Product Description
PROFESSIONAL MANUFACTURE
-- SINCE 1995
Reduction RV Worm Gear Electric Motor Speed Reducer Gearbox
Chinese electric motor speed reducer is widely used in mining machinery, chemical industry,steel metallurgy, light
industry,environmental protection, paper making, printing, lifting transport, food industry and so on.
Main Series Product: R series helical gear motor reducer, K series spiral bevel gear reducer, NGW, P series planetary gear reducer, H B series helical gearbox, Z (ZDY, ZLY, ZSY, and ZFY) serial hard tooth surface cylindrical gearbox reducer, D (DBY and DCY) serial hard tooth surface cone gear reducer, cycloidal speed reducer, etc. Meanwhile, map sample processing business can be undertaken.
Product Description
It realized serialization and modularization with compact structure and wide range of transmission ratio.
The transmission efficiency reach up to 96%.
The gear processed by Carburizing, Nitriding & Grinding.
High efficiency, superior performance with less energy consumption High precision gear, steady transmission, low noise, large load capacity, long service life.
Support various of installation method.
Product Parameters
|
Size |
NMRV25 |
NMRV30 |
NMRV40 |
NMRV50 |
NMRV63 |
NMRV75 |
NMRV90 |
NMRV110 |
NMRV130 |
|
Flange Type |
56B14 |
63B5 |
71B5 |
80B5 |
90B35 |
100/112B35 |
100/112B35 |
132B35 |
132B35 |
|
|
63B14 |
63B5 |
71B5 |
80B5 |
90B35 |
90B35 |
100/112B35 |
100/112B35 |
|
|
|
170 |
|
63B5 |
71B5 |
80B5 |
80B5 |
90B35 |
90B35 |
Model selection for washing machine Gear Box Transmission:
Closely using the ideal reduction ratio.
Reduction ratio = servo motor speed / reducer output shaft speed
Torque calculation: Torque calculation is very important for the life of reducer, and pay attention to whether the maximum torque value (TP) of acceleration exceeds the maximum load torque of the reducer.
The applicable power is usually the applicable power of the servo models on the market, the applicability of the reducer is very high, the working coefficient can be maintained above 1.2, but the choice can also be based on their own needs to decide. industrial helical gearbox. Robot Arm Gear Reducer Nmrv Transmission Worm Gearbox.
Detailed Photos
Chinese Speed Reducer/industrial helical gearbox is a mechanical transmission in many fields of the national economy. The product categories covered by the industry include all kinds of gear reducer, planetary gear reducer and worm reducer, as well as various special transmission devices such as speed increasing device, speed control Devices, including various types of flexible transmission devices, such as compound transmission. Products and services in the field of metallurgy, nonferrous metals, coal, building materials, ships, water conservancy, electricity, construction machinery and petrochemical industries.
In all fields of national economy and national defense industry, gearbox products have a wide range of applications. Food light industry, electric machinery, construction machinery, metallurgy machinery, cement machinery, environmental protection machinery, electronic appliances, road construction machinery, water conservancy machinery, chemical machinery, mining machinery, conveyor machinery, building materials machinery, rubber machinery, petroleum machinery and other industries have strong demand of Reducer products.
Working principle of gear reducer :
When the output speed of the motor of the gear reducer is input from the driving shaft, the small gear of the reducer will move. The large gear is linked with the small gear, so the movement of the small gear will drive the movement of the large gear. The number of teeth is more than the number of teeth on the pinion, so the speed of the big gear will be slower than that of the pinion, and then output through the output shaft of the big gear, thus playing the role of output deceleration.
