Patent · US Expired

Method of making a thin-walled bearing bushing

US4478066A · kind A · utility

5Cited by

2References

2Claims

0Family size

Assignee

SKF Kugellagerfabriken GmbH · DE

Inventors

Armin Olschewski · Schweinfurt, DE
Hermann Hetterich · Heidenfeld, DE
Peter Horling · Schweinfurt, DE

Key dates

Filing date	Sep 24, 1982
Grant date	Oct 23, 1984
Priority date	—
Expiry date	Sep 24, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49668
WIPO fieldMechanical elements
WIPO sectorMechanical engineering

Abstract

A method for making by a deep drawing process a thin-walled bearing bushing comprising a cylindrical sleeve section and a bottom section closing one end of the sleeve section having an outer peripheral rim at the juncture of the sleeve and bottom sections of small cross sectional radius including the step of forming an annular groove which is deep relative to the normal thickness of the bottom section and has a sharp profile in one face of the bottom section adjacent the juncture of the sleeve and bottom section, the groove being impressed axially to effect radial displacement of the material outward into the area of the peripheral rim.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.