| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a travel device for a construction machine, miniaturized by dispensing with conventional screwing of a bearing fixing nut to a travel motor. SOLUTION: A bearing mechanism 30 is composed of a pair of angular bearings provided side by side so that inner races 33, 34 are placed back to back. An outer race 31 of the inner bearing is supported axially outward by a bearing receiving part 23 provided on the inner end side of a hub 20. A fixing member 35 interposed between the inner races 33, 34 is fitted to a motor case 2. An outer race 32 of the outer bearing is supported axially inward by a bearing receiving part 29 provided at a reduction gear cover 22.</p> |
