RUNNING DEVICE FOR DUMP TRUCK

摘要

Provided is a running device for a dump truck in which a flange on which a bearing for supporting the portion of a shaft that is located between a motor and a speed reduction device is provided can be easily provided on an inner peripheral surface of a spindle by casting. A spindle (10) is formed of a vehicle body side member (10c) secured to a vehicle body of a dump truck and a speed reduction device side member (10d) which is located closer to the speed reduction device (14) than the vehicle body side member (10c) and which is connected to the vehicle body side member (10c) by welding. (10e indicates the connected portion). The speed reduction device side member (10d) is disposed on the outer periphery side of the portion of the shaft (13) that is located in a position where the distance to a coupling (40) which forms a joint between the motor (8) and the shaft (13) and the distance to a first sun gear (15a) which forms a joint between the speed reduction device (14) and the shaft (13) are identical. A flange (10f) to mount a support bearing (50) thereto is formed on the inner peripheral surface of the speed reduction device side member (10d) by casting, together with the speed reduction device side member (10d).