NTN bearing preventive maintenance should pay attention to matters - bearing knowledge

Of NTN bearing equipment preventive maintenance, operation and peripheral parts change was removed when the NTN bearing to suspend the checking, discriminant NTN bearing parts demand, in turn, can use again and record the condition of using good from bad. Are hard to query visit and record the NTN bearing is removed and appearance. In order to find out and query to visit the amount of residual lubricant, sampling, back to wash the NTN bearing well. Second checking NTN bearing raceway surface of the rolling surface and on the surface of the joint venture and confrontation of the wear conditions of with and without damage and abnormalities in particular is to examine the raceway surface running track. Discriminant NTN bearing can use again, to thinking about NTN bearing damage levels, mechanical function, primacy, operation premise, such as checking cycle back again choice. Checking the effect, if found damage and abnormalities in NTN bearing, please find out notice in accordance with the NTN bearing damage phenomenon, make countermeasures. In addition, the checking result, there are some defects, if can't use the NTN bearing, demand a change in new NTN bearing. 一个。 Inner and outer ring, rolling body, confrontation and hear any crack and present pieces. b。 In the inner and outer ring, rolling body any a divestiture. c。 Raceway surface, guard, significant injury of roller. d。 Confrontation of badly worn or loose rivet fierce. e. Raceway surface, rust and roller has a scar. f。 Had a remarkable indentation rolling surface, rolling body and make a mark. g。 Inner ring diameter or outer diameter on the creep. h。 Hot color changing fierce. 我。 NTN bearing grease seal ring and dust cover damage to serious.