Sealing ring

摘要

A sealing ring is disclosed for sealing a pin which is displaceable chiefly along its axis through a passage in a housing wall into a chamber. A sealing ring housing is inserted into an annular groove in the housing wall. The sealing ring housing encompasses a ring made of wear-resistance material seated on the pin with a small radial clearance and having a large radial clearance in the sealing ring housing. A slide ring is seated on the pin without clearance with a large radial clearance in the sealing ring housing. The invention provides a sealing ring which permits easy axial and radial movement of the pin and prevents the ingress of dirt and humidity into the interior of the housing from the outside through the pin passage.