| 摘要 |
PURPOSE: To relieve contraction stresses at the time when a rubber layer for supporting an inertia ring on a hub ring is cured by radially spreading out the circumferential surface of the hub ring until an elastic limit is exceeded, after a rubber mixture is cured, and radially compressing the inertia ring to adjust the dimensions. CONSTITUTION: A hub ring 1 and a rubber ring 2 for connecting the hub ring to an inertia ring 3 are deformed after curing the rubber ring 2. That is, since the hub ring and the rubber ring are deformed as shown by the arrow following the curing and cooling of the rubber ring 2, a contour drwn by a series of successive lines is finally obtained. With the contour, contraction stresses formed in the rubber ring 2 especially in the process of hot curing and the following cooling, are almost elimianted or changed into pre-compression. In this way, the life of a torsional vibration damper lastly obtained is remarkably improved. |
