A shock-absorbing device includes a first holding member, a second holding member movably assembled to the first holding member, and an elastic element disposed between the first and the second holding member with two ends of the elastic element pressing against the two holding members. With the elastic element, an elastic shock-absorbing space is defined between the first and the second holding member.

A hydraulic auto-tensioner includes a rod inserted in a cylinder having a bottom and containing hydraulic oil, and a hydraulic damper in the cylinder for damping the push-in force that tends to push the cylinder and the rod in the direction in which the rod is pushed into the cylinder. An oil seal including a dust lip on the inner periphery thereof seals an open end of the cylinder. A rose-shaped snap ring is formed integral with the oil seal.

End mounts are used to secure a helical tension spring to end fixtures with various shapes and sizes. These end mounts contain an inner hole to encase the inner spring end mount and secure the end mount making it like a cap. There is also a keyhole created in the top surface that goes through the end mount allowing it to fit over the fixtures but not over the inner end mount, holding it in place. Grooves are machined in a helical pattern on the cylindrical side wall of the end mount. The spring is wound onto the grooves of the end mount.

A vibration damper for a sensor unit comprises an elastic damping element including a central plate, a plurality of damping fingers joined at a first end to the central plate, and a plurality of fastening surfaces. At least two fastening surfaces of the plurality of fastening surfaces are disposed at a distance from each other in a first spatial direction. The damping element is flexurally elastically soft along the first spatial direction and is formed with a higher stiffness in a main extension plane defined perpendicular to the first spatial direction. A layer of adhesive is applied to each of the at least two fastening surfaces which are configured to be subjected to shear stress as a result of vibrations in the main extension plane.

A vibration damper for a sensor unit comprises an elastic damping element including a central plate, a plurality of damping fingers joined at a first end to the central plate, and a plurality of fastening surfaces. At least two fastening surfaces of the plurality of fastening surfaces are disposed at a distance from each other in a first spatial direction. The damping element is flexurally elastically soft along the first spatial direction and is formed with a higher stiffness in a main extension plane defined perpendicular to the first spatial direction. A layer of adhesive is applied to each of the at least two fastening surfaces which are configured to be subjected to shear stress as a result of vibrations in the main extension plane.

Disclosed herein is a centralizer for being mounted around a centralizer sub body to form a centralizer sub. The centralizer comprises first and second opposing end collars arranged, in use, to be positioned around a longitudinal axis of the centralizer. The centralizer also comprises a plurality of spring bows extending from the first end collar to the second end collar. The first end collar may comprise first and second end regions arranged, in use, to face one another. The first and second opposing end regions may comprise first and second engaging elements respectively. The first end region may be configured to be connected, in use, to the second end region via the first and second engaging elements. Also disclosed is a centralizer sub and an engaging device for use in forming a centralizer.

Disclosed herein is a centralizer for being mounted around a centralizer sub body to form a centralizer sub. The centralizer comprises first and second opposing end collars arranged, in use, to be positioned around a longitudinal axis of the centralizer. The centralizer also comprises a plurality of spring bows extending from the first end collar to the second end collar. The first end collar may comprise first and second end regions arranged, in use, to face one another. The first and second opposing end regions may comprise first and second engaging elements respectively. The first end region may be configured to be connected, in use, to the second end region via the first and second engaging elements. Also disclosed is a centralizer sub and an engaging device for use in forming a centralizer.

A clutch disc for a disengaging torque transmission device includes a carrier plate on which a friction lining is provided for non-positive closure of the torque transmission device. At least one vibration-influencing area is formed on the carrier plate for influencing the vibration behaviour of the clutch disc, in particular for damping at least one defined clutch disc vibration, the vibration-influencing area being formed by an opening and/or by an impression on the carrier plate.

A yielding fuse for use in a brace assembly includes a first body portion configured to be connected at one end to a side of a brace member of the brace assembly, and a second body portion configured to be connected at one end to another side of the brace member of the brace assembly. The first and second body portions are positioned so as to be disposed on opposite sides of an axis defined by the brace member, with each of the first and second body portions further including a base displaced from the axis, a plurality of yielding arms extending from the base towards the axis and at least a first connecting plate rigidly connecting the first body portion to the second body portion. Preferably, a second connecting plate is also provided.

A biasing device that returns to a rest position when the biasing device is subjected to one of a first compression by a first object and a first tension by a second object in which the first tension causes a second compression of a third object, in which the first compression causes a second tension of the third object, in which elongation of the rod assembly simultaneously occurs with the first tension and the second compression, and in which elongation of the rod assembly simultaneously occurs with the second tension and the first compression.