Back to results
US 7,246,947 B2Granted
Concentric radii ball bearing stack
AssigneeQA Bearing Technologies Ltd.
InventorStephen Thompson
Life of this patent
Estimating the term…
Abstract
A ball bearing stack which includes more than one bearing arranged in face to face relation and sharing a common rotational axis. Each bearing has an inner ring and a concentric outer ring. The inner ring defines an inner race. The outer ring defines an outer race. A plurality of ball bearings are captured within an annular space defined between the inner race and the outer race. Each of the more than one bearing has a ball bearing contact surface on the outer race which is radiused from face to face about a common centre point positioned on the common rotational axis.
Claims5
A ball bearing stack, comprising:
- more than one bearing arranged in face to face relation and sharing a common rotational axis, each bearing having an inner ring and a concentric outer ring, the inner ring defining an inner race, the outer ring defining an outer race, with a plurality of ball bearings captured within an annular space defined between the inner race and the outer race;
- and
- each of the more than one bearing having a ball bearing contact surface on the outer race which is radiused from face to face about a common centre point positioned on the common rotational axis.
Dependencies are inferred from the claim text.