Two-piece oil wiper ring, has bearing surface rod provided with wear protection section and exhibiting symmetrical round surface chamfer such that surface chamfer running from edges of running surface rod begins with radius

摘要

The ring (1) has a base (2) provided with bearing surface rods (4, 5). A spring unit (3) is arranged radially behind the base. The bearing surface rod provided with a wear protection section exhibits a symmetrical round surface chamfer such that the surface chamfer running from edges (4`, 4``, 5`, 5``) of a running surface rod begins with a radius (R1) and the radius of the bearing surface rod at the axial centre changes into larger radius. The wear protection section is designed as thermal spraying section.