Packaging & Shipping
Application
| Driven machines | |||
| Waste water treatment | Thickeners,filter presses,flocculation apparata,aerators,raking equipment,combined longitudinal and rotary rakes,pre-thickeners,screw pumps,water turbines,centrifugal pumps | Dredgers | Bucket conveyors, dumping devices, carterpillar travelling gears, bucket wheel excavators as pick up, bucket wheel excavator for primitive material, cutter head, traversing gears |
| Chemical industry | Plate bending machines, extruders, dough mills, rubbers calenders, cooling drums, mixers for uniform media, agitators for media with uniform density, toasters, centrifuges | Metal working mills | plate tilters, ingot pushers, winding machines, cooling bed transfer frames, roller straigheners, table continuous intermittent, roller tables reversing tube mills, shears continuous, casting drivers, reversing CHINAMFG mills |
| Metal working mills | Reversing slabbing mills. reversing wire mills, reversing sheet mills, reversing plate mill, roll adjustment drives | Conveyors | Bucket conveyors, hauling winches, hoists, belt conveyors, good lifts, passenger lifts, apron conveyors, escalators, rail travlling gears |
| Frequency converters | Reciprocating compressors | ||
| Cranes | Slewing gears, luffing gears, travelling gears, hoisting gear, derricking jib cranes | Cooling towers | Cooling tower fans, blowers axial and radial |
| Cane sugar production | Cane knives, cane mills | Beet sugar production | Beet cossettes macerators, extraction plants, mechanical refrigerators, juice boilers, sugar beet washing machines, sugar beet cutter |
| Paper machines | Pulper drives | Cableways | Material ropeways, continuous ropeway |
| Cement industry | Concrete mixer, breaker, rotary kilns, tube mills, separators, roll crushers | ||
Company Profile
Established in 1995 , HangZhou Boji Machinery is a professional manufacturer and exporter that is concerned with the design, development and production of Gearbox Speed Reducer. We are located in HangZhou of ZheJiang Province, with convenient transportation access. With our own brand "TianQi", all of our products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.
Our company possesses complete machining center, lathe, gear shaping machine, gear milling machine, gear grinding machine and assembling lines. Our well-equipped facilities and excellent quality control throughout all stages of production enables us to guarantee total customer satisfaction.
Besides, In 2005,we attained ISO9001 certification. As a result of our high quality products and outstanding customer service, we have gained a global sales network CHINAMFG South America, Saudi Arabia, Vietnam, Pakistan, Philippines, South Africa and other countries and regions.
With rich export experience, high quality products, competitive prices, good service and in-time delivery, we certain that we can meet all of your requirement and exceed your expectations. Our feature is bright with new cooperative relationships with companies from all over the world. We look CHINAMFG to speaking with you to future discuss how we can be of service to you.
FAQ
1. Who are we?
We are the Factory, with over 25 years of production experience, based in ZheJiang , China, start from 1995,sell to Domestic Market(50.00%),Mid East(10.00%),Southeast Asia(10.00%),Western Europe(5.00%),South America(5.00%),Eastern Europe(5.00%),Eastern Asia(5.00%),North America(3.00%),Africa(2.00%),Southern Europe(2.00%),South Asia(2.00%),Central America(1.00%).
2. Can you customize according to our requirements?
Yes, we can design nonstandard products according to customer's drawing and sample.
3.What can you buy from us?
speed reducer,gearbox,gear motor,pump,crusher
4. Why should you buy from us not from other suppliers?
Founded in 1995, with over 20 years of production experience and credibility. With professional engineer team, advanced technology production and skilled workers.Specialized in the production of reducer. Map sample processing business can be undertaken.
5. What services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,DDP,DDU,Express Delivery;
Accepted Payment Currency:USD,EUR,JPY,CAD,AUD,HKD,GBP,CNY,CHF;
Accepted Payment Type: T/T,L/C,Credit Card,PayPal,Western Union,Cash;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Korean,Hindi,Italian
|
Shipping Cost:
Estimated freight per unit. |
To be negotiated |
|---|
| Application: | Motor, Machinery, Manufacturing Plant |
|---|---|
| Function: | Distribution Power, Change Drive Torque, Change Drive Direction, Speed Changing, Speed Reduction, Transmission |
| Layout: | Worm Gear |
| Samples: |
US$ 20/Piece
1 Piece(Min.Order) | Order Sample RV Worm Gear Electric Motor Speed Reducer Gearbox
|
|---|
| Customization: |
Available
| Customized Request |
|---|
Is it Possible to Reverse the Direction of a Worm Gearbox?
