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Car wheel bearing protection
Source: China Bearing Network Time: 2018-03-16
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First, lift one end of the car demand view; and support it on the safety support; if it is the rear wheel; the brake should be disengaged first; rotate the wheel by hand. Under normal circumstances, the wheel should rotate smoothly; no ears The conflict and the "cracking" sound. When listening to the sound; do not mix the brake pad with the friction of the brake disc and the noise of the bearing change; avoid misjudgment.
Look at the wheel bearing nut; it is necessary to ensure the tightening. The way is; catch the top and bottom of the tire; shake the wheel inward and out; you should not feel a significant swing. If it feels a little loose or not smooth; perhaps the vehicle is now After 50,000 kilometers, the bearing has not been cleaned and replaced with smooth grease; it should be disassembled and viewed. The bearing nut is fixed by the split pin; it should be taken out and discarded; then replaced with a new split pin. If the car bearing is fixed a special lock nut; then; use a punch to loosen it from the groove of the axle. When reassembling; replace it with a new nut. Use a sleeve wrench to unscrew the nut; swing the wheel to remove Gear ring and outer bearing. Remove the tire from the vehicle and place it on two wooden blocks; use a punch to knock down the oil seal at the rear of the hub; the inner bearing will fall off with the oil seal.
Remove all parts completely with a scavenger; place the cleaned bearings on a clean cloth; let them be naturally boring. Look carefully at each roller and roller cage; look at the outer race of the bearing. If it is a roller or seat There is a deeper scratch, shedding or thermal discoloration on the ring; the bearing needs to be replaced.
Apply a new smooth grease to the washed and dried bearings. The method is to evenly smooth the smooth grease into the roller; insert the inner bearing into the hub and install a new oil seal; use a hammer pad to harden the oil seal. In place. Put the wheel on the axle; install the outer bearing and the retaining ring; rotate the hub on one side; tighten the fixing nut on one side; consult the protection manual and tighten the fixing nut according to the rules.
Puncture a new cotter pin; if the hole is not loose, do not tighten the nut; then bend the end of the cotter pin. If the vehicle is a special fixing nut; the locking piece should be bent slightly; fixed; The wheel bearing protection work is completed.
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