A shaft bearing for supporting a shaft of a motor vehicle includes an inner sleeve, an outer body surrounding the inner sleeve while forming a gap, and an elastomer body elastically connecting the inner sleeve and the outer body. The inner sleeve may have a first rolling surface facing towards the elastomer body and against which a first rolling section of the elastomer body abuts. The outer body may have a second rolling surface facing towards the elastomer body and against which a second rolling section of the elastomer body abuts. The two rolling sections may be connected to each other via a fold having a free length. During movement of the inner sleeve relative to the elastomer body and/or the outer body relative to the inner sleeve, the rolling sections may roll the same distance on the rolling surfaces, so that the free length of the fold remains unchanged.

The bushing includes an outer cylinder, an inner cylinder, and an elastic body therebetween. The outer cylinder has a central recess portion recessed from the inner peripheral surface in the radial direction at the central portion in the axial direction, and the thickness of both end portions is thicker than the thickness of the central portion. The central recess portion is formed in a curved shape or having a curved and a straight shape. The inner cylinder has a central convex portion swelling from the outer peripheral surface in the radial direction at a position corresponding to the central recess portion. The maximum outer diameter of the central convex portion is larger than the minimum inner diameter of the inner peripheral surface of the outer cylinder.

The bushing includes an outer cylinder, an inner cylinder, and an elastic body therebetween. The outer cylinder has a central recess portion formed in a curved shape. The inner cylinder has a central convex portion being formed in a curved shape. A distance between a vertex of the central recess portion and the vertex of the central convex portion is smaller than a distance between a point other than the vertex of the central recess portion and a point at which a straight line extending from the point other than the vertex of the central recess portion to an intersection point of the perpendicular line and the axis of the inner cylinder intersects the central convex portion.

A dual compound bushing includes a tube having a first end, a second end, and an intermediate portion extending therebetween. A first elastomeric member having a first durometer value is arranged on the intermediate portion. A second elastomeric member having a second durometer value that is distinct from the first durometer value is arranged at the first end. A ferrule is mounted to the tube at the first end. The second elastomeric member being arranged between the ferrule and the first elastomeric member.

An object of the present invention is to provide a vibration-damping device which enhances the durability of a rubber elastic body; and inhibits the occurrence of voids in an outer cylinder. The vibration-damping device includes: an inner cylinder; a resin-made outer cylinder arranged outside the inner cylinder in a radial direction of the outer cylinder; and a rubber elastic body connecting the inner cylinder and the outer cylinder.

A handling strut connects the powertrain of an automobile to a structural member, such as a panel in the engine bay. The handling strut is comprised of two strut members, one connected to the powertrain, the other connected to the structural member. A shaft attached to one strut member, extends through a bushing provided in the other strut member and an air gap is provided between the bushing and the shaft, such that when the engine is idle, or not accelerating, and in the absence of hard cornering, the strut members are decoupled. The isolation of the strut members when not required to control engine roll, reduces/avoids transmission of noise, vibration and/or harshness.

The invention is based on a holding device (12) for fixing an assembly (10), in particular a pump, to a motor vehicle (14) with an elastomer mount (16) and a fixing element (18) for attaching the elastomer mount (16) in an installation space, in particular a motor vehicle (14), wherein the elastomer mount (16) comprises a substantially annular first holding element (22) and a second holding element (28), wherein the first holding element (22) has an inner region (20) provided to receive the assembly (10), and wherein the second holding element (28) is connected to the first holding element (22) by means of at least one damping element (40), and wherein the fixing element (18) is arranged on the second holding element (28). It is provided that the damping element (40) is arranged mainly in the region of the fixing element (18).

A vibration damper, which enables a spring constant in the axial direction to be increased while reducing a spring constant in the torsional direction and a spring constant in the direction perpendicular to the axial direction, is provided. With dividing surfaces of first rubber parts and dividing surfaces of second rubber parts separated from each other in the direction of the axis, and spaces formed between the dividing surfaces, first outer cylinder parts and second outer cylinder parts are held and fixed by cylindrical members. Using the spaces between the dividing surfaces of the first rubber parts and the dividing surfaces of the second rubber parts, a compression component of the rubber base in the direction of the axis can be maintained while suppressing a shear component of the rubber base in the torsional direction and the compression component of the rubber base in the direction perpendicular to the axis.

A method and system of determining a block cycle for a bushing includes determining event data for a plurality of events corresponding to operating conditions of a vehicle. Based on the event data for each of the plurality of events, data including a maximum force of the bushing and a maximum force angular displacement for the bushing at the maximum force and a minimum force and a minimum force angular displacement are determined. A block cycle is determined comprising the maximum force and maximum force angular displacement and the minimum force and the minimum force angular displacement for the plurality of events.

The present invention is a vibration damping device (1, 2) that includes an external member (11, 21) attached to one of a vibration-generating portion and a vibration-receiving portion; a tubular member (40) attached to the other of the vibration-generating portion and the vibration-receiving portion; and an elastic body (30) which connects the external member (11, 21) and the tubular member (40). The external member (11, 21) includes a frame-like member (11, 21) having a rectangular shape when viewed from the top. In the elastic body (30), a long-side portion (32a) forming a long side of a rectangular shape when viewed from the top adheres to an inner circumferential surface of the long-side portion (12a, 12b) of the frame-like member (11, 21), and a short-side portion (32b) forming a short side of the rectangular shape when viewed from the top comes into contact with the external member (11, 21) in a long-side direction (X) in which the long-side portion (12a, 12b) extends when viewed from the top, in a non-adhering state.