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US 4,909,640 AGranted
Ball bearing
AssigneeC.S.U. Ltd.
InventorTsutomu Nakanishi
Life of this patent
Estimating the term…
Abstract
This invention is to provide a ball bearing which has a performance close to that of the conventional radial ball bearing, is simple in the formation and is low in the cost for such bearing as for fitting the disc of a disc recording and reproducing device or the roller of the drawer of a desk or the like.
Claims12
A ball bearing assembly comprising
- a cylindrical shaft having an outer periphery with an annular groove of part circular cross-section,
- a plurality of balls partly received in said groove and partly projecting therefrom,
- a ring shaped outer race,
- a bearing race,
- said outer race and said bearing race being separate from said shaft and surrounding the outer periphery of said shaft in spaced relation, said outer race and bearing race respectively having inner peripheral surfaces forming ball rolling surfaces in surface rolling contact with said balls,
- said bearing race being secured within said outer race,
- a first pulley member in which said outer race is fixed,
- a second pulley member slidably and rotatably surrounding said shaft,
- resilient means between said first and second pulley members urging the same apart, and
- stop means between the shaft and the second pulley member for limiting relative movement therebetween in one direction of relative sliding of the shaft and the second pulley member.
7 more elements
Dependencies are inferred from the claim text.