INA maintenance importance of imported bearing lubrication analysis

In order to guarantee the normal operation of INA imported bearing, and must have good lubrication, rated load and limiting speed of rolling bearings are under the assumption that lubrication to determine the appropriate conditions, the so-called lubrication is appropriate lubricant to choose appropriate, appropriate lubrication dosage, poor lubrication is often caused by one of the main cause of early damage of the bearing. According to statistics, about one-third of the bearing damage due to bad lubrication. Rolling bearing in the rotation, bearing wear and failure due to friction. Block rolling bearing rotating by rolling friction, sliding friction and lubricant friction resistance of three kinds of. When the rolling element bearing rolling on rolling rolling friction; Cage guide roller in the surface, keep guard guide surface and roller bearing in the roller end face and ring is happening on the guard sliding friction; The lubricant friction by the lubricant at the contact of internal friction and lubricant of mixing and extrusion. Thus the impedance bearing movement friction resistance for the three combined. And the purpose of lubrication is grease and lubrication way avoid race, rolling element and cage direct contact between metal, reduce friction heat 'make to minimize friction, reducing wear and tear, prevent corrosion, prolong its service life. Because of INA bearings imports through antirust processing and packaging, so do not open the packing before installation. In addition, the coating on bearing anti-rust oil has good lubrication performance, for the general purpose of bearing or bearing grease filling, can not directly use cleaning. But for the instrument bearing or bearing for high-speed rotation, the application of clean cleaning oil washed away anti-rust oil, when the bearing is easy to rust, not for a long time. Clean the bearing and the shell, confirm no scar or mechanical processing of burr. Shell has absolutely can not have abrasives ( SiC and Al2O3, etc. ) Sand, scraps, etc. Next inspection shaft and shell size, shape and machining quality are consistent with those drawings. Install INA method of imported bearing, for bearing fit, conditions, structure, general, due to many as the axis of rotation, so the inner ring need interference fit. Cylindrical hole bearing, multi-purpose press pressure into, or multi-purpose hot charging method. Taper hole, installed directly on the taper shaft, or use the socket installation. When installed on the shell, clearance fit more commonly, outer ring have surplus quantity, usually use the pressure into the press and or have shrink fit method of cooling after installation. Use dry ice as coolant, shrink fit installation, the moisture in the air condenses on the surface of bearing. So, need a good rust prevention measures. Install INA imported bearing is correct, affect the life, the precision and performance. Therefore, design and assembly department for the installation of the bearing be fully studied. Hope to work in accordance with the standards for installation.