Patent ID: 7455626

Claim:
A treadmill comprising: (a) a support frame having a base; (b) a motor frame attached to the support frame along a first pivot line; and (c) a base frame attached to the motor frame, the base frame having: (i) a roller mounted on an axle, the axle including a threaded recess being seated in at least one bushing, the bushing forming an axle extension and being disposed between the motor frame and the base frame to allow the motor and base frames to rotate relative to one another, (ii) a threaded fastener extending through the bushing into the threaded recess of the axle, the threaded fastener being adapted to adjust the position of the roller by engaging with the threaded recess of the axle, (iii) a support bed, and (iv) a belt extending over the support bed and adapted to be driven by the roller; wherein the axle is seated in a second bushing, and the belt urges the axle into the second bushing.