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For a long time in good condition to maintain the performance of spherical bearing was possible, maintenance, repair, in order to prevent accidents, ensuring the reliability of operation, increase production, economy. To maintain the best operating conditions of the corresponding mechanical operating standards, regular. Including, monitor the operation condition, supplementary or replacement of the lubricant, periodic disassembly inspection.
In general, if the proper use of outer spherical bearing, can use to reach the fatigue life. But there will be accidents injury prematurely, no resistance to the use case. The early damage, relative and fatigue life, the use of limits to be called a failure or accident quality. More due to installation, use, lubrication on the do not pay attention to, the intrusion of foreign bodies from external, for the study of thermal effect of shaft housing, insufficient etc..
The damage state of outer spherical bearing, such as: card wound roller bearing rings of ribs, may consider as reasons, lack of lubricant, not suitable for bending, for defects, foreign oil discharge structure of invasion, edabearing installation error, shaft is too large, also for these reasons coincide.

Therefore, only investigated injury, it is difficult to know the real cause of injury. But, if you know the bearing, conditions of use, the use of mechanical bearings constructed around, understand the situation before and after the accident, combined with the bearing damage and several reasons why visits, you can prevent the recurrence of similar accidents.
Judgment bearing will use again, according to the degree of injury, the mechanical properties of edabearing, importance, operating conditions, inspection cycle related factors to decide. But when the examination if found to have the following defects, bearings are not in use, the need to replace the new edabearing.
(a) the inner ring, outer ring, rolling body, the holder of any a crack or notch.
(b) ring, rolling body anywhere in a fracture.
(c), rib, rolling rolling surface has obvious scratches on the body.
(d) cage wear apparent, or obvious loosening rivet.
(E) the raceway surface, rolling is rust or scar on the body.
(f) the raceway surface, rolling a serious indentation or bruised body.
(g) has the obvious creep of the diameter of the inner ring or outer ring outside diameter surface.
(H) obvious discoloration due to overheating.
(I) edagrease sealed bearings, seals or shields seriously damaged.