China supplier Mechanical Speed Variator Gearbox for Liquid Crystal Manufacturing Equipment components of gearbox

Product Description

Product Description

mechanical speed variator gearbox for liquid crystal manufacturing equipment

mechanical speed variator gearbox Installed with radial thrust ball bearings, so it can support external load, torque rigidity, large allowable torque, can reduce the number of components required, easy installation. The revolution speed of WRV gears is slower and vibration is reduced, which can reduce the motor structure (input gear) and inertia.
mechanical speed variator gearbox  High precision, high rigidity, high torque, high load and other characteristics realize hollow design at the same time. After being hollowed out, the ease of use of the product is improved due to the variety of piping and cable layout options.

Product Parameters


     WRV-C(Hollow type) Specifications WRV-10C WRV-27C WRV-50C WRV-100C WRV-200C WRV-320C WRV-500C
Rated output torque 686 980 1764 2450 8820 2 0571 34300
Reduction ratio 27 36.57 32.54 36.75 34.86 35.61 37.34
Backlash <=1 

Detailed Photos


Application Case

Company Profile


HangZhou Fubao Electromechanical Technology Co., Ltd. was established in 2008, the company has a complete precision reducer design, production capacity. Set R & D, manufacturing, assembly and sales, more in the field of gear manufacturing has more than 10 years of background, in the manufacturing equipment is equipped with Switzerland Riesenhahl gear grinding machine, domestic Qinchuan gear grinding machine, hamai gear hobbing machine and domestic Xihu (West Lake) Dis. gear hobbing machine, Japan Yasaki TLGmazak CNC lathe, CNC milling machine and other fully CNC equipment, In addition, it is equipped with other advanced measuring equipment such as Japanese TTI gear detector, 3 coordinate measurement, reducer backlash measurement instrument and so on. In a strong manufacturing capacity at the same time, can be stable, continuous manufacturing of high-quality precision reducer products.

The precision reducer produced by our company has the characteristics of high structural rigidity, small back backlash, precise transmission and so on. It is widely used in various industries. Companies adhering to the concept of let customers participate in manufacturing, and strive to provide customers with more personalized services. In the field of precision transmission has a unique achievements. It is our CHINAMFG pursuit to make far-reaching contributions.


Factory Display


Q: Speed reducer grease replacement time
A: When sealing appropriate amount of grease and running reducer, the standard replacement time is 20000 hours according to the aging condition of the grease. In addition, when the grease is stained or used in the surrounding temperature condition (above 40ºC), please check the aging and fouling of the grease, and specify the replacement time.

Q: Delivery time
A: Fubao has 2000+ production base, daily output of 1000+ units, standard models within 7 days of delivery.

Q: Reducer selection
A: Fubao provides professional product selection guidance, with higher product matching degree, higher cost performance and higher utilization rate.

Q: Application range of reducer
A: Fubao has a professional research and development team, complete category design, can match any stepping motor, servo motor, more accurate matching.

Shipping Cost:

Estimated freight per unit.

To be negotiated
Application: Motor, Machinery, Agricultural Machinery, Robot Arm
Function: Change Drive Torque, Speed Changing, Speed Reduction, Lower Rpm and Increase Torque
Layout: Cycloidal


Customized Request

variator gearbox

Can variator gearboxes be used for both speed reduction and speed increase?

Yes, variator gearboxes are versatile and can be used for both speed reduction and speed increase applications. Their design allows for continuous and stepless adjustment of the gear ratio, enabling a wide range of speed variations in either direction. Here’s how variator gearboxes achieve speed reduction and speed increase:

Variator gearboxes utilize a mechanism called a variator, which consists of two cone-shaped pulleys connected by a belt or chain. These pulleys can move closer or farther apart, effectively changing the effective diameter of the pulley and thus the gear ratio. By adjusting the distance between the pulleys, the gear ratio can be continuously varied, resulting in different output speeds.

Speed Reduction:

When the variator gearboxes are used for speed reduction, the input speed is higher than the desired output speed. In this case, the variator mechanism adjusts the pulleys to create a smaller effective diameter on the output side. As a result, the output shaft rotates at a slower speed compared to the input shaft, achieving speed reduction. This speed reduction is useful in various applications where slower speeds are required, such as conveyors, industrial machinery, or vehicles that need lower operating speeds.

Speed Increase:

Variator gearboxes can also be used to increase the speed from the input to the output shaft. In this scenario, the input speed is lower than the desired output speed. The variator mechanism adjusts the pulleys to create a larger effective diameter on the output side. As a result, the output shaft rotates at a faster speed than the input shaft, achieving speed increase. Speed increase functionality is beneficial in applications such as certain types of machinery or vehicles that require higher operating speeds.

The ability of variator gearboxes to provide continuous and stepless adjustment of the gear ratio allows for precise control of the output speed, regardless of whether it needs to be reduced or increased. This flexibility makes variator gearboxes suitable for a wide range of applications where adjustable speed control is necessary.

It is worth noting that while variator gearboxes can provide a significant range of speed reduction and speed increase, they have limitations in terms of the maximum and minimum achievable ratios. The specific capabilities of a variator gearbox depend on its design, size, and intended application. It is important to consult the manufacturer’s specifications and guidelines to ensure that a particular variator gearbox is suitable for the desired speed reduction or speed increase requirements.

variator gearbox

How do variator gearboxes contribute to energy efficiency and reduced power consumption?

