Dust cover for ball joint

摘要

A dust cover (10) for use in combination with a ball joint comprises a small open end part (11), a large open end part (12) and a body part (14) extended between the small open end part (11) and the large open end part (12) and bulging radially outward. The large open end part (12) has a holding section (12f) and skirt section (12s) flaring from the holding section (12f) toward its free end. The skirt section (12s) has a substantially uniform thickness (s) greater than the thickness (t) of the holding section (12f). The holding section (12f) of the large open end part (12) has a circumferential contact surface (12n) provided with annular lips (12p). The skirt section (12s) having the great thickness s is unable to slip through the space between a circlip (40) and the bottom surface (32b) of the dust cover holding groove (32) of the socket (30). The annular lips (12p) are effectively compressed by the fastening force of the circlip (40) to secure a high sealing joint. <IMAGE>