| 摘要 |
PROBLEM TO BE SOLVED: To prevent a spline shaft from becoming difficult to be inserted due to the deformation of the spline formed inside a hub even when a separate member inner ring is pressed against a cylindrical stepped part at the periphery of the hub by large force. SOLUTION: In a bearing unit for a wheel, the separate member inner ring 15 is pressed against the cylindrical stepped part 22 formed at the inside periphery of the hub 14 so that an outside end 36 of the separate member inner ring 15 is brought in contact with a butt surface 35 of the cylindrical stepped part 22. An inside end 37 of a spline hole 24 of the hub 14 is set to locate in the outside direction of a vehicle apart from the butt surface 35 of the cylindrical stepped part 22 with which the outside end 36 of the separate inner ring 15 is brought in contact. COPYRIGHT: (C)2005,JPO&NCIPI |
