| 摘要 |
PROBLEM TO BE SOLVED: To attain high rigidity while preventing a decrease of ease in disassembly and assembly by having an axle and an axle hub formed integrally with a plurality of knuckle structural portions formed covering the outer periphery of the axle hub circumferentially, each in a different position. SOLUTION: This device 10 is applicable to a driving wheel provided with a drive shaft 23. In the device 10, a drive shaft outer race portion 4a and a central portion (axle) of a base portion 4c of an axle 4 which rotate together are integrally formed with a hub portion 4b and an outer peripheral portion (axle hub) of the base portion. Therefore, the rigidity of the device 10 is high since it is not necessary to connect them. The knuckle 30 is formed of two knuckle structural portions 30a, 30b which cover above and below the outer periphery of the base portion 4c of the axle 4. During disassembly, if the knuckles structural portions 30a, 30b are disconnected, the drive shaft 23 and the axle 4 are able to be removed from the vehicle body while still connected.
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