| 摘要 |
PROBLEM TO BE SOLVED: To achieve a plurality of wheel drive devices in which positional relationship of a load point of a driving wheel and a counter car body side bearing is different, by sharing most of parts.SOLUTION: A series of wheel drive devices include a first wheel drive device 100, and a second wheel drive device 100' which drives a wheel 170 of which a load point is at the outer side of a car body for a counter car body side bearing than a wheel 70 which the first wheel drive device drives. The first and second wheel drive devices include common fixing members 34, 38, a rotational member 30, a car body side bearing 46, and a counter car body side bearing 47. In the first wheel drive device 100, the car body side bearing 46 and the counter car body side bearing 47 are lubricated with the same lubricant in the same space 80. In the second wheel drive device 100', a car body side space 80A in which the car body side bearing is arranged and a counter car body side space 80B in which the counter car body side bearing is arranged are partitioned by seal members 90A, 90B, and the counter car body side space 80B is sealed with a lubricant having a higher viscosity than the lubricant in the car body side space 80A. |
