BELLOWS SEAL FOR PIVOT JOINTS, ESPECIALLY IN AUTOMOBILES

摘要

The invention relates to a bellows seal for pivot joints, wherein a first end of the bellows (3) is tightly and rigidly connected to the joint housing (1). The second end of the bellow (3) tightly and annularly surrounds a tappet (2) and has a radial and sealing surface. Said surface is a front face divided into an inner concave ring surface (10) and an outer convcave ring surface (11). In relation to the axis of the bellow, the angle of inclination of the ring surfaces (11, 10) is approximately alpha = 70 DEG for the external ring surface (11) and approximately beta = 80 DEG for the inner ring surface (10). The radial extension of the outer ring surface (11) is approxiamately 12 % in relation to the radius of the outer ring surface of the ring flange (4) of the second end of the bellow.