BALL JOINT FOR AUTOMOBILE

摘要

PURPOSE: To simply and inexpensively restrain axial vibration in both axial directions by providing measures for defining radial surfaces for limiting the axial motion of a casing relative to an outer bushing by two side surfaces of a flange unmovably coupled to the casing. CONSTITUTION: A ball joint is used in a running device part of an automobile. A joint ball 2 of a joint pin 1 is journalled in a casing 3 through the intermediary of a bearing shell 4. The casing 3 is fitted in a rigid outer bushing 10 together with an elastomer sleeve 9 surrounding the casing 3 so as to be axially movable. The radial surfaces of the casing 3 and the bushing 10 limit the axial movement of the casting 3, relative to the outer bushing 10. In this case, the radial surfaces are defined by both side surfaces of a flange unmovably connected to the casing 3 and formed of, for example, a clip ring 15. The flange 15 is located between opposed radial surfaces of the bushing 10 with an axial motion space therebetween.