Ball bearing assembly electromagnetic clutch having ball bearing assembly and gas compressor utilizing electromagnetic clutch
AssigneeSeiko Instruments Inc.
InventorHidehisa Takatsu
Life of this patent
Estimating the term…
Abstract
An electromagnetic clutch having an electromagnet, a rotational member mounted to undergo rotation, an armature selectively coupled to the rotational member for rotation therewith when the electromagnet is energized, and a ball bearing rotatably supporting the rotational member. The ball bearing has an inner race, an outer race, and a plurality of balls arranged in a plurality of rows each containing an odd number of the balls. The balls of the ball bearing are disposed between the inner race and the outer race so that each of the balls contacts the inner race at at least one point and contacts the outer race at at least one point.
Claims18
An electromagnetic clutch comprising:
- an electromagnet;
- a rotational member mounted to undergo rotation;
- an armature selectively coupled to the rotational member for rotation therewith when the electromagnet is energized;
- and
- a ball bearing for rotatably supporting the rotational member, the ball bearing having an inner race, an outer race, and a plurality of balls arranged in a plurality of rows each containing an odd number of the balls, the balls being disposed between the inner race and the outer race so that each of the balls contacts the inner race at at least one point and contacts the outer race at at least one point.
A ball bearing assembly comprising:
- an inner race;
- an outer race;
- and a plurality of balls arranged in a plurality of rows each containing an odd number of the balls, the balls being disposed between the inner race and the outer race so that each of the balls contacts the inner race at at least one point and contacts the outer race at at least one point.
An electromagnetic clutch comprising:
- a rotor mounted to undergo rotation;
- a stator mounted to undergo rotation and having an electromagnet;
- a rotational member connected to the stator for rotation therewith;
- an armature selectively coupled to the rotational member for rotation therewith when the electromagnet is energized;
- and a ball bearing for rotatably supporting the rotational member, the ball bearing having an inner race connected to the stator, an outer race connected to the rotor for receiving a radial load during rotation of the rotor, and a plurality of balls arranged in a plurality of rows each containing an odd number of the balls, the balls being disposed between the inner race and the outer race so that each of the balls contacts the inner race at at least one point and contacts the outer race at at least one point.
Dependencies are inferred from the claim text.