| 摘要 |
PROBLEM TO BE SOLVED: To suppress uneven contact between a roller including a bearing such as bush and a shaft. SOLUTION: The rolling wheel for a crawler type traveling vehicle includes the shaft 2, a roller assembly 3a disposed on an outer periphery of the shaft 2, and the bush 4 rotatably supporting the roller assembly 3a to the shaft 2. The roller assembly 3a has an inside roller shell 12, an outside roller shell 13, and a uniting ring 14. The inside roller shell 12 is disposed on the inside close to a vehicle body frame 8, and has an annular groove 15a having a protrusion 15b inside on an outer peripheral portion of an outside end. The outside roller shell 13 is disposed on the outside of the inside roller shell 12, and has an annular groove 25a having a protrusion 25b inside. The uniting ring 14 engages with the protrusions 15b, 25b of the annular grooves 15a, 25a to unite both roller shells 12, 13. COPYRIGHT: (C)2011,JPO&INPIT |
