Method for manufacturing fluid bearing

Details Method for manufacturing fluid bearing Method for manufacturing fluid bearing

1995-05-01

1998-06-02

Schwartz, Larry I.

Metal working

Method of mechanical manufacture

Process for making bearing or component thereof

F16C 3300

Patent

active

057584214

ABSTRACT:
A method for manufacturing a fluid bearing of dynamic pressure type by processing an inner peripheral surface of a sleeve bore to form a dynamic pressure-generating groove. An apparatus includes a guide shaft for being coaxially inserted into the sleeve bore while being rotated and fed axially. The shaft has first and second guide holes, and a plurality of balls held in the first and second guide holes. The balls are harder than the sleeve. Also, a diameter of a circumscribed circle about the balls is set to be larger than an inner diameter of the bore of the sleeve.

REFERENCES:
patent: 4228821 (1980-10-01), Stark
patent: 4678348 (1987-07-01), Tielemans et al.
patent: 4866966 (1989-09-01), Hagen
patent: 5265334 (1993-11-01), Lucier
patent: 5339523 (1994-08-01), Hasegawa
patent: 5579579 (1996-12-01), Chen

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