Patent ID: 6577832
Filing Date: 2003-06-10
Classification: F16C,G03G

Abstract:
An apparatus for forming an image comprising an electrostatic latent image carrying member and an electroconductive rolling bearing that bears rotation of the electrostatic latent image carrying member;the electroconductive rolling bearing comprising an outer ring and an inner ring, which are fixed to a pair of members relatively rotating, respectively, plural rolling elements rolling between the inner ring and the outer ring under receiving a load, and a lubricant filled between the outer ring and the inner ring that contains an electroconductive substance dispersed therein; a resistance between the inner ring and the outer ring being about 15 k&OHgr; or less in terms of a maximum value and about 8 k&OHgr; or less in terms of an effective value under a dynamic condition, where a radial or thrust load acting between the inner ring and the outer ring is 10 N, and a relative difference in rotational velocity between the inner ring and the outer ring is 150 rpm; and the electroconductive rolling bearing being used at a relative difference in rotational velocity between the inner ring and the outer ring of about 75 rpm or more.