A speed reducer includes an input shaft configured to receive power from a drive portion, a gear unit fastened to the input shaft to receive the power from the drive portion through the input shaft, and an output shaft coupled to the gear unit and configured to transmit driving power, in which the gear unit includes a spur gear coupled to the input shaft, and a mounting gear positioned coaxially with the spur gear and coupled to the output shaft, and in which a rotation angle of the output shaft is decreased by minute deformation of the gear unit.

The present disclosure relates to an assembly for a steering system of a vehicle, the assembly comprising an axle part having a coupling recess, and a steering cylinder having a coupling projection. The coupling projection is received in the coupling recess and an interference fit is formed between the coupling projection and the coupling recess.

A steering damper assembly is provided having a chassis damper stay, a steering rack, and a damper. The chassis damper stay is configured to mate at a first end with a first vehicle chassis frame member and at a second end with a second vehicle chassis frame member spaced apart from the first member. The steering rack and pinion assembly is provided intermediate the first end and the second end and carried by the chassis damper. The damper carried for movement at a first end by the steering rack on the rack and pinion assembly and acting against the chassis damper stay at a second end to dampen movement of the rack, the damper having a preloaded spring resisting extension and retraction of the damper.