| 摘要 |
PROBLEM TO BE SOLVED: To provide a rolling bearing of high moment rigidity capable of maintaining high lubricity over a long period by preventing early seizure. SOLUTION: This rolling bearing 2 rotatably supports various pulleys 10 for winding various belts for transmitting driving force to various driving systems of an automobile or various pulleys for winding the various belts for applying torque to a rotary part of an electromagnetic clutch. The rolling bearing has an inner race 4 and an outer race 6 oppositely arranged so as to be relatively rotatable, and a plurality of rolling bodies 8a and 8b rollingly arranged between raceway surfaces 4s and 6s of the inner-outer races. A plurality of rolling bodies are composed of two kinds or more of rolling bodies having a different diameter. At least at unused time, radial clearance of the rolling body of the largest diameter is set to a negative value, and radial clearance of the rolling body of the smallest diameter is set to a positive value. COPYRIGHT: (C)2006,JPO&NCIPI
|
