Maintenance and judgment of fasteners: in order to judge whether the disassembled fasteners can be used, the fasteners shall be inspected after cleaning. Check the state of raceway surface, rolling surface and mating surface, wear condition of persistence frame, increase of fastener clearance and damage irrelevant to dimensional accuracy drop, and it is abnormal. For non separable small ball fasteners, use one hand to the support degree of the inner ring and rotate the outer ring to confirm whether it is fluent.

Fastener maintenance: in order to maintain the original performance of fasteners in good condition for as long as possible, it is necessary to maintain, repair and prevent accidents, ensure the reliability of operation and improve consumption and economy.

Take good care of the operation specifications of the corresponding mechanical operation conditions and stop them regularly. The contents include monitoring the operation status, supplementing or changing the smoothing agent, and regular disassembly inspection. Maintenance items during operation, including rotation sound, vibration, temperature, state of smoothing agent, etc.

Maintenance of fasteners: cleaning of fasteners: when removing fasteners for maintenance, first record the appearance of fasteners, confirm the residual amount of smoothing agent, and wash fasteners after sampling the smoothing agent for inspection. As a cleaning agent, gasoline and kerosene are commonly used.

The removed fasteners shall be cleaned in coarse cleaning and fine cleaning. They shall be placed in the container respectively, and the metal mesh cushion shall be placed first, so that the fasteners do not directly contact the dirt of the container. During rough cleaning, if the fastener rotates with dirt, it will damage the rolling surface of the fastener, which should be paid attention to. In the coarse cleaning oil, use the brush to remove the smooth grease and adhesion. After it is roughly clean, turn to fine cleaning.

Fine cleaning is to carefully clean fasteners while rotating them in cleaning oil. In addition, the cleaning oil should always be cleaned.