Bearing is an important part of modern mechanical equipment. Its main function is to support the mechanical rotating body, reduce its friction coefficient in the process of motion, and ensure its rotation accuracy. According to the different friction properties of moving elements, bearings can be divided into rolling bearings and sliding bearings. The rolling bearing has been standardized and serialized, but compared with the sliding bearing, its radial size, vibration and noise are larger, and the price is higher.

HCVAC coated rings, rollers or balls can improve service life and surface fatigue strength under poor lubrication conditions or particle contamination. Ceramic component replacement for safe operation and fracture safety under extreme operating conditions