Guide bushing with an integrated seal for the clutch-release bearing of a gear unit

Abstract

A guide bushing having an integrated seal for the clutch-release bearing of a gear unit, comprising a connecting sleeve [pipe socket] circumferentially surrounding an input shaft of the gear unit with radial clearance and a mounting flange affixed to the connecting sleeve, whereby, on the side facing the outer wall of the gear unit, the connecting sleeve has an essentially Z-shaped cross-section, whereby the Z-shaped cross-section is comprised of a first axial side piece situated radially to the inside and of a second axial side piece situated radially to the outside, and whereby the first and the second axial side piece are joined by a radial side piece. The seal has a Z-shaped profile that is adapted to the connecting sleeve, whereby the seal is provided on the side facing the input shaft to be sealed off with at least one dynamically stressed sealing lip and, on the side facing the outer wall of the gear unit, with at least one statically stressed second sealing lip, which projects axially in the direction of the outer wall and is able to be forced into sealing engagement with this outer wall. The first and the second sealing lip, while integrally formed to blend into one another, are affixed to a reinforcement ring made of a non-creeping material, whereby the reinforcement ring is retained with radial prestressing in the first axial side piece.

Dependencies are inferred from the claim text.