factors, including the quality of manufacturing, proper maintenance practices, operating conditions, and the specific application it is used for. However, when designed, manufactured, and maintained properly, NMRV gearboxes can have a long and reliable service life. High-quality NMRV gearboxes that are made from durable materials, precisely machined, and assembled with care tend to have a longer lifespan. Regular maintenance, including proper lubrication, inspection, and addressing any signs of wear or damage, can significantly extend the gearbox’s operational life. The operating conditions in which the gearbox is used also play a role in determining its lifespan. Factors such as load, temperature, speed, and environment can impact the wear and tear on the gearbox components. It’s important to follow the manufacturer’s recommendations for maintenance intervals and procedures to ensure optimal performance and longevity of the NMRV gearbox. By adhering to these guidelines and addressing any issues promptly, users can expect an NMRV gearbox to provide reliable service for many years. Customized Request |
|---|

Working Principle of an NMRV Gearbox
An NMRV gearbox, also known as a worm gear reducer, op
Troubleshooting Abnormal Noises in an NMRV Gearbox
Abnormal noises from an NMRV gearbox can be troublesome and might indicate underlying issues. Follow these steps to troubleshoot and resolve the problem:
- Identify the Noise: Listen closely to the noise and determine if it’s a grinding, whining, or knocking sound.
- Check Lubrication: Insufficient or contaminated lubrication can lead to noises. Ensure the gearbox is properly lubricated.
- Inspect Gears: Examine the gear teeth for wear, damage, or misalignment.
- Look for Foreign Objects: Foreign objects inside the gearbox can cause noise. Clean and inspect the interior.
- Check Bearings: Worn or damaged bearings can be noisy. Inspect and replace them if necessary.
- Inspect Seals: Damaged seals can allow contaminants in, affecting performance. Replace damaged seals.
- Examine Housing: Ensure the gearbox housing is intact without cracks or misalignment.
- Review Load Conditions: Excessive loads can lead to noise. Ensure the gearbox isn’t overloaded.
- Check Mounting: Confirm the gearbox is properly mounted and aligned.
- Consult Guidelines: Refer to manufacturer guidelines for specific troubleshooting steps.
- Professional Help: If the issue persists, seek help from a professional technician or manufacturer.
Follow these steps to identify and rectify abnormal noises in your NMRV gearbox.
erates based on a worm and worm wheel mechanism. Here’s how it works:
The gearbox consists of two main components: the worm (a screw-like shaft) and the worm wheel (a toothed wheel). The worm is driven by the input power source, while the worm wheel is connected to the output shaft.
As the worm rotates, its threaded shaft engages with the teeth of the worm wheel. The helical shape of the worm causes the teeth of the worm wheel to push against each other, resulting in a smooth and gradual transfer of motion. This mechanism provides the speed reduction and torque multiplication required for various applications.
One key characteristic of NMRV gearboxes is that the worm can turn the worm wheel, but the reverse is not possible due to the high friction generated by the helical threads. This feature prevents the output shaft from back-driving the input shaft, providing mechanical locking and enhancing safety and stability in applications.
The NMRV gearbox’s operation is continuous, and its simple design contributes to its reliability and efficiency. It is important to ensure proper lubrication to minimize wear and heat generation during operation.


editor by CX 2023-08-17
China 0.12-2.2kw NMRV worm gear reducer gearbox worm box
Warranty: 3months-1year
Applicable Industries: Production Plant, Machinery Fix Stores, Food & Beverage Factory, Construction works , Other
Bodyweight (KG): 4 KG
Personalized help: OEM, ODM
Gearing Arrangement: Turbine
Output Torque: fifteen~1756Nm
Input Velocity: 1420rpm(4pole)
Output Pace: fourteen~280rpm
Ratio: 5, Tmaxtool New 58cc 18 Inch Handed Petrol Gasoline Chain saws Gasoline Yard Chainsaw for Cutting Wooden 7.5,ten,15,twenty,twenty five,30, Simplex 12B Steel Transmission Roller Chain Drive Sprocket Tooth Z11 Z12 Hub Sort Prebore No Keyway with Hardened Tooth 40,50,sixty,80,100
Shade: Blue or White
Material: Aluminum&iron cating
Software: IEC flange for mounting motor
Output Sort: CZPT or Hollow shaft,flange output
Certification: ISO9001:2008, WGZ3 drum condition equipment coupling with brake wheel forty five# steel Manufacturing unit Price Rigid shaft connector coupling company Scorching Sale CCC,CE
Packaging Specifics: normal export packing and wooden pallets packing
Generic template
Q: On preliminary installation, motor fails to commence up,what to do?
