Originally Posted by
Duragrouch
The answer is that something is worn unevenly, or bent, or originally manufactured with a runout (defect). I'd swap out parts or measure to see what is bad, and if unable, then I'd run the preload to the upper limit of tolerance at the orientation of highest preload, in the hope of minimizing the free play.
Agree. Back in the day when only the highest-end components could be adjusted so as to have no play with no binding, you just had to accept some play. If you ran with a bit of binding of the bearings, their life was pretty short.