ROTATIVELY SUPPORTING DEVICE

摘要

PURPOSE:To favorably transmit electric signals for a long term between a non-rotation member such as a shaft and a rotation member such as a housing. CONSTITUTION:A shaft l and a housing 2 are assembled through rolling bearings 3, 3 in a relatively rotatable manner. A sealed space 10 separated from the outside is provided between the outer circumferential face of the shaft 1 and the inner circumferential face of the housing 2. Electrically conductive grease 11 is enclosed in the sealed space 10.