DEVELOPING UNIT, PROCESS CARTRIDGE, AND ELECTROPHOTOGRAPHIC IMAGE FORMING APPARATUS

摘要

PROBLEM TO BE SOLVED: To prevent separation of a through-hole part molded of a second molding from a bearing base portion molded of a first molding by regulating a development drive force input shaft and an Oldham coupling in the axial direction of the development drive force input shaft in a further inexpensive configuration in a bearing formed of at least two types of resin materials with different compositions.SOLUTION: A shaft member is configured to have a surface formed by making a shaft diameter in one end side narrower than a central part by one size in the axial direction of the shaft member and extending in the direction crossing with the axial direction of the shaft member. A second molding includes a first contact part coming into contact with the surface of the shaft member, and a first retainer part that is overlapped with a first molding in the axial direction of the shaft member.SELECTED DRAWING: Figure 1