| 摘要 |
PURPOSE:To prevent lowering of anti-vibration effect due to heat by using low viscosity lubriant for thrust bearing lubrication and high viscosity lubriant for oil film which provides shearing damping, and by connecting the low viscos ity lubricant to an oil tub thermally by a heat transfer. CONSTITUTION:A moveble body 21 provides a projecting peripheral wall 26 extending upward on an upper face peripheral edge portion of a disc type movable main body 25 by projection. The projecting peripheral wall 26 constructs an oil basin accom-modating low viscosity lubricant P1 with the movable main body 25, and the low viscosity lubricant P1 is accommodatad inside the wall 26 and the high viscosity lubricant P2 is accommodated outsid the wall 26 respectively. And the low viscosity lubricant P1 and an oil tub 22 are connected by a heat transfer 23. As the result, the heat generated in a thrust bearing 7 and transmitted to the low viscosity lubricant P1 is transmitted to the oil tub through the heat transfer 23, and discharged through coolant 31 flowing in a coolant flow path 30 of the oil tub. |
