| 摘要 |
<p>PROBLEM TO BE SOLVED: To surely prevent the generation of a stick slip phenomenon in which a rotating shaft sticks an inside diameter face of a slide bearing due to the coincidence of an inside diameter center axial line of the slide bearing and a center axial line of the rotating shaft.SOLUTION: In a slide bearing unit of a motor M, inside diameter shapes of first and second slide bearings 13, 14 and hole shapes of first and second shaft holes 75 are formed into irregular shapes (for example, inside diameter oblique shapes) with respect to outside diameter shapes of first and second protrusive shaft parts of a motor shaft 5, center axial lines of the first and second shaft holes 75 of the first and second slide bearings 13, 14 are made to be eccentric with respect to a center axial line of the motor shaft 5, thereby a stick slip phenomenon at the slide bearing unit can be suppressed by a simple change, and the generation of a stick slip sound resulting from the stick slip phenomenon can be surely prevented.</p> |
