China best Udl Series Foot Mounted Light Weight Aluminium Alloy Reduction Stepless Small Variable Speed Reducer Gearbox Variator

Product Description

Udl Series Foot Mounted Light Weight Aluminium Alloy Reduction Stepless Small Variable Speed Reducer Gearbox Variator

1. Housing: Aluminium alloy(udl series) cast iron(ud series)
2. Input configurations: 
Equipped with electric motors
IEC-normalized motor flange
3. Output configurations: 
CHINAMFG shaft output
CHINAMFG shaft output with output flange
Foot mounted – udl002b3~ud050b3
Flange mounted – udl002b5~ud050b5
1. Adjustable speed span can be accurate to 0.5~1 r/min
2. Can be combined with other types of gearboxes (such as r series, k series, f series, s series, RV series, wb series cycloid reducers)
3. Compact structure
4. Clockwise and counterclockwise rotation

B3 Foot-mounted
B5 Flange-mounted  




Please click here for more types!


Our Services

With all our activities DNV-ISO 9001, SGS -certified, we stand for top-quality service. Entrusting your gearboxes to the care of our Services.

Help protect your gearbox from wear and grinding, SGR gearbox converts torque reliably and effi­ciently.
We customize our CHINAMFG planetary gear units, double enveloping worm gearbox, helical gear motor, modular design helical gear unit, worm gearbox, cycloidal gearbox etc to fit your application and meet your needs. 

These features enable a reliable and safe service life of over 200 000 operational hours. 

Our customers have been placing their trust in CHINAMFG gear units since 1997. More than 500 000 gear units of our gearbox are in use reliably around the world, in many cases under very harsh conditions.


Related Products


For more reducers and mechanical accessories, please click here to view




/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Application: Motor, Electric Cars, Motorcycle, Machinery, Marine, Toy, Agricultural Machinery, Car
Function: Distribution Power, Speed Changing, Speed Reduction
Layout: Helical Gearbox
Hardness: Hardened Tooth Surface
Installation: Vertical Type
Step: Stepless


What maintenance practices are recommended for variators to ensure optimal performance?

To ensure optimal performance and longevity of variators, certain maintenance practices are recommended. These practices focus on regular inspections, proper lubrication, and adherence to manufacturer guidelines. Here’s a detailed explanation of the maintenance practices recommended for variators:

1. Regular Inspections:

Regular inspections are essential to identify any signs of wear, damage, or abnormal operation in variators. Inspect variators visually for leaks, loose fasteners, or any visible damage. Pay attention to abnormal noises, vibrations, or changes in performance, as these could indicate potential issues. Regular inspections allow for early detection and timely resolution of problems, preventing further damage and ensuring optimal performance of variators.

2. Lubrication:

Proper lubrication is crucial for the smooth operation and longevity of variators. Follow the manufacturer’s guidelines for lubrication intervals and use the recommended lubricants. Ensure that the variator is well lubricated, paying attention to the bearings, gears, and other moving parts. Insufficient lubrication can lead to increased friction, wear, and heat generation, compromising the performance and lifespan of variators. Regularly check the lubricant levels and top up or replace the lubricant as per the manufacturer’s specifications.

3. Cleaning and Debris Removal:

Keep variators clean and free from debris, dirt, and contaminants. Regularly inspect and clean the variator housing, cooling fins, and vents to ensure proper airflow and cooling. Remove any debris or foreign objects that may have entered the variator and could interfere with its operation. Accumulated debris can impede heat dissipation and interrupt the smooth movement of components, affecting the performance and reliability of variators.

4. Belt/Chain Inspection and Adjustment:

If the variator is part of a belt or chain-driven transmission system, it’s important to inspect and maintain the belts or chains. Check for signs of wear, damage, or improper tension. Replace worn or damaged belts or chains promptly, and ensure proper tension according to the manufacturer’s specifications. Incorrect belt/chain tension can lead to slippage, reduced power transmission efficiency, and premature wear on variators. Regular inspection and adjustment of belts or chains contribute to optimal performance and longevity of variators.

