For a long time to maintain the original performance of SKF bearings in good condition as far as possible, maintenance, repair, in order to prevent accidents, ensuring the reliability of operation, increase the production and economy. To maintain the best operating conditions of the corresponding mechanical operating standards, regular. The content includes monitoring running state, supplement or replacement of the lubricant, periodic disassembly inspection.
Damage and Countermeasure for miniature bearing
In general, if the proper use of SKF bearing, can use to reach the fatigue life. But there will be unexpected miniature bearing early damage, less resistance to the use case. This early damage and fatigue life of a relative, use limits to be called a fault or accident quality. More due to installation, use, lubrication on the do not pay attention to, the intrusion of foreign bodies from external study on thermal effect of shaft housing, insufficient etc..
The damage state of miniature bearings such as: card wound roller bearing ring rib, may consider as reasons, lack of lubricant, not suitable for bending and defect, foreign oil discharge structure of invasion, SKF bearing installation error, shaft is too large, also for these reasons coincide.
(1) observation. Observation of rolling bearing with the naked eye, inner and outer raceway there should be no signs of peeling and serious wear, and is a circular groove; all the rolling surface should be free of spots, cracks and peeling; cage should not loose, no damage, not worn, and the rolling body gap but.
(2) method. Normal miniature bearing rings and rolling elements of clearance for the 0.005 ~ 0.010 mm. The miniature bearing use one phase, pinch with your fingers when axial shaking washer, no shaking sound.
(3) rotating method. With one hand holding the bearing inner race, on the other hand rotation of the outer ring, SKF bearings should be flexible rotation, but do not feel the radial sloshing.
When the examination, 3 empirical method above should be combined, in order to make the correct judgment on the technical state of rolling bearing. Tapered roller bearing SKF, should also observe the rolling is located in the middle of the outer race, if moved forward, should not exceed 1.5 mm.