Patent ID: 7618192
Filing Date: 2009-11-17
Classification: F16C

Abstract:
1. A ball bearing for use in medical and dental applications comprising: an inner race and an outer race coaxial with the inner said outer race having a bottom surface on which is provided a groove for accommodating a retaining ring and a cover disk, said retaining ring having an inner side and an outer side and said cover disk being positioned adjacent said inner side of said retaining ring; bearing balls disposed between said inner race and said outer race; and a cage comprising a composite material of heat cured epoxide resin as well as fibers which are implemented as a carrier material for the epoxide resin, the fibers being filled with lubricant; wherein said bearing balls are guided by said cage, and wherein one of said inner race and said outer races rotates at a rate of about 500,000 rotations per minute, and wherein said ball bearing has an outer diameter of 30 mm or less.