The same thing happens on my downhill longboards. If I tighten the wheelnut with no spacers, the bearings get squeezed together and bind.
I have an aluminum spacer between the bearings that only touches the inner race, this permits the wheel nut to be tightened as much as possible without binding.
I also have very small, thin washers that fit between th ewheel nut and bearing on the outside of the wheel, and the same thing between the truck and the wheel. These washers make sure that he only surface of the bearing that is contacted by a stationary surface is the inner race.
Need picks?
Jon
|