Inner raceway with axial extension

摘要

An inner raceway (3) having a rolling element raceway facing radially outward, for an angular contact bearing arrangement, and particularly an angular ball bearing arrangement, where a cylindrical surface which is situated at the furthest outward position radially is included as a seal seat. Such inner raceways are used in wheel bearing units, for example, which have an orbital rivet bond, which in turn can also form an end-face gearing (7). The orbital rivet bond and the axial extension (8) of the inner raceway form an annular gap (20) which leads to a configuration where a decoupling of loads from the inner raceway (3) prevents an undesired deformation of the same. In addition, advantages result from the sealing of the region of the orbital rivet bond and/or the end-face gearing (7) thereof.

主权项

1. An inner raceway, comprising:
a rolling element raceway for an angular ball bearing arrangement; an axial end face having a first portion and a second portion radially inward of said first portion; a cylindrical surface operatively arranged to provide a seal; and, an axial extension extending axially between said first and second portions of said axial end face and positioned opposite said rolling element raceway axially, said axial extension comprising:
an outer periphery arranged radially inwardly of said cylindrical surface; andan inner periphery arranged radially inwardly of said outer periphery.