Yes, it is possible to reverse the direction of a worm gearbox by changing the orientation of either the input or output shaft. However, reversing the direction of a worm gearbox can have some implications that need to be considered:
- Efficiency: Reversing the direction of a worm gearbox can potentially affect its efficiency. Worm gearboxes are typically more efficient in one direction of rotation due to the design of the worm and worm wheel.
- Backlash: Reversing the direction of rotation might lead to increased backlash or play in the gearbox, which can impact precision and smooth operation.
- Lubrication: Depending on the gearbox's design, reversing the direction could affect lubrication distribution and lead to uneven wear on the gear teeth.
- Load: Reversing the direction might also impact the gearbox's load-carrying capacity, especially if it's designed for predominantly one-way operation.
- Noise and Vibration: Direction reversal can sometimes result in increased noise and vibration due to changes in gear engagement and meshing behavior.
If you need to reverse the direction of a worm gearbox, it's advisable to consult the gearbox manufacturer's guidelines and recommendations. They can provide insights into whether the specific gearbox model is suitable for reversible operation and any precautions or adjustments needed to ensure proper functioning.
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.
Can a Worm Gearbox Provide High Torque Output?
Yes, a worm gearbox is capable of providing high torque output due to its unique design and principle of operation. Worm gears are known for their high torque multiplication capabilities, making them suitable for applications that require significant torque transfer.
The torque output of a worm gearbox is influenced by several factors:
- Lead Angle: The lead angle of the worm affects the mechanical advantage of the gear system. A larger lead angle can result in higher torque output.
- Worm Diameter: A larger diameter worm can offer increased torque output as it provides more contact area with the gear.
- Gear Ratio: The gear ratio between the worm and the gear determines the torque multiplication factor. A higher gear ratio leads to higher torque output.
- Lubrication: Proper lubrication is essential to minimize friction and ensure efficient torque transmission.
- Material and Quality: High-quality materials and precision manufacturing contribute to the gearbox's ability to handle high torque loads.
Due to their ability to provide high torque output in a compact form factor, worm gearboxes are commonly used in various industrial applications, including heavy machinery, construction equipment, conveyor systems, and more.
editor by CX 2023-09-18
China Hot selling PC63 PC71 PC80 PC90 Prestage Middle Gearbox Between Nmrv Worm Reducer and Electric Motor cvt gearbox
Product Description
PC63 PC71 PC80 PC90 Prestage Middle Gearbox Between NMRV Worm Reducer and Electric Motor
Features:
1. Compact structure and simple assembly;
2. Stable and safe, long lifetime, universal;
3. Low noise, good sealing performance, high efficiency;
4. Convenient to be mounted with worm gearboxes & motors as to achieve the required higher speed ratio.
Product photo:
Specification for PC gearbox:
| Product Name | ANG Pre-stage helical reducer |
| Model | PC063 / PC071 / PC080 / PC090 |
| Ratio | 2.42-3 |
| Motor power/poles | 0.09-2.20kw(2P,4P,6P,8P) |
| Output shaft diameter | Φ11,Φ14,Φ19,Φ24,Φ28 |
| Code of installation form | B3,B8,B6,B7,V5,V6 |
| Color | RAL5571, RAL9006 or customized |
FAQ
Q: Can you make the gearbox with customization?
A: Yes, we can customize per your request, like color, shaft, material, etc.
Q: Do you provide samples?
A: Yes. 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 product need 5-30days, a bit longer for customized products.
Q: Do you provide technology support?