5. Temperature Monitoring:

Monitor the operating temperature of variators regularly. Excessive heat can be detrimental to variator performance and lifespan. Ensure that variators are operating within the recommended temperature range specified by the manufacturer. If the operating temperature exceeds the acceptable limits, investigate and address the underlying causes such as insufficient cooling, excessive friction, or overloading. Proper temperature management helps to prevent overheating, component degradation, and premature failure of variators.

6. Adherence to Manufacturer Guidelines:

Follow the maintenance guidelines provided by the variator manufacturer. Manufacturers often provide specific maintenance schedules, procedures, and recommendations for their variator models. Adhere to these guidelines regarding inspections, lubrication, cleaning, and any other maintenance requirements. Manufacturers’ guidelines are based on extensive testing and expertise, ensuring that the variators perform optimally and have a longer service life when proper maintenance practices are followed.

7. Professional Servicing:

For complex maintenance tasks or major repairs, it is advisable to seek professional servicing from authorized technicians or service centers. Trained professionals have the expertise, tools, and knowledge to perform intricate maintenance procedures and troubleshoot variator issues effectively. Professional servicing can help identify and address potential problems before they escalate, ensuring optimal performance and reliability of variators.

By following these maintenance practices, variators can maintain their optimal performance, efficiency, and lifespan. Regular inspections, proper lubrication, cleaning, belt/chain maintenance, temperature monitoring, adherence to manufacturer guidelines, and professional servicing all contribute to maximizing the performance and longevity of variators.


Can you explain the impact of variators on the overall drivability of vehicles?

Variators have a significant impact on the overall drivability of vehicles. Their design and functionality contribute to improved performance, smoother acceleration, enhanced fuel efficiency, and better control. Here’s a detailed explanation of the impact of variators on the overall drivability of vehicles:

1. Smooth and Continuous Power Delivery:

Variators, especially those used in continuously variable transmissions (CVTs), provide a smooth and continuous power delivery. Unlike traditional transmissions with fixed gear ratios, variators offer an infinite number of gear ratios within their operating range. This allows the engine to operate at its most efficient speed for a given driving condition, resulting in seamless and uninterrupted power delivery. The absence of gear shifts or abrupt changes in gear ratios enhances the overall driving experience, making it smoother and more comfortable for the driver and passengers.

2. Optimal Powerband Utilization:

Variators enable the engine to stay within its optimal powerband for a wide range of driving conditions. The continuously variable nature of variators allows the engine to operate at the RPM (revolutions per minute) range where it produces the highest torque and power. By keeping the engine within its optimal powerband, variators enhance the vehicle’s responsiveness and acceleration. This results in improved drivability, especially during overtaking maneuvers or when quick acceleration is required.

3. Improved Fuel Efficiency:

Variators, particularly CVTs, contribute to improved fuel efficiency. By continuously varying the gear ratio to match the driving conditions, variators allow the engine to operate at lower RPMs during cruising or light load conditions. This keeps the engine operating at its most efficient point, reducing unnecessary fuel consumption. Additionally, variators eliminate the energy losses associated with gear shifts in traditional transmissions, further improving fuel efficiency. The improved fuel efficiency provided by variators not only lowers fuel costs but also reduces the environmental impact by lowering emissions.

4. Enhanced Control and Responsiveness:

Variators offer precise control over the powertrain, resulting in enhanced vehicle control and responsiveness. The continuously variable gear ratios allow for fine adjustments in power delivery, enabling smooth and precise acceleration or deceleration. This gives drivers more control over their vehicle’s speed and performance, enhancing the overall driving experience. Variators also respond quickly to changes in throttle input, allowing for seamless transitions between different driving conditions and improving drivability in various road and traffic situations.

5. Adaptability to Driving Conditions:

Variators are adaptable to a wide range of driving conditions. They can adjust the gear ratio in real-time based on factors such as vehicle speed, throttle input, and road conditions. This adaptability allows variators to optimize power delivery for different scenarios, whether it’s smooth cruising on highways, navigating city traffic, or tackling steep inclines. By automatically adjusting the gear ratio to match the driving conditions, variators enhance drivability and ensure optimal performance across various situations.

