MODULAR END FACE SEALING Russian patent published in 1997 - IPC

FIELD: sealing engineering. SUBSTANCE: supporting collar is made on a distant bushing. One end face of the centering race is made so that the supporting ring collar embraces the collar with a spaced relation. The opposite end face embraces the collar for permitting a contact with nonoperative end face of the movable friction ring. The rubber collar is made up as a cap L-shaped in the cross-section. The bottom portion of the cap is compressed between the distant bushing and projection on the shaft. The cylindrical portion is fitted with interference on the centering race and in the movable friction ring. The surface of the contact between the centering race and movable friction ring may be spherical. EFFECT: enhanced reliability. 4 cl, 2 dwg