Dozens of bearings in the car is a rolling bearing, large and small, including almost all the common types of bearings, rolling bearings hit and damage is also relatively common. The rolling bearings are generally mounted on the house, so the inconvenience intuitive checks, only the symptoms and first rough judgment, and then remove the check. The proper use of the rolling bearing is a reliable guarantee to reduce the failure of bearings, extending bearing life, its contents, including proper installation and lubrication. The following were the requirements for use of rolling bearings and common faults, damage. Clean a Rolling the proper use a removable bearing bearings should be cleaned before installation. Installation, you should use special tools to auxiliary bearing straight and evenly pressed into, do not hand hammer percussion, especially the ban on direct bearing on percussion. When the bearing ring and bore with loose bore shall repair or replace the bearings, not to play in the bearings with surface pitting or pad copper reluctant to use. Bearing demolition should use the appropriate pull-bearing Pull out bearing Do not use chisels, hand hammer percussion. Lubricated rolling bearing used lubricants are lubricants and grease two kinds. When the shaft peripheral speed is less than 4-5m / s, or parts of the car can not be used lubricating oil, grease lubrication. Grease lubrication of the advantages of simple sealing structure, the grease is not easy to drain, affected by temperature, little, add a grease you can use a longer time.