| 摘要 |
PROBLEM TO BE SOLVED: To surely prevent the eccentricity of a photoreceptor drum at the rotating time. SOLUTION: This photoreceptor drum 2 includes a drum main body 4, flange members 6 and 8 force-fitted into an inner peripheral surface of both end parts in the axial direction of the main body 4, and is mounted between a side wall and another side wall in freely rotationally. On the outer peripheral surface on both end parts of the drum main body 4, each bearing 10 and 12 is mounted by making several inner ring 10a and 12a is force-fitted to the outer periphery. The each force-fitted width in the shaft direction corresponding to the inner peripheral surface of the drum main body 4, of the flange members 6 and 8 is regulated to the length or above of the each inner bearing 10a and 12a in the axial direction. |
