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US 4,657,413 AGranted
Bearing device
AssigneeKabushiki Kaisha Toyota Chuo Kenkyusho
InventorsJunzo Hasegawa, Susumu Kawabata, Nobuharu Mimura
Life of this patent
Estimating the term…
Abstract
A bearing device for high-speed rotary machines comprises a first rolling-element bearing having a retainer for holding constant spacing of rolling elements inserted between an inner race and an outer race thereof and also a second bearing for supporting the retainer of the first rolling-element bearing, thereby the retainer of the first rolling-element bearing is prevented from contacting with the inner race or the outer race.
Claims15
A bearing device comprising:
- a first rolling-element bearing comprising an inner race, an outer race, a plurality of spaced-apart rolling elements inserted between the inner and outer races, and a retainer having first and second ends for holding constant the spacing of the rolling elements;
- and
- a second rolling-element bearing having inner and outer races, the retainer of the first rolling-element bearing being connected to one of the races of the second rolling-element bearing and being supported by the second rolling-element bearing, whereby the second rolling-element bearing prevents the retainer of the first rolling-element bearing from contacting the inner race or the outer race of the first rolling-element bearing.
Dependencies are inferred from the claim text.