Common INA universal joint bearing noise maintenance technology

1, the scars of the sound ( Brinell indentation) . 'The voice of reason: the axial pressure into the shaft collar or bearing chamber, INA bearings produced inside the brinell creasing countermeasures: use indentation resistance design of the bearing, in order to improve the qualified rate of assembly,' NSK 'indentation resistance design 2, scars, Fretting wear) 'The voice of reason: due to transportation vibration of turbulence in, universal joint between the steel ball and rolling bearing produce micro wear cause sound countermeasures: improve the packaging and transportation mode, micro wear resistant grease, in order to improve the qualified rate. 'The voice of reason: the retainer and friction caused by the steel ball collision phase noise countermeasures: the retainer of retainer down to the bearing cleaning grease, and can be divided into rough washing and fine washing, first put down INA bearings respectively on the container, first put on the metal mesh at the bottom of the bearing is not direct contact with dirt from the container. Rough washing, if rotating the gimbal bearings with dirt, can damage the bearing rolling surface, should be protected. Use cleaning brush to wash the oil in the coarse, remove grease, adhesive, after clean, roughly into fine cleaning process. Bearing inspection and judgment: in order to judge whether the bearing of the removed can continue to use, check after wash bearing. Check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, the increase of the universal joint bearing clearance and has nothing to do with dimension precision falling damage, abnormal. Non separation of small ball bearings, with one hand will support level, the inner ring spinning confirm whether smooth outer ring. Separation of INA bearings and bearing, rolling body, the outer ring raceway surface can be respectively.