Bearing maintenance and maintenance

In order to give full play to the bearings and maintain their proper performance for a long time, regular maintenance must be done. Early detection of failures through proper periodic inspections and prevention of accidents are important for increasing productivity and economic efficiency.

1. Cleaning When the bearing is removed for inspection, first record the appearance with a method such as photography. Also check the amount of residual lubricant and sample the lubricant before cleaning the bearing.

a. Washing of the bearing is performed in rough and fine washing, and a metal grid can be placed at the bottom of the container used.

b. When rough washing, remove grease or sticky material in the oil with a brush or the like. If you turn the bearing in oil at this time, be careful to damage the rolling surface due to foreign objects.

c. When slowly washing, slowly rotating the bearing in the oil must be performed carefully.

Commonly used cleaning agents are neutral water-free diesel oils or kerosene, and occasionally mild alkali liquors are used as necessary. Regardless of the type of cleaning agent used, it should always be filtered and kept clean.

Immediately after cleaning, apply anti-rust oil or anti-rust grease to the bearing.

2, inspection and judgment In order to determine whether the removed bearings can be reused, we must focus on checking its dimensional accuracy, rotation accuracy, internal clearance and the mating surface, raceway surface, cage and seals.

The result of the inspection can be judged by a conventional bearing or a proficient bearing.

The criteria for judgment differ depending on the mechanical properties and degree of importance and the inspection period. If the following damage occurs, the bearing must not be reused and must be replaced.

1) Cracks and defects in bearing components.

2) Peeling of raceway surface rolling surface.