Patent ID: 6716105
Filing Date: 2004-04-06
Classification: F16C,F16D,Y10T

Abstract:
A bearing system for a bolt of a universal joint for use in a bearing bore of an articulated yoke in a cardan shaft, the system comprising:the bolt; a radial bearing in the bore for the bolt, the radial bearing comprising an outer ring and first rolling elements; the bolt having a root and an axial bearing being arranged in the region of the root of the bolt; the axial bearing comprising second rolling elements, an element having an outer running surface for the rolling elements of the axial bearing and a thrust ring comprising: the thrust ring having a first end side and a second end side and an inner circumference and an outer circumference; the ring having a central axis, a first axis of symmetry extending across the ring and through the central axis and having a second axis of symmetry at right angles to the first axis of symmetry and extending through the central axis of the ring; the second end side of the ring having first and second surface regions which are symmetrically at opposite sides of the first axis of symmetry and which regions extend to the second axis of symmetry; each of the first and second surface regions is machined to define a change in the cross-section of the thrust ring comprising a reduction in the thickness dimension of the ring between the first and second sides in a region at the inner circumference of the ring and in a region at the outer circumference of the ring wherein the reduction in the thickness dimension in the region of the inner circumference is less than in the region of the outer circumference, wherein the second end side of the thrust ring is an inner running surface for the rolling elements of the axial bearing.