Cage for needle roller bearings and method of producing same

Details Cage for needle roller bearings and method of producing same Cage for needle roller bearings and method of producing same

1996-12-26

1998-10-27

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

F16C 3346

Patent

active

058269886

ABSTRACT:
The present invention is intended to dispense with the post-processing of the pocket guide surfaces while securing the precision thereof, to improve the precision of the cage and to reduce the manufacturing cost. A cage (1) according to the present invention is formed such that the inner wall surfaces of the thin-walled and thick-walled portions (1a) and (1b) are continuous with each other through taper surfaces (1d) inclined toward the centers and the guide surfaces (1c1) of the pocket (1e) are shearing surfaces q on the pitch circle PCD.

REFERENCES:
patent: 4978237 (1990-12-01), Motohashi et al.
patent: 5011305 (1991-04-01), Breuer et al.

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