Bearing frequent replacement troubleshooting table

Bearing frequent replacement troubleshooting table number changed frequently cause solution 1 grease or oil bearing failure, choose right decision not to ask of oil type lubricant 2 low oil level or lack of grease lubricating oil must be below the bottom of a rolling body center; Bearing grease filling about 1/3 to 1/2 in the space 3 bearing internal clearance is not appropriate such as axis, heat expansion when heated to choose appropriate internal clearance of bearing, such as from a standard to C3 and C3 to C44 lubricant by dirt, sand, carbon powder and other foreign matter pollution clean bearing box, change the new oil seal or improved oil seal, inject fresh lubricant 5 water, acid, paint or other corrosive substances into the bearing housing unit 6 protective dust cover or left rings bearing box twisted or inner hole is not round, too small to measure and turning bearing box size of holes, the fixed end bearing by cylindrical roller bearing, deep groove ball bearings can result in box 7 assembly hole tight or small bearings bearing box before didn't clean clean bearing box and add fresh lubricant bearing oil such as fan because of 8 airflow through the air flow through the bearing installation barge board makes the airflow, possible to use 9 bearing grease cross positioning in bearing box and lifted the lid on the join between the flange gasket to release bearing preload of 10 a shaft have two locating bearing, the axial expansion of excessive lead to cause bearing internal clearance is insufficient to offset any bearing box end cover, and insert the gasket to adjust the axial clearance of bearing outer ring and bearing can free axial moving 11 shaft neck is too small, or neck sleeve locking enough spray shaft neck surface and grinding to the specified size or to fasten the sleeve 12 socket set too loosen screw and barrel, lock again to enough force, but must ensure that the bearing can rotate freely 13 oil from excessive loss of bearing box space surface using sealed by a thin layer of paint will help to prevent oil spills. Don't use adjusting shim, if necessary, change the unbalanced load bearing box 14 machine is too large, or bearing hole is too big to balance machine, or replace the accurate size of bearing box 15 bearing due to deformation of the shaft and bearing box hole on the composite uneven distribution of reprocessed shaft and bearing box holes in order to obtain the proper shape and cooperate. 但通常需要更换新的轴或轴承箱16不适当的轴台肩支撑引起轴的弯曲重新加工轴的倒角以消除应力，可能需要加轴肩卡环17轴承在轴承箱内支撑不足，导致外环扭曲重新加工轴承箱的倒角以消除应力，可能需要加轴肩卡环18轴肩与轴承密封摩擦重新加工轴肩消除摩擦19轴承密封件变形重新加工轴承箱空肩部以避开轴承密封盖20轴和内圈变形，轴承内圈不均匀膨胀重新加工轴倒角以获得适当的支撑21轴承盒和外圈变形，轴承被挤压重新加工轴承盒倒角以获得适当的支撑22旋转油封或甩尘环摩擦静止部件检查旋转油封或甩尘环的运转间隙以避免摩擦，防止不对心23油位不正确,轴承中没有润滑剂清除油位计中气孔的堵塞物,使油位显示正确24轴承和轴不同心,或轴和轴不同心通过调整垫片调整轴承之间的对位,或改善轴与轴之间的对中精度25恒油位杯安装过高或过低,或安装在与轴承转向相反的位置静止状态时油位不高于最下方滚动体的中心,或将恒油位杯安装在与轴承转动方向一致的准确位置26机器的其他运动部件与静止部件相摩擦检查动静部件之间的配合间隙27轴承安装方法不正确,锤击轴承更换新轴承,规范轴安装28轴承接触型油封过度磨损导致润滑剂流失,污物进入更换新油封,清理轴承箱并重新注入新鲜润滑脂29轴肩或箱孔肩或锁紧螺母不垂直与轴承位重新加工零件以获得良好的垂直度30轴颈加工尺寸过大导致轴承内部间隙过小研磨轴颈使轴和轴承获得适当配合31轴承箱孔的材质过软受力后导致轴承外圈在箱孔内打滑扩大箱孔并加入一个铜质衬套,然后加工铜质衬套至合适尺寸