Wheel runout

A dial indicator should be used to measure wheel runout. In this case, the wheel can remain on the vehicle or be dismantled. In the latter case, the wheel must be fixed on the hub, for example, on a balancing stand. Measurements are taken on the wheel with the tire removed or installed. Radial and axial runout is measured on the inside and outside of the wheel rim. The indicator must be rigidly fixed to a fixed support. The runout is measured by slowly rotating the wheel, according to the indicator for one revolution of the wheel. If the amount of runout is out of range, or wheel vibration cannot be eliminated by balancing, the wheel must be replaced. When measuring the runout, do not take into account errors introduced by wheel surface irregularities, welds, paint smudges, scratches, etc.

Steel wheels: radial runout - 0.8 mm; axial runout - 1.0 mm.

Aluminum wheels: radial runout - 0.7 mm; axial runout - 0.8 mm.