| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a bearing for a railroad car capable of preventing leakage of grease even at a high speed rotation range. <P>SOLUTION: The bearing for a railroad car is provided with an inner ring 4 mounted on an axle, an outer ring 5 arranged on an outer periphery of the inner ring 4 by interposing a plurality of rolling bodies 6, ring members 2 and 3 mounted on the axle and regulating an axial position of the inner ring 4 against the axle, and a circular spacer 20 arranged between both breadth faces of the inner ring 4 and the ring members 2 and 3. the circular spacer 20 is made of a different material such as a brass, and its end at the outer diameter is extended outward in a radial direction. A labyrinth gap is formed between the end at the outer diameter of the circular spacer 20 and the bore surface of the outer seal case 12. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
