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Maintenance method of bearing

Word:[Big][Middle][Small] QR Code 2024/3/20     Viewed:    
Cleaning of bearings: When disassembling bearings for maintenance, first record the appearance of the bearings, confirm the residual amount of lubricants, take samples to inspect the lubricants used, and then wash the bearings. As a cleaning agent, regular cleaning agents and kerosene are used.

The dismantled bearings are cleaned, divided into coarse cleaning and fine cleaning, and placed in containers respectively. First, a metal mesh pad is placed on the bottom to prevent the bearings from directly contacting the dirt in the container. During rough cleaning, if the bearing is rotated with dirt, it will damage the rolling surface of the bearing, and attention should be paid. In rough cleaning oil, use a brush to remove lubricating grease and adhesive substances. After roughly cleaning, proceed to fine cleaning. Fine cleaning refers to carefully cleaning the bearings while rotating them in cleaning oil. In addition, cleaning oil should also be kept clean regularly.

Maintenance and judgment of bearings: In order to determine whether the dismantled bearings can be used, they should be inspected after being cleaned. Check the condition of the raceway surface, rolling surface, and mating surface, as well as the wear of the retainer, the increase in bearing clearance, and any damage related to a decrease in dimensional accuracy, and any abnormalities.

For non separable small ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to confirm smoothness.

Conical roller bearings and other separable bearings can be inspected separately for the raceway surfaces of the rolling element and outer ring.

Large bearings cannot be rotated by hand. Pay attention to inspecting the appearance of rolling elements, raceway surfaces, retainers, and retaining surfaces. The higher the importance of bearings, the more careful they need to be inspected.

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