Oilless bearing repair process and judgment can use again

Overhaul disassemble the oilless bearing, the first record bearing appearance, confirm the residual stock of lubricant, after sampling, clean without oil bearing.Cleaning agents commonly used gasoline, kerosene. 
Removed without oil bearing cleaning, rough washing and fine washing, metal mesh is put in container first, don't direct contact with dirt from the container.Rough washing, if bearing with dirt, import bearings rolling surface damage, should be pay attention to.Wash the oil in the coarse, use a brush out grease, adhesion, basic clean, into fine cleaning). 
Fine cleaning, is to import the bearing side rotation in the wash oil, while carefully cleaned.In addition, often cleaning oil will change kept clean. 
Imported bearing inspection and judgment
Judge remove when imported bearing can use again, check after the bearing cleaning, carefully check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, suzhou import bearing clearance whether to increase, and presence of falling damage, abnormal size precision.Non separation of small ball bearings, etc., the inner ring with one hand flat end, rotate the outer ring confirm whether smooth. 
Tapered roller bearing separation type bearing, rolling body, the outer ring raceway surface can be respectively. 
Large bearing can't rotate with the hand, pay attention to check the rolling element and raceway surface, cage and guard surface appearance, bearing the importance of the higher, the need to be careful to check. 
Judge imported bearing can use again, according to the damage degree of suzhou import bearings, mechanical properties, importance, and operating conditions, the factors related to inspection cycle to decide.But check if found any of the following defects, the bearing can't continue to use, need to replace new import bearings. 
(a) inner ring and outer ring, rolling body, any has a crack or breach in a cage. 
(b) a: do you have any ring, rolling body fracture. 
(c) rolling surface, guard, has obvious scratches on rolling element. 
(d) maintain shelf wear, or rivets loose obviously. 
(e) on the raceway surface, rolling body is rust or scar. 
(f) on the raceway surface, rolling body has serious indentation or bruised. 
(g), inner ring diameter or outer diameter surface has obvious creep. 
(h) and obvious discoloration due to overheating. 
(I) the suzhou oilless bearing grease sealed, sealing ring or dust cover seriously damaged.