| 摘要 |
PROBLEM TO BE SOLVED: To provide an axle supporting structure for a rolling stock provided with a tapered roller bearing having such a structure that prevents seizure between a tapered roller large end face and an inner ring large collar face even during high speed rotation. SOLUTION: This rolling stock axle supporting structure is provided with a shaft and the tapered roller bearing. The tapered roller bearing 11 is provided with an inner ring 12, an outer ring 13, a tapered roller 14 arranged between the inner ring 12 and the outer ring 13, a cage 15 for holding an interval of the tapered rollers 14, and a sealing member for sealing the end of the tapered roller bearing 11. The center of a contact position of the inner ring 12, the outer ring 13, and the tapered roller 14 is within a range of the center X-X' of the effective length of the tapered roller 14 and a position Y-Y' where they move to a large end face side by 10% of the effective length of the tapered roller 14 from the center X-X' of effective length of the tapered roller 14. COPYRIGHT: (C)2007,JPO&INPIT
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