| 摘要 |
PROBLEM TO BE SOLVED: To provide a configuration of a hub clutch installation portion that ensures prevention of the error in assembly. SOLUTION: This configuration is provided with a brake unit that is fixed to a spindle of a vehicle side and presses a cam member in the axial direction by a relative rotation with the cam member on the axle side, and the cam member that moves by being pressed by the brake unit and engages/disengages a clutch for connecting between the axle and a housing case 13 fixed to a wheel hub 9. Axially arranged projecting portions 3a, 15a and recessed portions 3b, 15b are installed in the circumferential direction alternately at the end of connection between the spindle and an outer brake 15, where the projecting portions 3a, 15a respectively have arrow like inclined portions 25, and the recessed portions 3b, 15b have flat planes 27, 27 facing the circumferential direction, in which the inclined portions serve as guide portions for the engagement of the projecting portions 3a, 15a with the matching recessed portions 15b, 3b. |
