On a regular basis for maintenance role TIMKEN rolling bearing

In order to judge whether the bearing of the removed can be used again, check after the TIMKEN bearing clean, carefully check the raceway surface, rolling surface, cooperate with the state, the abrasion of cage, the increase of the rolling bearing clearance, and presence of dimensional precision, abnormal falling damage. Separated type 1, the ball bearing, with one hand will support level, the inner ring spinning confirm whether smooth outer ring. 2, tapered roller bearings, such as separation type bearing, rolling body, the outer ring raceway surface can be respectively. 3, large bearing can't rotate with the hand, pay attention to check, raceway and roller and cage, guard surface appearance, etc. Whether can be used to determine, is considering rolling bearing damage degree, mechanical properties, importance, and operating conditions, to the next overhaul period. But, if you have the following defects, rolling bearing is can't use, must be replaced new bearing: 1, inner ring and outer ring, rolling element and cage have crack or gap on any one; 2, ring, rolling body on any fracture; 3, raceway surface, guard, with significant roller card injury; 4, maintains a significant wear and tear, or rivet significant relaxation; On page 5, raceway and rolling body rust, injured; On page 6, raceway and rolling body serious indentation and mark; 7, inner ring diameter or outer diameter surface has obvious creep; 8, the discoloration caused by thermal obvious; 9, the bearing grease sealed, sealing ring or dust cover breakage is obvious. Late fault character of rolling bearing to severe fault ( Generally for TIMKEN bearing damage, such as holding shaft, burns, sand spallation, raceway, wear beads, etc. ) Most of time not more than a week, the bigger the equipment capacity, the faster the speed, the shorter the time interval. Therefore, in the actual fault diagnosis of rolling bearing, once found late fault characteristics, should be decisive judgment is bearing fault, arrange inspection as soon as possible. Movement after a period of time, maintain a certain level of vibration and noise, frequency spectrum is very single, only one or two times the frequency. Rarely appear more than three times the power frequency spectrum, TIMKEN bearing condition is very stable, steady working period. Continue to run into the use of late, after rolling bearing vibration and noise began to increase, sometimes a different sound, but the change of vibration increase is relatively slow, at this point, the rolling bearing kurtosis value began suddenly reaches a certain value. We believe that the rolling bearing is characterized by the early failure. Pop to bearing manufacturing through forging, hot freedom, turning processing, grinding and assembly process. The rationality of the processing technology, advanced, stability will also affect the service life of bearing. Freedom and affecting the quality of TIMKEN bearing grinding process, often have a more direct relationship with bearing failure. Layer of bearings working surface transformation in recent years of the study indicate that is close to the grinding process and the surface quality of bearing. First obligation of TIMKEN bearing using life is based on a large entourage of information, analyze the data and the failure pattern of postures, find a bearing failure of the primary elements, so that the improvement measures are put forward, and delay the retirement period of rolling bearing, avoid anger burst in the early failure of the bearings.