Abstract: Provided are wedging and clamping mechanisms for securing an axle to a suspension member. The suspension member has a integral axle shell for seating the axle to be attached. An axle wedging shell is provided which mates to the axle shell via aligning angled grooves and flanges which, as the flanges are forced into the grooves, creates a significant clamping force trapping the axle in place. The orientation and placement of angled grooves and flanges varies through several embodiments. Some embodiments alternately use a retention plate. Adhesive may be applied to the axle and the inner surfaces of the axle shell and wedge member to limit axle twist or rotation.

Abstract: Provided is an offset tandem axle assembly system with a pair of walking beams mounted to suspension hangers so that about sixty percent of the overall beam length is oriented between the hanger pivot and a non-driven axle and about forty percent of the overall beam length is oriented between the hanger pivot and the driven axle. A torque rod pivotally connects the non-driven axle to each suspension beam. A single resilient air spring mounted between the non-driven axle and each suspension beam dampens loading and rebound for both the driven and non-driven axles. The non-driven axle can be either a tag axle or a push axle and may be self steering.

Abstract: The present invention provides a suspension beam and bush attachment assembly. The assembly comprises a longitudinally extending control arm, a bush eye clamp, and a mounting bracket. The control arm has a bush end, a mid-region, an axle mount formed opposite of the bush end, and one or more fastener bore. The bush eye clamp is transversely mounted to the bush end of the control arm and has a center bore configured for receiving a bush therein and an axial slot biasing the bushing eye clamp open for bush insertion. To securely position the bush within the bush eye clamp, the mounting bracket is affixed to the bushing eye clamp and has one or more fastener bores substantially aligned with the one or more fastener bores of the control arm such that securing a fastener through each of the bores of the bracket and control arm couples the bracket to the control arm and biases the axial slot into a substantially closed position to contact and compress a perimeter of the bush with the bush eye clamp.