Industrial NSK angular contact ball bearing lubrication and maintenance methods

For as long as possible with NSK bearing in good condition to maintain original performance, maintenance, repair, in order to prevent accident arrangement to ensure the reliability of the operation, increase 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. As maintenance issues in the operation, the rotation of the angular contact ball bearings, vibration, temperature, the state of the lubricants and so on. Bearing clean: remove bearing repair, first record the appearance of the bearing, confirm the residual stock of lubricant, sampling inspection with lubricant, bearing. Common use gasoline, kerosene as a cleaning agent. Tear open come down to the 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. Coarse when cleaning, if to spin bearing with dirt, can damage the bearing 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, NSK bearings in the cleaning of oil side spin, side carefully cleaned. In addition, the clean oil is always kept clean. Bearing inspection and judgment: in order to judge whether the bearing of the removed can use, check after the wash angular contact ball bearing. Check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, the increase of the 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. Angular contact ball 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, guard surface appearance, such as the importance of bearing high must check carefully. NSK bearings overheating may be the cause of incorrect installation, the installation of the skew will cause the rolling ball is not in the correct position of the bearing raceway, and even cause larger ball end face and inner race and the outer bearing seat block of axial force, lead to bearing overheating. Another is likely to be the size of the diameter of axle and bearing hole measurement inaccuracy or cooperate with surface roughness, do not meet the standard requirements to cause excessive interference fit, the bearing race is being squeezed from a large, resulting in the radial clearance of NSK bearings itself, difficult to rotate the angular contact ball bearing, fever, wear or jammed, caused serious bearing inner and outer race during installation. All bearings in the anti friction bearing basically contains two hardened steel rings, multiple hardening of ball or roller, roller or roller and a separation or maintaining aircraft separation. These types are in use is divided into many types. Some types, such as bearings, needle column may not have the internal ring, roller directly on hardening axis movement. In practice, it is necessary to use there is more than the recommended amount of grease. When the required torque low, only need a very small amount of grease lubrication of bearings will be finished. NSK bearings when the speed is very low and exposure to dust or moisture, bearing might almost be filled. Angular contact ball bearing under the condition of high speed and high temperature usually need more frequent than in general lubrication.