| 摘要 |
PROBLEM TO BE SOLVED: To provide a cylindrical roller bearing capable of maintaining an oil film of a lubricant for a long period of time and suppressing a steep rise of temperature or seizure. SOLUTION: The cylindrical roller bearing 10 is equipped with: an outer ring 11 having a raceway surface 11a at its inside circumferential surface; an inner ring 12 having a raceway surface 12a at its outside surface; a plurality of cylindrical rollers 13 installed capable of rolling between the outer ring raceway surface 11a and the inner ring raceway surface 12a; and a retainer 14 made of synthetic resin to hold the rollers 13 at a constant spacing approximately in the circumferential direction. The retainer 14 is of a raceway ring guide type and furnished with a surface roughness having approximately parallel directionality with the sliding direction to the guide surface 18 of the retainer 14 and that sliding surface 17a of each pocket part 17 formed at the retainer 14 which makes slide contact with the rollers 13. COPYRIGHT: (C)2009,JPO&INPIT
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