How to judge whether the angular contact precision bearing can continue to be used? First of all, it is necessary to consider the degree of bearing wear, equipment characteristics, necessity, operating standards, inspection cycle time, etc. before making a decision. If the bearing is damaged or abnormal, it is necessary to find out the reason and formulate preventive measures. In addition, the inspection conclusion, if the following conditions are true, your angular contact precision bearing is likely to be unusable and must be replaced with a new bearing. a. The inner and outer rings, rolling elements, and cages have cracks and debris in any of them. b. Any one of the inner and outer rings and rolling elements is separated. c. The raceway surface, rib, and rolling are unique and obviously stuck. d. The damage to the cage is obvious or the bolts are loose. e. The raceway surface and rolling elements are corroded and scarred. f. There are obvious impressions and marks on the rolling surfaces and rolling elements. g. There is stress relaxation on the nominal diameter face of the inner circle or the outer diameter. h. Super-temperature discoloration is powerful. i. The seal ring and seal cover of the grease-sealed bearing are damaged more seriously. The torque is accurate, the rotation can be stable, professional angular contact precision bearing manufacturer!