Cage production

Details Cage production Cage production

1987-10-19

1988-11-01

Silbaugh, Jan H.

Plastic and nonmetallic article shaping or treating: processes

Mechanical shaping or molding to form or reform shaped article

To produce composite, plural part or multilayered article

264242, 264275, 264130, 291484C, 291484L, B29C 4514, B32B 326, B21D 5312

Patent

active

047818778

ABSTRACT:
A method for the production of a cage made of castable or injection moldable polymeric material for rolling elements of a rolling contact bearing whereby the cage has pockets for receiving the rolling elements and contains a porous lubricant carrier, and the pockets have perforated walls to provide a direct contact between the lubricant carrier and the rolling elements. The cage is made in an injection mold or casting mold provided with cores for forming the pockets, characterized in initially inserting the lubricant carrier (5,24) into the mold (1,19), then closing the mold (1,19) whereby the lubricant carrier is elastically deformed by the cores (12,35,36) and finally surrounding the lubricant carrier (5,24) with polymeric material except at its supporting surface (14,38) and its surfaces engaging the cores (12, 35, 36).

REFERENCES:
patent: 3807146 (1974-04-01), Witkowski
patent: 4243276 (1981-01-01), Persson et al.
patent: 4397802 (1983-08-01), Ernst et al.

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