To provide a bearing for a railway vehicle which can inhibit peeling of a material in the bearing and achieve high reliability and long life.SOLUTION: A double row taper roller bearing (an axle bearing for a railway vehicle) 20 has: an outer ring 21; an inner ring 23; and multiple taper rollers (rolling elements) 22 which are disposed between the outer ring 21 and the inner ring 23 in a rollable manner and rotatably supports an axle 50 in which wheels of the railway vehicle are attached to its ends. The outer ring 21 is formed of high carbon chromium bearing steel and the inner ring 23 is formed of carburization bearing steel.SELECTED DRAWING: Figure 1
【課題】軸受内部の材料のはく離を抑制することができるとともに、高い信頼性と長寿命化を実現することができる鉄道車両用軸受を提供する。【解決手段】複列円錐ころ軸受(鉄道車両用車軸軸受)20は、外輪21と、内輪23と、外輪21と内輪23との間に転動自在に配置される複数の円錐ころ(転動体)22と、を有し、鉄道車両の車輪が端部に取り付けられた車軸50を回転自在に支持する。外輪21は、高炭素クロム軸受鋼により構成され、内輪23は、浸炭軸受用鋼により構成されている。【選択図】図1
AXLE BEARING FOR RAILWAY VEHICLE
鉄道車両用車軸軸受
2024-01-17
Patent
Electronic Resource
Japanese
Bearing for railway vehicle, axle box device, railway vehicle and control method
European Patent Office | 2024
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