A: Probably lead to: Motor is improperly wired What to do: Validate that the motor is wired accurately. Likely result in: No output power from controller What to do: Evaluate voltage coming from the controller. Most likely trigger:Motor coil burned out What to do: Disassemble the motor and see if the coil is burned out. Could require to exchange the motor Q: Motor runs in the improper route,what to do?A: Very likely result in: Incorrect wiring What to do: Interchange the 2 motor leads. Q: Motor operates Alright but has a clicking noise,what to do?A: Most likely cause: Suspected tail speed handle coil What to do: Use a screwdriver to remove the tail screw and re-resolve the pace management coil

Advantages and disadvantages of worm gear reducer gearbox
If you are looking for a worm gear reducer gearbox, you have come to the right place. This article will cover the pros and cons of worm gear reducer gearboxes and discuss the different types available. You will learn about multi-head worm gear reducer gearboxes, hollow shaft worm gear reducer gearboxes as well as hypoid gear sets and motors.
Hollow shaft worm gear reducer gearbox
Hollow shaft worm gear reducer gearboxes are used to connect two or more rotating parts. They are available in single-axis and dual-axis versions and can be connected to various motor types. They can also have different ratios. The ratios of these gear reducer gearboxes depend on the quality of the bearings and assembly process.
Hollow shaft worm gear reducer gearboxes are made of bronze worm gears and cast iron hubs. The gears are lubricated with synthetic oil. They are lightweight and durable. They can be installed in various engine housings. Additionally, these gear reducer gearboxes are available in a variety of sizes. The range includes 31.5, 40, 50, 63, and 75mm models. Other sizes are available upon request.
In addition to worm gear reducer gearboxes, there are also helical gear reducer gearboxes. These reducer gearboxes can achieve very low output speeds. They are also suitable for all-around installations. In addition, the advantage of a multi-stage reducer gearbox is that it is more efficient than a single-stage gear reducer gearbox. They also feature low noise, low vibration, and low energy consumption.
Hollow shaft worm gear reducer gearboxes are generally less expensive and last longer. They are also a suitable replacement for solid shaft gearboxes for machines that require high torque without compromising strength. Typical gear arrangements include worm, spur, helical and bevel gears. Gear ratio is the ratio of input torque to output torque.
Multi-head worm gear reducer gearbox
The multi-head worm gear reducer gearbox is used to reduce the speed of the machine. It uses friction to hold the worm in place while transmitting power. These gears can also be called ground worms and hardened worm gears. They are useful in conveying systems and most engineering applications.
Multiple worm reducer gearboxes have a large number of gear ratios. These gear designs have a central cross-section that forms the front and rear boundaries of the worm gear. This design is a better choice than other worm gears because it is less prone to wear and can be used with a variety of motors and other electronics.
Adjustable multi-head worm gear reducer gearbox to reduce axial play. Usually, the backlash on the left and right sides of the worm is the same. However, if you need less backlash, you can buy a double lead worm gear. This design is ideal for precision applications requiring small clearances. The lead of the opposing teeth of the double worm gear is different from the right side, so the backlash can be adjusted without adjusting the center distance between the worm gears.
Worm gear reducer gearboxes are available from a variety of manufacturers. Many gear manufacturers stock these gears. Since the gear ratios are standardized, there is no need to adjust the height, diameter, or length of the shaft. Worm gears have fewer moving parts, which means they require less maintenance.
