| 摘要 |
PCT No. PCT/JP93/01662 Sec. 371 Date Jun. 8, 1995 Sec. 102(e) Date Jun. 8, 1995 PCT Filed Nov. 12, 1993 PCT Pub. No. WO94/13504 PCT Pub. Date Jun. 23, 1994A lubricating structure for a wheel driving apparatus in which a wheel hub (7) is rotatably supported by a wheel mounting body (1). An output side of a hydraulic motor (31) is attached to the mounting body and is coupled to a drive shaft (6) which is engageably inserted into a shaft bore (50) of the wheel mounting body. The drive shaft is coupled to the wheel hub via a reduction gear mechanism (10) and a clutch mechanism (11), and a braking mechanism (37) is mounted between the wheel hub and the wheel mounting body. The lubricating structure is characterized in that an annular space (51), formed between the shaft bore and the drive shaft, communicates via individual lubricable portions with a lubricant oil inlet (103) and a peripheral port (55). Also, the lubricant oil is supplied from the lubricant oil inlet and is discharged from the port.
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