As a high-precision, high-efficiency transmission device, harmonic 

reducer is widely used in robotics, aerospace, precision machining 

and other fields. In the harmonic reducer, the role of the bearing is 

crucial. It not only ensures the precise positioning and smooth 

operation of the internal moving parts of the reducer, but also dire-

ctly affects the transmission efficiency, service life and overall reli-

ability of the system.

As supporting and guiding moving parts of mechanical arms and 

robots, bearings bear forces and torques in various directions, 

ensuring the stability and accuracy of the equipment. In a robotic 

arm, bearings are used to connect various joints, allowing the 

robotic arm to move and position flexibly. High-quality bearings 

can reduce friction and improve the smoothness and accuracy of 

movement, thereby improving the efficiency and accuracy of the 

robotic arm. Industrial robots also rely on bearings to achieve 

var-ious movements and operations. For example, spherical bear-

ings are used to connect the various joints of a robot, allowing it 

to perform multi-axis motion. At the same time, tool end bearings 

are used to support and fix robot end effectors, such as fixtures, 

welding guns, etc. Ensure its stability and accuracy during work.

With the rapid development of industrial automation and intelligent 

manufacturing, RV reducers have been widely used in robot arms, 

precision positioning systems and various automation equipment 

due to their high precision and high rigidity. The performance of 

the RV reducer directly affects the operating efficiency, accuracy 

and stability of the entire system. In this context, bearings are a 

key component of RV reducers, and their performance has a dec-

isive impact on the overall performance of the reducer.