| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device for axle that is hard to generate abrasion powder in the vicinity between an inner ring and a positioning member and has a long service life.SOLUTION: A fretting prevention part 81 comprising an annular plate is formed in a first sealing device 47. The fretting prevention part 81 is arranged so as to contact with an end surface of a rear cover 3 side in an axis direction of a first inner ring 6 and an end surface of the first inner ring 6 side in an axis direction of the rear cover 3. The fretting prevention part 81 includes: an annular metal ring part 90; and an elastic part 91 fastened over the whole circumference in a circumferential direction to each end surface of both sides of the metal ring part 90 in an axis direction, and contacting with the end surface of the first inner ring 6 and the end surface of the rear cover 3. |
