Abstract: In order to make it possible to improve a durability of a cord wound around a connection element and to downsize a cord wound portion, in an elastic coupling structured such that connection elements connected to a drive side yoke and connection elements connected to a driven side yoke are alternately arranged on a circumference, cords are wound around each of the mutually adjacent connection elements so as to form a band shape, and the connection elements and the cords are coated by an elastic material. A single yarn having a twist number of 10 times per 10 cm or less is used as the cords.

Abstract: A center bearing support having an increased shock absorbing capability by a stopper required when the vibrating displacement of a supported shaft is increased, including an inner ring installed on the inner periphery surface of an outer ring fixed to a body side through an elastic body made of elastomer material and a center bearing installed on the inner peripheral surface of the inner ring, wherein a stopper extending convergently is formed at the end part of the flexible main body of the elastic body, and a rib is formed between the stopper and the end part of the flexible main body at a specified phase interval, whereby, because a deformation force given by the contact of the stopper with the outer ring when an excessive displacement is input is absorbed by the displacement of the end part of the flexible main body, an abrupt rise of a spring constant can be suppressed.

Abstract: To substantially increase a slide torque of a fitting type damper formed by press-fitting, an elastic body of a rubber-like elastic material is located between a hub and a massive body from either direction of a shaft. Polymethylene-polyphenyl-polyisocyanate is interposed as a non-slide agent between hub including a metallic part at a boundary of an elastic body or between a massive body including a metallic part at an opposite boundary of the elastic body.

Abstract: To substantially increase a slide torque of a fitting type damper formed by press-fitting an elastic body of a rubber-like elastic material between a hub and a massive body from either direction of a shaft. Polymethylene-polyphenyl-polyisocyanate is interposed as a non-slide agent between a hub including a metallic part and an inner boundary of an elastic body or between a massive body including a metallic part and an outer boundary of the elastic body.