Cryogenic anti-friction bearing with reinforced inner race

Details Cryogenic anti-friction bearing with reinforced inner race Cryogenic anti-friction bearing with reinforced inner race

1990-01-31

1991-03-05

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384476, 384557, 384561, F16C 3364, F16C 4304, F16C 3700

Patent

active

049972979

ABSTRACT:
This invention consists of a bearing (26) designed to operate in a cryogenic environment and which has an inner raceway (30) generally constructed as an annular band fitted by an interference fit to a rotating shaft (12). A pair of annular tension bands (32, 34) are fitted onto opposed sides of the band and function to firmly clamp the raceway (30) to the shaft (12). This occurs because the tension bands are constructed of a material which, when cooled to aproximately -385.degree. F., shrinks more than the raceway (30) and the shaft (12) to which it is fitted. The bands further relax somewhat at room temperature and permit the interference fit between the raceway (30) and the shaft (12) to be sized such that the raceway (30) is not overly stessed.

REFERENCES:
patent: Re26591 (1969-05-01), Kay
patent: 3276282 (1966-10-01), Mansfield
patent: 3304140 (1967-02-01), Hornigold
patent: 3771845 (1973-11-01), Strickler

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