6. Reduction in Noise and Vibrations:

Variators contribute to a quieter and more refined driving experience by reducing noise and vibrations. The continuously variable nature of variators eliminates the need for gear shifts, which are often accompanied by noticeable shifts in engine noise and vibrations in traditional transmissions. With variators, the engine can operate at lower RPMs during normal driving, resulting in reduced engine noise. Additionally, the absence of gear shifts minimizes the vibrations transmitted to the vehicle, leading to a smoother and more comfortable ride.

7. Integration with Advanced Driver Assistance Systems (ADAS):

Variators can seamlessly integrate with advanced driver assistance systems (ADAS) to enhance overall drivability and safety. By providing precise control over power delivery, variators can work in conjunction with ADAS technologies such as adaptive cruise control, lane-keeping assist, and automatic emergency braking. The integration of variators with ADAS enables smoother acceleration and deceleration, improved vehicle stability, and enhanced responsiveness to potential hazards, ultimately improving the overall drivability and safety of vehicles.

In conclusion, variators have a significant impact on the overall drivability of vehicles. They provide smooth and continuous power delivery, optimize powerband utilization, improve fuel efficiency, enhance control and responsiveness, adapt to driving conditions, reduce noise and vibrations, and integrate with advanced driver assistance systems. By incorporating variators into vehicles, manufacturers can enhance the driving experience, improve performance, and achieve higher levels of efficiency and comfort for drivers and passengers.


In what types of vehicles or machinery is a variator commonly used?

A variator is commonly used in various types of vehicles and machinery where the ability to provide variable speed or torque output is desirable. It offers advantages such as continuous gear ratio variation, stepless gear shifts, and optimized engine RPM. Here’s a detailed explanation of the types of vehicles and machinery where a variator is commonly used:

1. Automobiles:

One of the most common applications of a variator is in automobile transmissions. Continuously variable transmissions (CVTs) equipped with variators are increasingly being used in passenger cars, SUVs, and other vehicles. CVTs with variators provide smooth and seamless acceleration, improved fuel efficiency, and optimized power delivery. They are particularly beneficial in stop-and-go traffic situations and urban driving conditions.

2. Motorcycles and Scooters:

A variator is also commonly used in the transmissions of motorcycles and scooters. CVT systems with variators provide a smooth and responsive riding experience, allowing riders to easily adjust the speed and torque output. They offer advantages such as reduced gear shifting, improved acceleration, and enhanced fuel efficiency.

3. Industrial Machinery:

In industrial machinery applications, variators are used in systems that require adjustable speed or torque output. For example, variators can be found in conveyor systems, pumps, fans, and other equipment where precise control and flexibility are necessary. The ability to continuously vary the speed or torque allows for efficient operation and adaptability to different workloads.

4. Agricultural Equipment:

Agricultural machinery, such as tractors, combines, and harvesters, often use variators in their transmissions. The variators enable these machines to adjust their speed and torque output based on the specific requirements of different agricultural tasks. This flexibility allows for efficient operation in various field conditions and crop types.

5. Construction and Earthmoving Equipment:

In the construction and earthmoving industry, variators are used in machinery such as excavators, loaders, and bulldozers. These machines often require variable speed and torque to handle different tasks, such as digging, lifting, or pushing. Variators enable the equipment to adjust its output to match the specific requirements of each operation, improving productivity and control.

6. Marine Applications:

Variators are also utilized in marine applications, including boats, yachts, and ships. CVTs with variators provide smooth and efficient power delivery, allowing for precise control of the vessel’s speed. They offer benefits such as reduced vibration, improved fuel efficiency, and enhanced maneuverability.

In summary, variators are commonly used in automobiles, motorcycles, industrial machinery, agricultural equipment, construction and earthmoving machinery, and marine applications. They provide the ability to adjust speed or torque output continuously, resulting in improved performance, efficiency, and control in a wide range of vehicles and machinery.

China best Udl Series Foot Mounted Light Weight Aluminium Alloy Reduction Stepless Small Variable Speed Reducer Gearbox Variator  China best Udl Series Foot Mounted Light Weight Aluminium Alloy Reduction Stepless Small Variable Speed Reducer Gearbox Variator
editor by CX 2024-03-14