Hypoid Gear Set
Worm gears are the most common type of gear. While these gears are great for high-to-low ratios, hypoid gear sets are much more efficient in all ratios. This difference is due to higher torque density, better geometry and materials, and the way hypoid gears transmit force differently than worm gears.
Hypoid gear sets have curved helical teeth. This results in smooth gear meshing and little noise. This is because the hypoid gears start to slowly contact each other, but the contact progresses smoothly from tooth to tooth. This reduces friction and wears, thereby increasing the efficiency of the machine.
The main advantages of hypoid gears over worm gears are higher torque capacity and lower noise levels. Although their upfront cost may be higher, hypoid gears are more efficient than worm gears. They are able to handle higher initial inertia loads and can deliver more torque with a smaller motor. This saves money in the long run.
Another advantage of hypoid gears is the lower operating temperature. They also do not require oil lubrication or ventilation holes, reducing maintenance requirements. The hypoid gear set is maintenance-free, and the grease on the hypoid gear set lasts for decades.
Hypoid gear motor
A hypoid gear motor is a good choice for a worm gear reducer gearbox as it allows for a smaller motor and more efficient energy transfer. In fact, a 1 hp motor driving a hypoid reducer gearbox can provide the same output as a 1/2 hp motor driving a worm reducer gearbox. A study by Agknx compared two gear reduction methods and determined that a hypoid gear motor produces more torque and power than a worm reducer gearbox when using a fixed reduction ratio of 60:1. The study also showed that the 1/2 HP hypoid gear motor is more energy efficient and reduces electricity bills.
Worm reducer gearboxes run hotter than hypoid gears, and the added heat can shorten their lifespan. This can cause components to wear out faster, and the motor may require more frequent oil changes. In addition, hypoid gear motors are more expensive to manufacture.
Compared to worm gears, hypoid gears offer higher efficiency and lower operating noise. However, they require additional processing techniques. They are made of bronze, a softer metal capable of absorbing heavy shock loads. Worm drives require work hardening and are less durable. Operating noise is reduced by up to 30%, and hypoid gears are less prone to breakage than bevel gears.
Hypoid gear motors are prized for their efficiency and are used in applications requiring lower torque. A unique hypoid tooth profile reduces friction. In addition, hypoid gear motors are ideal for applications where space is limited. These geared motors are often used with pulleys and levers.
R series worm gear reducer gearbox
R series worm gear reducer gearboxes have a variety of characteristics that make them ideal for different applications. Its high rigidity cast iron housing and rigid side gears are designed for smooth drive and low noise. It also features high load capacity and long service life. Additionally, it can be assembled into many different configurations as required.
High efficiency, large output torque and good use efficiency. It comes in four basic models ranging from 0.12KW to 200KW. It can be matched with right angle bevel gearbox to provide large speed ratio and high torque. This combination is also suitable for low output and high torque.
AGKNX Electric Worm Gear reducer gearbox
AGKNX Electric worm gear reducer gearboxes are available with NEMA C-face mounting flanges for a variety of motors. These reducer gearboxes feature double lip oil seals, an aluminum alloy housing, and two bearings on the input and output shafts. These reducer gearboxes are rust-proof and have epoxy paint on the inside. They are available in a variety of ratios, from 7.5:1 to 100:1.
Worm reducer gearboxes are one of the most cost-effective and compact gears. These reducer gearboxes increase output torque while reducing input speed. AGKNX Electric’s worm gear reducer gearboxes are pre-installed with Mobil SHC634 Synthetic Gear Oil. These reducer gearboxes have an internal oil gallery guide to protect the shaft. They also have a one-piece cast iron housing.
AGKNX Electric Corporation is the leading independent distributor of electric motors in the United States. They have eight strategically located warehouses, enabling them to ship most orders on the same day. They offer motors of various sizes up to 20,000 hp. They also offer a variety of motor controls and variable speed drives.

