Wheel Bearing: Testing and Inspection

Wheel Nut and Bearing Check
1. Inspect each wheel disc for dents, distortion and cracks. Disc in badly damaged condition must be replaced.





2. Check wheel nuts for tightness and as necessary, retighten them to specification.
Tightening torque
Wheel nut (a): 100 Nm (10.0 kg-m, 72.5 ft. lbs.)





3. Check wheel bearing for wear. After retightening lock nut to specified torque, apply dial gauge (1) to wheel hub center and measure thrust play. When measurement exceeds limit, replace bearing.
Wheel bearing thrust play limit
0.05 mm (0.002 inch)





4. By rotating wheel actually, check wheel bearing for noise and smooth rotation. If defective, replace bearing.