Claims
- 1. A method of manufacturing a retainer for a roller bearing, comprising the steps of forming in a strip a plurality of roller accommodating pockets arranged at intervals with protrusions projecting from both sides of crossbars between said pockets, ironing said protrusions only or said protrusions and the side faces of said crossbars from both directions of thickness of the retainer along the entire thickness of said crossbars, thereby forming roller stopper lugs on both edges of the retainer, and forming said strip into an annular shape.
- 2. A method of manufacturing a retainer for a roller bearing as claimed in claim 1 wherein said crossbars formed between said pockets are bent in the direction of thickness between their central portion and both ends thereof and wherein the side faces of said crossbars are ironed at said central portions and at said both ends thereof along the entire thickness of said crossbars.
Priority Claims (1)
Number |
Date |
Country |
Kind |
5-300117 |
Nov 1993 |
JPX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/814,008 filed Mar. 10, 1997, abandoned, which is a continuation of Ser. No. 08/345,761, filed Nov. 22, 1994, abandoned.
US Referenced Citations (4)
Continuations (2)
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Number |
Date |
Country |
Parent |
814008 |
Mar 1997 |
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Parent |
345761 |
Nov 1994 |
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