editor by Cx 2023-06-28
China 42mm 24V right angle worm gear motor dc bldc motor with gearbox reducer ratio (10,20,25,50) worm gearbox assembly
Warranty: 1year
Design Amount: FG42
Utilization: Enthusiast, Residence Equipment, Beauty instrument, Sensible House
Type: Equipment MOTOR, brushless dc motor with gearbox
Torque: .1NM
Design: Everlasting Magnet
Commutation: Brushless
Protect Attribute: Explosion-evidence
Pace(RPM): 3 keyless shaft locking system Coupling Manufacturer precision high electrical power transmission Hot Sale twenty,25,fifty)
Parameters
| Brand Name | Ican |
| Model Number | 42FGELU- 42BLF0330 -24 |
| Usage | BOAT, Vehicle, Property Appliance, Beauty instrument, Sensible Property |
| Certification | CE, RoHS |
| Commutation | Brushless |
| Protect Function | Explosion-proof |
| Rated Pace(RPM) | 3000rpm |
| Continuous Current(A) | 2A |
| Efficiency | IE 1 |
| Type | brushless dc motor with gearbox |
| Rated torque | 0.1N.m |
| Rated power | 30W |
| Rated Voltage | 24V |
Solution photographs
Gear motor parameters and drawings
| Model | Equipment ratio | Output torque Max.(NM) | Rated rotational speed(RPM) | Matched Driver |
| 42FGE03U-42BLF0330-24-01A | 1:3 | .27 | 1000 | BLD70 BLD120A |
| 42FGE04U-42BLF0330-24-01A | 1:four | .36 | 750 | |
| 42FGE05U-42BLF0330-24-01A | 1:5 | .forty five | 600 | |
| 42FGE07U-42BLF0330-24-01A | 1:seven | .63 | 428.six | |
| 42FGE10U-42BLF0330-24-01A | one:10 | .nine | 300 | |
| 42FGE20U-42BLF0330-24-01A | one:twenty | 1.6 | 150 | |
| 42FGE25U-42BLF0330-24-01A | one:25 | two | one hundred twenty | |
| 42FGE50U-42BLF0330-24-01A | 1:fifty | 4 | sixty |
| Product | Gear ratio | Output torque Max.(NM) | Rated rotational velocity(RPM) | Matched Driver |
| 42FGE03U-42BLF0630-24-01A | one:3 | .fifty four | a thousand | BLD70 BLD120A |
| 42FGE04U-42BLF0630-24-01A | 1:4 | .seventy two | 750 | |
| 42FGE05U-42BLF0630-24-01A | 1:5 | .9 | 600 | |
| 42FGE07U-42BLF0630-24-01A | 1:7 | 1.26 | 428.6 | |
| 42FGE10U-42BLF0630-24-01A | one:ten | 1.8 | 300 | |
| 42FGE20U-42BLF0630-24-01A | one:20 | three.two | one hundred fifty | |
| 42FGE25U-42BLF0630-24-01A | 1:twenty five | four | a hundred and twenty | |
| 42FGE50U-42BLF0630-24-01A | one:fifty | 8 | 60 |
| Model | Flange | Output energy(W) | Voltage(VDC) | Revolving speed(RPM) | Rated torque(NM) | Motoer duration L(mm) |
| 42BLF0330 | 42mm | thirty | 24 | 3000 | .1 | forty nine |
| 42BLF0630 | 42mm | 62 | 24 | 3000 | .2 | 68 |
| SERIE | STAGE | RATIO | BACKLASH | EFFICENCE | NOISE |
| 42FG | 1 | 1:3 1:4 1:5 1:10 | ≤15 arcmin | 96% | ≤40db |
| 2 | 1:20 1:twenty five 1:fifty | ≤ C45 steel Motorcycle sprocket CDT for Honda twenty arcmin | 94% | ≤40db | |
| 57FG | 1 | 1:4 1:5 1:7 1:ten | ≤30 arcmin | 90% | ≤45db |
| 2 | 1:twenty 1:25 1:fifty | ≤45 arcmin | 80% | ≤45db | |
| 86FG | 1 | 1:3 1:4 1:5 1:7 1:10 | ≤10 arcmin | 95% | ≤45db |
| two | 1:20 1:35 1:fifty | ≤15 arcmin | ninety% | ≤45db |
Firm Information
one. Can you make the gearbox or gearmotor with custom made requirements?Of course. We have strong R& Solid crank arm metal link and plastic chain protect Scorching promoting bicycle sprockets D capacity, also a excellent expression of engineers, each of them have a lot of perform many years knowledge.
