How Much Play Should Be Allowed for a Hub and Bearings on Hub and Rotor # KHR138XL10

Expert Reply:

As far as how much play there should be in a hub once installed, normally when you mount a hub and tighten down the spindle nut you need to allow for 0.001 to 0.007 inches of end play for the bearings.

This can be achieved by tightening the spindle nut while turning the hub. Once there is a slight bind on the bearing you know the parts are seated correctly. You will then back the spindle nut off up to 1/4 turn to achieve the 0.001 to 0.007 inches.

The nut was engineered to allow for this specific tolerance. Once you have tightened the nut and seated the bearings, just back off the nut to the next opening the tang or pin can go through. You can use a feeler gauge between 0.001 and 0.007 inches to check for space behind the nut when you push on the hub if you really wanted to.

At about the 4:50 mark in he video I linked our installer shows how to tighten the nut properly.

expert reply by: Michael H