In General, if the proper use of the bearing, you can use up to reach fatigue life. But there is an unexpected injury prematurely, not resistance to the use of. This early injury, as opposed to a fatigue life, is referred to as the quality limits of failures or accidents. Mostly due to lack of attention on the installation, use, lubricate, intrusion of foreign bodies from the outside, for study on thermal effect of axis, shell was insufficient, and so on.
　　SKF bearing damage such as: roller bearing rings, ribs hurt, as a reason to consider, for oil lubricant inadequate, inappropriate, construction defect, the intrusion of foreign bodies, bearing misalignment, shaft deflection is too large, there will be these reasons coincide.
　　Therefore, only investigated the damage, it is difficult to know the real cause of injury. However, if you know the use of machinery, the conditions of use of the bearing, bearing the surrounding structure, understanding of the situation before and after the accident, combined with several causes bearing damage and visit, you can prevent the recurrence of similar accidents.
　　Judgement of bearing:
　　SKF bearing is available judgments, principally bearing damage, mechanical performance, the importance, the operating conditions, to decide during the next maintenance. You will no longer be used if any of the following defects, must be replaced with new bearings. Inner ring, outer ring, rolling elements, cages on any cracks or gaps.
　　1, rings, rolling elements on any one break.
　　2, scroll bars on the road surface, rib and rolling have significant injuries.
　　3, cage wear or rivets with relaxation.
　　4, roll on the road surface, rolling rust, is injured.
　　5, SKF bearing Raceway surface, rolling on the grave marks and creasing.
　　6, inner or outer ring outside diameter surface circle diameter surface there are significant creep.
　　7, due to thermal discoloration caused by obvious.
　　8 SKF bearings, sealed in grease, seals or shields of damage significantly.



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