Roller thrust bearing cage and manufacturing method thereof

Details Roller thrust bearing cage and manufacturing method thereof Roller thrust bearing cage and manufacturing method thereof

2005-11-15

2010-11-23

Joyce, William C (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S572000

Reexamination Certificate

active

07837394

ABSTRACT:
A cage includes cage pockets for retaining rollers at plural positions along a circumferential direction of an annular plate. A projection extending in thickness direction of the cage is formed at a central part in the circumferential direction on an inner face of the cage pocket to pivotally support the roller. The projection is provided with a chamfered portion (non-contact portion) formed by chamfering an edge in the thickness direction, and a flat portion (contact portion) that is brought into contact with an opposing central portion in the thickness direction on a roller end face of the roller seated in o the cage pocket. The flat portion has a flat length almost equivalent to a displaceable distance of the cage in the thickness direction thereof.

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Notification of Reason(s) for Refusal dated Jul. 14, 2009, with English translation.

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