PROBLEM TO BE SOLVED: To provide a bearing device for a railway vehicle which inhibits wear caused by fretting and enables easy assembly work to an axle.SOLUTION: A bearing device 1 for a railway vehicle includes: a bearing 2 including an inner ring 7 having a raceway 6 on an outer peripheral surface, an outer ring 9 having a raceway 8 on an inner peripheral surface, and rolling elements 10 which are held between the raceway 6 of the inner ring 7 and the raceway 8 of the outer ring 9 so as to roll; a sealing device 12 configured to seal a space between the inner ring 7 and the outer ring 9; a front lid 3 and a rear lid 4 for fixing the bearing 2 to an axle S; and a spacer 5 disposed between the inner ring 7 of the bearing 2 and the rear lid 4. Part of the spacer 5 fits in an outer peripheral surface of the inner ring 7.SELECTED DRAWING: Figure 1
【課題】フレッティングによる摩耗を抑制するとともに、車軸への組み付け作業を容易に行うことができるようにする。【解決手段】鉄道車両用軸受装置1は、外周面に軌道6を有する内輪7と、内周面に軌道8を有する外輪9と、内輪7の軌道6と外輪9の軌道8との間で転動可能に保持される転動体10とを備える軸受2と、内輪7と外輪9との間を密封する密封装置12と、軸受2を車軸Sに固定するための前蓋3及び後蓋4と、軸受2の内輪7と後蓋4との間に介在するスペーサ5と、を備え、スペーサ5の一部が内輪7の外周面に嵌合するものである。【選択図】図1
BEARING DEVICE FOR RAILWAY VEHICLE
鉄道車両用軸受装置
2016-08-08
Patent
Electronic Resource
Japanese
Wheel set bearing for railway vehicle and railway vehicle
European Patent Office | 2022
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