Car maintenance, wheel hub bearing inspection and refitted adjustment - bearing knowledge

Examine bearing of wheel hub bearing and the bearing race, found a crack, pitting, fatigue spalling and bearing roller loose phenomenon, should replace the bearing. Check the wheel hub bearing and the bearing race, found a crack, pitting, fatigue spalling and bearing roller loose phenomenon, should replace the bearing. Check the bearing inside diameter and shaft neck to cooperate, fit clearance should not be greater than zero. 10mm。 The clearance should be in vertical ground up and down two parts ( The place for the biggest wear parts) Measurement. If the use of fit clearance in excess of the prescribed limits, a bearing should be replaced. Refitted and adjustment after check all parts meet the requirements, the inner bearing after daub grease into the wheel hub. Outside the hub and return to the journal bearing is installed, adjust the shaft head nut screw on with the hand, and then with the shaft head wrench torque tighten the adjusting nut according to the rules. After tighten nut, should turn right or left wheel a few laps, observe the bearing installation. On the other hand, by rotating bearing and the seat right to cooperate. The bearing appropriate tightness, felt by the free rotation of the wheels is not out of the axial clearance. Finally installed in turn lock plate, a fixed nut, tire, dust cover and decorative cover, etc. Wheel hub bearing adjustment, make the vehicle around 10 km, stop check, with the temperature of wiping his hands on the wheel hub, if fever, adjust the tight, for bearing should be readjusted.