Patent ID: 8157451
Filing Date: 2012-04-17
Classification: F16C,F16F

Abstract:
1. A bearing arrangement, comprising: a shaft configured as an unbalanced mass shaft which is mounted rotatably in a housing and has a bearing journal, an antifriction bearing which encloses the bearing journal, an inner raceway which is fixed to the shaft, and an outer raceway which is fixed to the housing for rolling bodies of the antifriction bearing, the inner raceway or the outer raceway having a diameter which is variable in a longitudinal direction of the shaft and is adapted to an elastic line of the shaft, wherein the rolling bodies are cylindrical rollers or needle rollers, the raceway with the variable diameter being such that the rollers are in punctiform contact with the inner raceway or the outer raceway at a low rotational speed of the shaft, and are in linear contact with both the inner raceway and the outer raceway at a high rotational speed of the unbalanced mass shaft.