Variator gearboxes play a significant role in improving energy efficiency and reducing power consumption in various applications. They offer several advantages that contribute to these benefits. Here’s how variator gearboxes help achieve energy efficiency and lower power consumption:

Variable Speed Operation:

One of the primary ways variator gearboxes contribute to energy efficiency is by enabling variable speed operation. Unlike fixed-speed gearboxes, variator gearboxes allow for continuously adjustable speed ratios within a specific range. This feature allows the machinery or equipment to operate at the optimal speed for a given task or load. By running the system at the required speed rather than a fixed maximum speed, energy wastage due to unnecessary high-speed operation is minimized, resulting in energy savings.

Efficient Power Transmission:

Variator gearboxes are designed to optimize power transmission efficiency. They utilize efficient power transfer mechanisms, such as belts or chains, along with well-engineered pulley systems. These systems minimize power losses due to friction and slippage. Compared to other mechanical transmission systems, variator gearboxes can achieve higher overall transmission efficiency, ensuring that a greater percentage of input power is effectively delivered to the output, reducing power consumption.

Load-Adaptive Operation:

Variator gearboxes allow for load-adaptive operation, meaning they can adjust the output speed and torque according to the applied load. When the load requirements are low, the variator gearbox can reduce the speed and torque output, resulting in lower power consumption. This load-adaptive operation ensures that the machinery or equipment operates at the appropriate power level to meet the specific load demands, minimizing energy waste during periods of low load.

Optimized Gear Ratios:

Variator gearboxes offer a wide range of gear ratios that can be adjusted based on the specific application requirements. By selecting the optimal gear ratio, the variator gearbox allows for efficient power transfer and reduced power losses. The ability to customize the gear ratios ensures that the machinery or equipment can operate at the most favorable speed and torque combination, maximizing energy efficiency and minimizing power consumption.

Regenerative Braking:

Some variator gearboxes, particularly those used in hybrid or electric vehicle applications, incorporate regenerative braking systems. These systems harness the energy generated during braking or deceleration and convert it into electrical energy, which can be stored and reused. By recovering and reusing this energy, variator gearboxes contribute to overall energy efficiency and reduce the power consumption of the vehicle or system.

Control Systems and Automation:

Variator gearboxes can be integrated with advanced control systems and automation technologies. These systems enable precise control over speed, torque, and power output. By implementing intelligent control algorithms, variator gearboxes can optimize their operation based on real-time load conditions, further enhancing energy efficiency and reducing power consumption.

Overall, variator gearboxes offer variable speed operation, efficient power transmission, load-adaptive operation, optimized gear ratios, regenerative braking (in certain applications), and integration with control systems. These features and capabilities contribute to improved energy efficiency and reduced power consumption, making variator gearboxes a valuable choice for applications where energy savings are a priority.

variator gearbox

What is a variator gearbox and how does it work in mechanical systems?

A variator gearbox, also known as a variable speed transmission, is a type of gearbox that allows for continuous and stepless variation of the output speed within a certain range. It is commonly used in mechanical systems where the output speed needs to be adjusted dynamically without fixed gear ratios. The variator gearbox achieves this by employing specific mechanisms such as belts, chains, or cones.

One common type of variator gearbox is the belt-and-pulley system. It consists of two variable-diameter pulleys connected by a belt. These pulleys can change their effective diameter by adjusting their position. The input pulley is connected to the power source, such as an engine or motor, while the output pulley is connected to the load. By varying the diameters of the pulleys, the speed ratio between the input and output can be continuously adjusted, allowing for a wide range of output speeds.

The variator gearbox works based on the principle of changing the effective radius of the pulleys. When the input pulley diameter increases or the output pulley diameter decreases, the belt is forced to ride higher on the pulley, resulting in a larger effective radius. This causes the output speed to decrease relative to the input speed. Conversely, when the input pulley diameter decreases or the output pulley diameter increases, the belt rides lower on the pulley, leading to a smaller effective radius and an increase in the output speed.

The variator gearbox can be controlled manually or automatically, depending on the application. In manual systems, the adjustment of the pulley diameters is done by the operator using mechanical or hydraulic mechanisms. In automatic systems, the adjustment is typically controlled by a computer or an electronic control unit (ECU) based on various parameters such as speed, load, or user inputs.

One of the key advantages of variator gearboxes is the ability to achieve smooth and stepless speed variation. Unlike traditional gearboxes with fixed gear ratios, variator gearboxes offer infinite possibilities for adjusting the output speed. This flexibility is particularly beneficial in applications where precise control of speed is required, such as in vehicles, industrial machinery, and power transmission systems.

However, it’s important to note that variator gearboxes may have limitations in terms of torque capacity and efficiency compared to traditional fixed-ratio gearboxes. The power transmission efficiency of variator gearboxes can vary depending on the specific design and operating conditions.

In summary, a variator gearbox is a type of gearbox that allows for continuous and stepless variation of the output speed. It uses mechanisms such as belts, chains, or cones to adjust the effective diameter of the pulleys, enabling dynamic speed control in mechanical systems.

China supplier Mechanical Speed Variator Gearbox for Liquid Crystal Manufacturing Equipment   components of gearbox	China supplier Mechanical Speed Variator Gearbox for Liquid Crystal Manufacturing Equipment   components of gearbox
editor by CX 2023-09-23