As one of the key accessories of industrial robots, industrial robot bearings mainly include two types of bearings for industrial robots, one is equal-section thin-wall bearings, and the other is crossed cylindrical roller bearings. There are also harmonic reducer bearings, linear bearings, spherical bearings, etc., but the first two types of bearings are more commonly used.

The development of modern industrial robots tends to be lightweight. To be installed in a limited space, bearings must be small in size and light in weight, that is, lightweight. But at the same time, the robot's high load, high rotation accuracy, high running stability, high positioning speed, high repeat positioning accuracy, long life, and high reliability require that the supporting robot bearings must have high load-bearing capacity, high precision, and high reliability. Rigidity, low friction moment, long life and high reliability performance.