A: Yes. Our company have design and development team, we can provide technology 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 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: | Gearbox |
|---|---|
| Hardness: | Hardened Tooth Surface |
| Installation: | Horizontal Type |
| Layout: | Parallel Shaft |
| Gear Shape: | Cylindrical Gear |
| Step: | Single-Step |
| Samples: |
US$ 100/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|
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 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.
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.
editor by CX 2023-09-18
China high quality OEM RV040 RV050 RV063 Electric Motor with Gear Box Gearbox Nmrv Worm Gear Reducer manufacturer
Product Description
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 |
Product Description
Worm Gear Speed Reducer.
Worm gear speed reducers are popular for their flexibility and efficiency, because they can show the best deceleration capacity in the smallest space and are typically applied in transmissions with low speed and high torque.
The worm speed reducer can also be easily mounted with various accessories like torque arms, different types of flanges, shafts and so on.
We attach much importance to the details of the products. The housing of our worm gearbox is made of aluminum alloy or cast iron,the worm is made of carburized 20Cr, and the suppliers of raw materials are rigorously screened, thus to ensure our products are of high quality, long service life and low noise.
Sihai is a professional manufacturer of speed reducers that can provide you with both single-stage worm gear reducer and two-stage worm gear reducer, as well as customized gearboxes according to your requirement.
Details
Multiple inputs and outputs
00:00
00:00
FAQ
Q1.How to choose a gearbox which meets our requirement?
A1. You can provide the technical information of output speed,motor power,motor parameter,output torque,equipment connection mode etc.Or,you can refer to our catalogue and confirm with me.
Q2. How is your price? Can you offer any discount?
A2: We will give the best price we can base on your needs and the quantities.
Q3. Do you offer any visiting?
A3: Yes! Welcome!Notify me in advance.
Q4. When is the best time to contact you?
A4: Any time, we will reply you as soon as possible.
Q5. How long will it take for the lead time?
A5: At the time we agreed
| Application: | Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car, Motor, Machinery, Marine, Agricultural Machinery, Building Material Shops |
|---|---|
| Function: | Speed Changing, Speed Reduction, Speed Changing, Speed Reduction |
| Layout: | Gearbox, Gearbox |
| Hardness: | Gearbox, Gearbox |
| Installation: | Gearbox, Gearbox |
| Step: | Gearbox, Gearbox |
| Customization: |
Available
| Customized Request |
|---|
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 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.
Lubrication Requirements for a Worm Gearbox
Lubrication is crucial for maintaining the performance and longevity of a worm gearbox. Here are the key considerations for lubricating a worm gearbox:
- Type of Lubricant: Use a high-quality, high-viscosity lubricant specifically designed for worm gearboxes. Worm gearboxes require lubricants with additives that provide proper lubrication and prevent wear.
- Lubrication Interval: Follow the manufacturer's recommendations for lubrication intervals. Regularly check the gearbox's temperature and oil condition to determine the optimal frequency of lubrication.
- Oil Level: Maintain the proper oil level to ensure effective lubrication. Too little oil can lead to insufficient lubrication, while too much oil can cause overheating and foaming.
- Lubrication Points: Identify all the lubrication points on the gearbox, including the worm and wheel gear surfaces. Apply the lubricant evenly to ensure complete coverage.
- Temperature: Consider the operating temperature of the gearbox. Some lubricants have temperature limits, and extreme temperatures can affect lubricant viscosity and performance.
- Cleanliness: Keep the gearbox and the surrounding area clean to prevent contaminants from entering the lubricant. Use proper filtration and seals to maintain a clean environment.
- Monitoring: Regularly monitor the gearbox's temperature, noise level, and vibration to detect any signs of inadequate lubrication or other issues.
Proper lubrication will reduce friction, wear, and heat generation, ensuring smooth and efficient operation of the worm gearbox. Always refer to the manufacturer's guidelines for lubrication specifications and intervals.
editor by CX 2023-09-15