Patent attributes
To provide a method of producing a torsional damper to prevent an annular rubber undulation in the pressing of the annular rubber between a hub and an annular mass, improve strain durability of the torsional damper, and decrease a press-in load in the press-in of the annular rubber, and enhance axial and radial run-out accuracy of the annular mass to a hub bore portion. To this end, in the method of producing the torsional damper made by pressing the annular rubber in an axial direction between the hub and the annular rubber, a silane coupling agent is applied to the hub faces and the annular mass between which faces the annular rubber is pressed, and the agent is dried. A fitting liquid is then applied to any one of the hub, the annular mass or the annular rubber, and the annular rubber is pressed between the hub and the annular mass.
