What is Axial Play or Axial Thrust?
Axial Play or Thrust is the side movement of the inner race in relation to the outer race. Provisions in the Race Curvature and Contact Angle to allow a good amount of Axial Play or Axial Thrust are what allow Roller Skate Bearings to ROLL freely. This movement is very important because when Skaters push, we always put side load on the skate to get power in the push or stroke. If the Bearing does not allow for this, it will bind and LOOSE operating speed or ROLL.