2. Do you give the samples?Sure. Our organization can provide the samples to you.
3.Do you provide engineering support?Yes. Our company have robust R&D functionality, we can give engineering assist if you require.
four. why must you get from us not from other suppliers?Specialist 1-to-1 motor custom-made . The world’s massive organization of option for high high quality suppliers . ISO9001:2008 high quality administration method certification, by means of the CE, ROHS certification.
5. How to ship to us?We will ship the samples to you in accordance to the DHL or UPS or FEDEX etc account you give.
6. How can I know the merchandise is suited for me?Frist, you want to provide us the more information data about the item. We will suggest the product to you in accordance to your prerequisite of specification. Soon after you validate, we will prepare the samples to you. also we will offer you some great developments in accordance to your solution use.

What is a worm gear reducer gearbox?
The worm gear reducer gearbox is used to change the output speed of the mechanical device. It consists of worm and helical gears mounted on the input side of the equipment. In some cases, this gear reduction system can be multi-stage, enabling extremely low output speeds. It has the advantages of low energy consumption and low vibration.
Hollow shaft worm gear reducer gearbox
Worm gear reducer gearbox is an effective device to reduce the speed of mechanical equipment. The use of hard steel or non-ferrous metals for the worm increases its efficiency. Worms made of hard steel generate more heat than worms made of mild steel. Different thermal expansion results in gaps between mating surfaces. Despite its many benefits, worm gear reducer gearboxes are prone to oil leakage, which can be a problem for a number of reasons.
Hollow shaft worm gear reducer gearboxes are available in different gear ratios and are compatible with many motor types. Some are available in dual-axis and single-axis configurations and can be mounted horizontally or vertically. They are also available in intermediate ratios, as well as four- and five-speed transmission types. They can also be connected with additional output shafts.
Another type of worm gear reducer gearbox is the multi-stage variety. This gear reducer gearbox has multiple stages, enabling it to reduce speed with extremely low output speeds. In addition to the large transmission ratio, the multi-stage gear reducer gearbox has low noise, low vibration and low energy consumption.
Worm gear reducer gearboxes offer space-saving solutions as well as increased torque. Agknx Gearbox offers worm gear reducer gearboxes that solve common deceleration problems. The company has also expanded its product range into the bathroom market. Compared with the standard gearbox, the worm gear reducer gearbox has the characteristics of lower price and better torque output.
Agknx worm gear
The Agknx type worm gear reducer gearbox has multi-tooth line contact and is widely used in heavy machinery. These gears are characterized by a high load-carrying capacity, but they are highly sensitive to misalignment and manufacturing errors. However, by employing point contact, these gears can be made more reliable and can withstand higher loads.
Another major advantage of the Agknx worm gear is its high load capacity. The tooth profile design of the gears has a high relative slip ratio, which improves efficiency and load capacity. In addition, the large angle between the sliding direction and the contact line provides a low coefficient of friction. The Agknx worm gear also features premium carburized steel and phosphor bronze castings for exceptional durability. In addition, the tooth profile is very precise, the operation is quiet, and the speed fluctuation is small.
Agknx worm gear reducer gearboxes are designed to operate for up to ten hours per day with an even load. The design of this worm gear reducer gearbox stems from Sumitomo Heavy Industries’ extensive experience in gear reducer gearboxes. The smooth surface texture and precise tooth profile of the gears ensure that the gears can withstand high loads without damaging the lubricant film. In addition, Agknx worm shafts are specially designed to have the right stiffness.
Agknx worm gear reducer gearboxes are designed to maximize load capacity while minimizing energy consumption. Its fully meshed teeth reduce surface pressure on the worm gear teeth and increase load capacity.
