Abstract: A plate or the like for receiving a press-fitted sleeve-like member, such as a ball bearing or the like, is formed with an opening defined by a series of arcuately spaced, axially extending lands alternating with a series of axially extending relieved portions between the lands. The lands define segments of a circle which form a close or an interference fit with the outside surface of the sleeve-like member while the relieved portions define spaces for the flow or movement of excess material during the press fitting of the member into the plate, thereby avoiding exceeding the maximum allowable pressing forces, to reduce the likelihood of distortion of the member. The relieved portions also provide spaces for bonding cement or for lubrication, if desired.

Abstract: A precision gear reduction assembly for a gear train assembly for a gear train incorporates a backlash control in which the intermediate gear shaft has one end only mounted within an eccentric bushing. The bushing provides for the adjustment of the intermeshing of the final two gears of the gear train by tilting the intermediate shaft slightly as the bushing is rotated to achieve the desired degree of backlash control.