| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for enabling modification of wheels and a travel body traveling on traveling rails for relative displacement in an axial direction of the wheels easily at relatively low cost.SOLUTION: Provided is a bearing eccentricity coupling pin 1 including: a shaft body 2; a first flange 3 and an upper collar 5 for locking an upper bearing 10 at a position at which an axial center of the upper bearing 10 is eccentric by a preset upper eccentric length &sgr;from an axially central position of the shaft body 2 toward one end of the shaft body 2; and a second flange 4 and a lower collar 6 for locking a lower bearing 20 at a position at which an axial center of the lower bearing 20 is eccentric by a preset lower eccentric length &sgr;from the axially central position of the shaft body 2 toward the end of the shaft body 2, a sum of the upper eccentric length &sgr;and the lower eccentric length &sgr;being equal to a preset planned displacement length. |