Double throat worm gear
There are a few things to consider when choosing a dual-throat worm gear. First, the diameter of the root circle must match the circle pitch of the larger gear. This measurement is usually done by measuring the distance between adjacent teeth. Alternatively, the worm’s normal module can be used. It is the value entered in the worm module dialog. In addition, the axial pitch of the worm should be equal to the pitch diameter of the circular pitch.
Double-throat worm gears are an excellent choice for heavy and heavy-duty applications. The design of this worm gear is ideal for heavy-duty applications as it provides a tighter connection between the worm and the gear. It is also more compact than other types of gear and is comparable to a fine-pitch lead screw.
The efficiency of a double-throat worm gear depends on the material of the gear and worm. Typically, gears are made of case-hardened steel, while worm gears are made of bronze or cast iron. In some cases, a combination of cast iron and bronze can be used.
The deflection of the worm shaft is also affected by the tooth parameters. Tooth height, pressure angle, and size factors all affect the deflection of the worm shaft. In addition, the number of worm threads is another important parameter that affects the deflection of the worm shaft.
Double-throat worm gears are commonly used in industrial applications where high drive reduction is required. The worm has a concave and internal tooth structure that can be adjusted to achieve various ratios. Worm gears and worm gear assemblies must be properly mounted on their shafts to prevent back drive.
Brass worm gear
The basic working principle of the brass worm gear reducer gearbox is the same as that of the traditional worm gear reducer gearbox. Its axial pitch must be equal to the circumferential pitch of the larger gear. The single-thread design advances one tooth per revolution, while the double-thread design advances two teeth. The threads on the worm are either left-handed or right-handed. The lead of a worm is the distance a point on the thread of the worm moves in one revolution. The lead angle is the angle tangent to the pitch of the cylinder and the axis of the worm.
Double-thread worm gear reducer gearboxes are best for heavy loads. It provides the tightest connection between the worm and the gear. Assembly of the worm gear requires precise mounting. The keyway installation method involves drilling a square cut in the gear hole. This prevents the worm from rotating on the shaft and helps transmit torque. Then use the set screw to secure the gear to the hub.
The large fuel tank helps keep the worm gear clean and reduces heat. It also provides lubrication for extended life. Worm gear reducer gearboxes with oil reservoirs provide a lubricated environment and low-friction surfaces. Additionally, it offers multi-position installation flexibility. Additionally, its housing is cross-milled for precise alignment. It also features internal baffles for leak-free ventilation.
I260 series worm gear reducer gearboxes are one-piece iron casings with solid or hollow output shafts and tapered roller bearings. This gear reducer gearbox is designed for low to medium-horsepower applications. This gear reducer gearbox is a cost-effective option with low initial cost, the high gear ratio, and high torque in a compact package. Also, it is more shock resistant than other gear reducer gearboxes.
Brass worm gear
Brass worm gear reducer gearbox is a reduction gear. This type of gear can provide a lot of reduction in a small package. This type of gear reducer gearbox also has the ability to generate high torque. However, it is important to understand that this gear reducer gearbox has thermal limitations, which reduce its efficiency. The choice of lubricant for this gear reducer gearbox is very flexible. However, being a yellow metal, it is important to remember that the lubricant must be non-reactive.
Worm gears are used in many consumer and industrial applications and have high reduction ratios. These gears are produced in various configurations and sizes. Worm gears are similar to spur gears but have non-parallel shafts. Worm gears are also suitable for applications requiring low output speed but high torque.
Worm gears have some distinct advantages over other gears. First, unlike standard gears, the worm rotates in a worm-like motion. This mechanism prevents reverse movement. This is because the lead angle of the worm gear is small. Additionally, the worms self-lock, helping to prevent reversal. However, this mechanism is not entirely reliable. Worm gears can be found in elevators, fishing reels, sprockets, and automotive power steering.
Another advantage of worm gears is that they are easy to manufacture. The rationale behind this design is to have two mutually perpendicular axes. Then, two or more threads are added to the worm gear. The common tangent between these two shafts intersects the pitch line of the worm gear shaft. This is the basis of transfer speed.


editor by Cx 2023-06-21