Ceramic bearing and metal shaft assembly

Details Ceramic bearing and metal shaft assembly Ceramic bearing and metal shaft assembly

1990-04-24

1991-03-05

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384537, 3849071, F16C 3362, F16C 1904

Patent

active

049972960

ABSTRACT:
A bearing includes an inner ring made of ceramics. A shaft is made of metal and fitted in the inner ring. The ceramics has a tensile strength equal to or larger than 50 Kg/mm.sup.2, and the ceramics and the metal are determined so as to satisfy the relation of .beta..sub.2 -.beta..sub.1 .ltoreq.6.times.10.sup.-6 /.degree.C. where .beta..sub.1 is a coefficient of linear expansion of the ceramics and .beta..sub.2 is a coefficient of linear expansion of the metal.

REFERENCES:
patent: 4770549 (1988-09-01), Rokkaku et al.
patent: 4792244 (1988-12-01), Yamashita et al.
patent: 4808014 (1989-02-01), Ueda et al.
patent: 4872771 (1989-10-01), Ueno et al.

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