Ceramic bearing

Details Ceramic bearing Ceramic bearing

1990-10-11

1992-03-10

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

3849071, F16C 1704

Patent

active

050945505

ABSTRACT:
A ceramic bearing includes a fixed ring and a rotary ring. The fixed ring has an outer cylindrical surface dimensioned for an interference fit in a bore of a machine. The fixed ring also has an end surface for contacting a bottom of the bore, and an opposite end surface which includes an annular groove. The groove has a curved bottom surface and a pair of opposite wall surfaces. The rotary ring has an inner cylindrical surface dimensioned for receiving a journal of a rotatable shaft. The rotary ring also has an end surface which includes an annular projection. The projection has a curved top surface and a pair of opposite side surfaces. A radial load on the shaft is transmitted to the machine through surface contact of the projection side surfaces and the groove wall surfaces. A thrust load on the shaft is transmitted to the machine through surface contact of the projection top surface and the groove bottom surface. In another embodiment, the thrust load is transmitted through surface contact of the rotary ring end surface and the fixed ring opposite end surface.

REFERENCES:
patent: 1407186 (1922-02-01), Brown
patent: 1966795 (1934-07-01), Garrison
patent: 3027205 (1962-03-01), Atkinson
patent: 3075816 (1963-01-01), Harris et al.
patent: 4132453 (1979-01-01), Burrus et al.

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