Bearing retainer for a sliding mechanism for use in a machine to

Details Bearing retainer for a sliding mechanism for use in a machine to Bearing retainer for a sliding mechanism for use in a machine to

1997-11-17

1999-04-13

Footland, Lenard A.

Bearings

Linear bearing

Roller bearing

F16C 2904

Patent

active

058936475

ABSTRACT:
This invention provides a bearing retainer for a sliding mechanism for use in a machine tool, especially a press. The bearing retainer has a tubular or generally cylindrical retainer body. The retainer body has a plurality of supporting holes to support rollers. Tongue-like portions are formed at the edge portions of each supporting hole for preventing a roller from falling out of the supporting hole. Cavities are provided between the adjacent supporting holes. Each cavity permits the edge portion including the tongue-like portion to deform elastically in the direction that the aperture of each supporting hole will be enlarged on the outer side surface of the retainer body. Thus, when the outer mold has moved away from the inner mold during the injection molding process of the retainer the retainer can be obtained from a mold set without cracking or breaking the tongue-like portion of the retainer. In this way, the tongue-like portion can be molded on the outer side surface of the retainer by injection molding process. As a result of this, caulking process for forming the tongue-like portion is not required and manufacturing cost can be reduced.

REFERENCES:
patent: 3582161 (1971-06-01), Hudson
patent: 4664534 (1987-05-01), Hanaway
patent: 5033878 (1991-07-01), Tsuji et al.
patent: 5345679 (1994-09-01), Lennon et al.

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