U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Method of forming a half-round bearing

Patent 4845817 Issued on July 11, 1989. Estimated Expiration Date: Icon_subject June 29, 2008. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

2814856

3149404

3251119

3350773

3375563

Method of producing split bearing rings
Patent #: 4541157
Issued on: 09/17/1985
Inventor: Tsushima ,   et al.

Method for fabricating an elastomeric bearing assembly Patent #: 4663810
Issued on: 05/12/1987
Inventor: Kramer

Inventor

Assignee

Application

No. 07/212906 filed on 06/29/1988

US Classes:

29/898.054, Sleeve or bushing making384/288, For crankshift384/294For crankshaft

Examiners

Primary: Goldberg, Howard N.
Assistant: Vo, Peter

Attorney, Agent or Firm

International Classes

B23P 15/00 (20060101)
F16C 17/10 (20060101)
F16C 17/00 (20060101)
F16C 33/04 (20060101)
F16C 33/14 (20060101)

Abstract

A half-round bearing including a locating tab for establishing the positioning of the bearing shell when being mounted within a bearing housing. Generating tabs according to the prior art leave a radially outwardly projecting channel in the bearing crown surface which has been found to create slivers during finishing of the bearing shell wall thickness which can adversely influence bearing life. According to this invention, the bearing material is upset by coining in a manner such that the excess material is removed during the parting line broaching operation without causing a burr to be formed on the tab. The burr can prevent proper seating of the bearing shell in the bearing housing which reduces bearing life.

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