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US 2006/0078244 A1Published application
Hybrid bearing
AssigneeLG Cable Ltd.
InventorsJoon Lee, Chang Lee, Jun Kim
Life of this patent
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Abstract
The present invention relates to a hybrid bearing, and more particularly to a bearing structure in which ceramic balls are used to reduce friction of a rotating shalt during high-speed and low-speed rotation of the rotating shall, and a corrugated elastic plate, formed through multiple bending, is provided abut against the outer circumference of the outer ring of a bearing in order to absorb shock applied to the ceramic balls, thereby eliminating the need to supply lubrication oil.
Claims6
A hybrid bearing comprising:
- an inner ring fitted on the outer circumference of a rotating shaft adapted to transmit rotation power to the bearing, the inner ring rotating along with the rotating shaft;
- an outer ring fitted to be spaced apart from the inner ring by a predetermined distance;
- a retainer interposed between the inner ring and the outer ring, the retainer being mounted with a plurality of balls;
- an elastic member fitted to surround the outer circumference of the outer ring in order to absorb shock applied to the balls, the elastic member having a predetermined elasticity so as to be compressed or restored due to the shock applied to the balls;
- and
- a case located external to the elastic member to position the elastic member so that the elastic member comes into contact with the outer ring.
3 more elements
Dependencies are inferred from the claim text.