There are dozens of cars bearing is rolling bearing SKF, greatly small almost include all common bearing type, rolling bearing of the hit and damage is also more common. Because of rolling bearings are generally is packed in internal institutions, so inconvenience intuitive check, can according to the fault phenomenon first as general judgment, then remove the check.

Proper use of rolling bearing is to reduce bearing fault, extend the reliable guarantee of bearing life, which include the correct installation and reasonable lubrication.

A, the rolling bearing used correctly

1. NSK bearing tear open outfit

Bearings shall be cleaned before installation. When installed, should use a special tool will ChengPing straight uniform pressure into the auxiliary, don't use hammer percussion, particularly prohibit direct in bearing on percussion. When the bearing loops and a hole with loose, shall repair a hole or replace bearing, do not use in bearing on the surface with hemp dot or pad TongPi method to use force. Remove the bearing should be used when appropriate, will pull the bearing, do not use the chisel, hammer, striking the bearings.

2. NTN bearing lubrication

The rolling bearing commonly used lubricant oil and grease have two. When the circumference of the shaft speed less than 4-5 m/s, or cars can't use lubricating oil, the position is lubricated by grease.

Grease lubrication is sealed the advantages of simple structure, grease not easy loss, effected by temperature is not big, add grease can use a long time.

Use a grease to pay attention to two questions, one is to follow your car manual request, choose the right type of grease. For example, the water pump bearing is unfavorable choose and manufactured on, because of its water resistance is poor. 2 it is to join the bearing grease want right amount, average filling bearing the cavity 1/2-l / 3 advisable, too much useless not only, still can increase bearing operation resistance, make warming fever. Special attention should be paid to is car wheel bearing, want to advocate "empty hub lubrication", that is only in NACHI bearing of layer of the tu yi on a moderate amount of grease can, otherwise, not only waste heat and bad, still can make heat grease spill, which may affect the braking performance.

The advantages of the lubricating oil are friction small resistance, and can heat dissipation, mainly used for high speed and working environment high temperature of the bearings. Oil's brand according to the requirements of the car manual selection, and car maintenance cycle change in time, let out the old oil to clean institutions added again new oil, the oil should be added to the provisions of the line, or and refueling mouth the battery pack (as the car specific structure, request), not more.



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