Ball joint for automobile transmission linkage

摘要

A ball joint for transmission rods in motor vehicles comprising a bearing member made of a plastic material and arranged between a ball head (2) and a joint housing (1). The bearing member exerts a radial pressure on the ball head and comprises an outer shell (4) having a spherical inner surface (16) and an inner shell (5) having a spherical inner surface (17). To preload the ball head (2), as independently as possible of dimension variations and to elastically damp shock loads, the outer shell (4) is made of a hard resilient plastic material, the inner shell has stop surfaces (21) on an end surface (18) thereof, is supported by resiliently deformable elevations (19) against the outer shell, and groove-like openings (20) are formed between the resiliently deformable elevations (19) and the stop surfaces (21), into which openings the elevations (19) are elastically deformed. The stop surfaces (21) contact the outer shell (4) when the elevations (19) are completely deformed into the openings (20).