Manufacturing method of half-split bearings

Details Manufacturing method of half-split bearings Manufacturing method of half-split bearings

1992-05-04

1993-04-06

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

29898057, B21D 5310

Patent

active

051991705

ABSTRACT:
This invention pertains to a method of manufacturing a half-split bearing, comprising the steps of: providing a blank having a width corresponding to a width of a final said half split bearing: first bending opposite ends of the blank by a first punch and die set while restraining a central portion of the blank in a wall-thickness wise direction, the restraining produced by clamping the blank between a restrainer located centrally on the punch of the first punch and die set and the die of said set, thereby forming a partially processed bent blank having first bending; further, bending in a second stage said partially processed bent blank by a second punch and die set beginning at points between the first bendings and said restrained a central portion while continuing to restrain restraining the central portion of the partially processed bent blank in the wall-thickness wise direction, the restraining produced by clamping the partially processed bent blank between a restrainer located centrally on the punch of the second punch and die set and the die of the set, said bending in a second stage forming to form a substantially half-circular blank; reducing a circumferential length of the substantially half-circular blank while restraining the substantially half circular blank in the wall-thickness wise, widthwise and circumferential directions between a third punch and die set, thereby forming a half-split bearing of a predetermined size.

REFERENCES:
patent: 625789 (1899-05-01), Macbeth
patent: 1906273 (1933-05-01), Klocke
patent: 1924230 (1933-08-01), Davis
patent: 3455004 (1969-07-01), Tethal
patent: 3863485 (1975-02-01), MacDonald
patent: 4180895 (1980-01-01), Spikes et al.

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