| 摘要 |
PROBLEM TO BE SOLVED: To achieve a sufficient speedup of a spindle internally fitted and supported by a cylindrical roller bearing 3a. SOLUTION: While an inward flange part 20 is provided to the inner peripheral surface of one end of an outer ring 4a, a compression spring 21 and a spacer 22 are arranged between the inside surface of the inward flange part 20 and one end surface of a plurality of cylindrical rollers 6. By pressing one end surface of each cylindrical roller 6 based on elasticity of the compression spring 21, the other end surface of each cylindrical roller 6 is brought into contact with the inside surface of a first outward flange part 9. The one end surface of each cylindrical roller 6 which is a part to which lubricating oil is hard to be supplied during operation is prevented from coming into contact with the inside surface of a second outward flange part 10. By employing this construction, the above subject is attained. COPYRIGHT: (C)2006,JPO&NCIPI
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