| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an axle box device preventing deterioration of lubricating oil itself accompanied by rise of the temperature of the lubricating oil or early deterioration of a member comprising plastic or rubber, by restraining rise of the temperature of the lubricating oil caused by agitation heat especially during high speed traveling of a railroad vehicle. Ž<P>SOLUTION: The axle box device 1 is provided with an oil sump 38 for reserving the lubricating oil in which a rolling element of a rolling bearing is immersed on a lower side than an axial end part in an inside of a housing 5 housing the rolling bearing for supporting the axial end part of an axle and the axial end part. A pocket 58 for temporality keeping the lubricating oil 7 splashed to the upper part than an oil level 57 is provided on the upper part than the oil level 57 of the lubricating oil 7 reserved in the oil sump 38 in the inside of the housing 5, and a narrow hole 62 for returning the kept lubricating oil to the oil sump 38 is provided in the pocket 58. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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