| 摘要 |
PROBLEM TO BE SOLVED: To enhance the reliability and durability of a flanged cylindrical roller bearing operated at high speed under radial load and axial load. SOLUTION: Outward flanges 16a and 16b, an inward flange 17, and a flange wheel 19 have their respective inner surfaces 22a, 22b, 23 and 24 inclined. At both axial end faces of each cylindrical roller 14, portions opposite to the inner surfaces 22a, 22b, 23 and 24 are crowned. The axial length of a clearance present between each axial end face and each inner surface of each cylindrical roller 14 is 0.001 to 0.005 times the overall length of each cylindrical roller 14. Differences in axial dimension among the cylindrical rollers 14 are set not more than 6 μm. |
