INA bearings and knowledge of the maintenance - bearing damage

Not all of the bearing damage can be repaired, but for each damage of bearing considering repair or replace new INA bearings before, must be the reason and degree of damage assessment in order to avoid or reduce the damage once again. Bearing damage caused by many reasons, such as improper installation, filth from invading as well or water intrusion is a lot of bearing a common cause of early damage. INA bearings and the corresponding analysis of the causes of the common damage prevention measures can extend the life of INA bearings. Rust and corrosion: contact with water may cause pitting INA bearing elements and rust. Current: INA bearing rotates the electricity may result in a groove or notch. Eccentric, eccentric, tilt, or excessive load may result in geometrical stress concentration or surface spalling preventive measures: precision machining INA bearing seat, and shoulder the INA bearing equipment preventive maintenance, operation and peripheral parts was removed when changing suspension bearing checking, discriminant times demand, in turn, can bearing parts can be used again and record the condition of using good from bad. Second checking INA 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 bearing can use again, to ponder on the level of the bearing damage, mechanical function, primacy, operation premise, such as checking cycle back again choice. Checking the effect, if discover INA bearing damage and abnormal condition, please find out notice according to the bearing damage phenomena, develop countermeasures. In addition, the checking result, there are some defects, if the bearing can't use, need to change new INA bearings. 1, INA bearing maintenance: for as long as possible in good condition to maintain the performance of the bearing was required to maintenance, repair, in order to prevent accident arrangement to ensure the reliability of operation, improve the productivity and economy. To maintain the best conditions of mechanical operation of the corresponding operation standard, on a regular basis. Content includes monitor running status, supplement or replacement of lubricants, remove the check on a regular basis. Points for maintenance operation, with the rotation of the INA bearing the sound, vibration, temperature, the state of the lubricants and so on. 2, INA bearing maintenance: bearing cleaning: removing bearing under repair, the appearance of the first record bearing, confirm the residual stock of lubricant, sampling inspection with lubricant, wash INA bearings. Common use gasoline, kerosene as a cleaning agent. Tear open come down to the INA bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the bearing is not direct contact with dirt from the container. Rough when cleaning, if rotating the INA bearings with dirt, damage of INA bearings rolling surface, should be pay attention to. In coarse clean oil, use a brush to remove grease, adhesive, after clean, roughly into fine cleaning). Fine cleaning, INA bearing side rotation in the cleaning of oil, while carefully cleaned. In addition, the clean oil is always kept clean. 3, INA bearing inspection and judgment: in order to judge whether the bearing of the removed can use, check after wash bearing. Check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, the increase of the INA 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 tapered roller bearings and bearing, rolling body, the outer ring raceway surface can be respectively. Large INA bearings can't rotate with the hand, pay attention to check the rolling element and raceway surface, cage, guard surface appearance, such as the importance of INA bearings high must check carefully. 1, work together as much as possible through the axis of the INA bearing, which requires the screws even symmetry and smooth, by spherical or parallel to the axis force application. 2, the size of the wire should be smooth and uniform, unfavorable impact, this request can use hydraulic or use steady pull or pressure tool, it had to use hammer, also want to through soft without exfoliation metals such as copper sleeve to buffer, tapping force as gently as possible. It is best to use copper or copper hammer hammer. 3, avoid by applying pressure roller, which requires the inner ring (installation Axial circle) When applying pressure through the inner ring and outer ring installation) Through the outer power works. 4, the extent of the drag force continued to be, for example when installing a INA bearings in the bearing fit to the correct position to stop work, guarantee the ring ( Washers) The end face of landing on a hole or shaft shoulder end, neither packed too tight, nor does not reach the designated position.