Patent ID: 6653261
Filing Date: 2003-11-25
Classification: C10M,C10N,F16C

Abstract:
A high speed rolling bearing comprising retainers disposed so as to surround respective rolling elements between an outer member and an inner member, the respective rolling elements rolling against a first contact face which is a contact face thereof with the outer member as well as a second contact face which is a contact face thereof with the inner member, wherein the retainers are made of a polyamide, and retain a grease composition, composed of a urea compound thickener and a poly &agr;-olefin base having a kinematic viscosity at 40Â° C. in a range of 50 to 70 mm2/s, and containing 3 to 6 mass % of hydrocarbon molecules containing 28 to 32 carbon atoms, said bearing operating at a speed of not less than 50,000 rpm.