Dozens of rolling bearings, large and small, including almost all of the common type of bearing, bearing it is hit and damage is also more common in the car. Because bearings are generally installed in the house, so the inconvenience visual inspection can only be based on the failure phenomenon first rough judgment, and then remove the check.
The correct use of the bearing is a reliable guarantee for reducing bearing failure, extending bearing life, and its contents, including the correct installation and reasonable lubrication. A description of each the bearing of use requirements.
Bearing disassembly
Before installing the bearings should be cleaned. Installation, you should use the special tools the auxiliary Order of the straight uniform pressed into, do not hand hammer percussion, especially the ban on direct bearing on percussion. When the bearing race and the housing bore with loose seat hole shall repair or replace the bearings, do not fight pitting or pad copper bearing mating surfaces reluctant to use. Bearing Removal should be used when appropriate pull bearing will pull out, do not use a chisel, hand hammer percussion bearing.
2. Bearing lubrication
The bearing lubricant oils and greases. When the circumferential speed of the shaft is less than 4-5m / s, or vehicle can not use lubricating oil parts are grease lubricated. The advantages of the grease lubrication is the sealing structure is simple, easy to drain grease little affected by temperature, plus a grease can use a longer time.
Use grease to pay attention to the two questions, first, according to the vehicle specification requirements, choose the appropriate grade grease. Automotive water pump bearings, for example, should not be optional Kea grease because of its poor water resistance. Is added to the bearing grease in moderation is generally is only filling the bearing cavity 1/2-l/3 appropriate, too much is not only useless, but also increase the running resistance of the bearing warming fever. Particular attention to the automotive wheel bearings, to promote "empty hub lubrication, that can only coated with a layer of the right amount of bearing grease, otherwise, not only a waste heat bad, also grease heat spillover may affect braking performance.
Lubricating small frictional resistance and heat, mainly for high-speed and high ambient temperature bearings. Grades according to automotive lubricants requirements of the specification chosen, and then the timely replacement of automotive maintenance cycle, release the old oil after cleaning institutions coupled with new oil, fuel should be added to the prescribed markings, or flush with oil filler (depending on the car specific structure requirements), not more.


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