TIMKEN bearing installation and maintenance methods

TIMKEN bearing installation is correct, affects the precision, life and performance. Therefore, design and installation of assembly department for TIMKEN bearing to fully research. Hope to work in accordance with the standards for installation. Operation standard project usually is as follows: ( 1) , cleaning TIMKEN bearings and bearing components (associated 2) And check the size of the interrelated parts and finish machining condition ( 3) , installation, 4) , installed after the TIMKEN bearing inspection ( 5) , supply lubricant hope before the installation, just open the TIMKEN bearing packing. General grease lubrication, cleaning, not directly fill grease. Lubricating oil, ordinary also don't have to be clean, but the instrument with or high speed with TIMKEN bearings, etc. , to be washed with clean oil, remove rust inhibitor on the TIMKEN bearings. Remove the rust inhibitor of bearing, easy to rust, so cannot be placed. Also, has the TIMKEN bearing grease sealed, not directly use cleaning. TIMKEN bearing installation method, because the TIMKEN bearing structure, cooperate, conditions, and, in general, as more as the axis of rotation, so the inner circle 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 TIMKEN bearings. So, need a good rust prevention measures. TIMKEN bearing clean: remove the TIMKEN 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 TIMKEN bearing cleaning, rough washing and fine washing, respectively in the container, put a metal mesh bottom first, make the TIMKEN bearing is not direct contact with dirt from the container. Coarse when cleaning, if to spin bearing with dirt, will damage the TIMKEN 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, TIMKEN bearing side rotation in the cleaning of oil, while carefully cleaned. In addition, the clean oil is always kept clean. TIMKEN bearing inspection and judgment: in order to judge whether the TIMKEN bearing is 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 TIMKEN bearing clearance and has nothing to do with dimension precision falling damage, abnormal. Non separation of small ball TIMKEN bearings, with one hand will support level, the inner ring spinning confirm whether smooth outer ring. Tapered roller bearing separation of TIMKEN bearings, rolling body, the outer ring raceway surface can be check 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 TIMKEN bearing high must check carefully.