| 摘要 |
PURPOSE: To lead lubricating oil smoothly into a housing with relatively simple structure so as to reliably prevent the wear and seizure of the friction sliding face. CONSTITUTION: A plurarity of recessed parts 107 are disposed on the outer surface of the axial end parts 102, 112 of a housing 1, and lubricating oil lead-in through-holes 108 extended in the direction toward the axis line of the housing 1 are formed in the recessed parts 107. |
