Abstract: Supporting device (12) for the wrist during manipulation of a joystick control (10), comprising at least one elongated roller body (14) rotatably mounted in a holder (16) which is designed to be mounted in a mounting (18) adjacent to and behind the joystick (20) with its rotational axis oriented essentially horizontally and essentially perpendicular to the forward and backward direction of movement of the joystick (20).

Abstract: Shaft, for the transmission of torque, comprising first and second engagement elements. The shaft is divided in its longitudinal direction into a first and second section, wherein the first and second sections are concentrically joined to each other by a friction-welded joint. The first section is case-hardened and comprises the first engagement element, and the second section is tough-hardened and comprises the second engagement element which is induction-hardened and placed on or in a peripheral surface on the second section which lies at an end facing away from the first section.

Abstract: For locking against rotation a piston on a piston rod, the piston having a peripheral groove and at least one radial through-hole to be positioned over a notch, a locking clip with a first straight end part and a curved part has a first end part extending through the radial hole in the piston and a part of the curved part of the locking clip rests in the peripheral groove when in a piston-locking position.

Abstract: A fastening arrangement for vibration-insulating and impact-damping fastening of a first member to a second member includes a first elastic element which is arranged to bear against the first and the second member and a fixing element arranged in a through-hole in the first and second member and in the first elastic element, the first elastic element being arranged in and essentially contained in the through-hole of the second member.

Abstract: A disk brake comprising a disk (1) which carries on each side a secondary friction layer (7) to which a primary friction layer (6) is affixed, wherein the friction layers (6, 7) are actuable by brake shoes (4, 5), wherein when at least one of the primary friction layers (6) is worn away contact between the secondary friction layer (7) and respective brake shoes (4, 5) will give rise to an indicating sound, and wherein cooling grooves (9) are provided in the primary friction layer (6), wherein each cooling groove (9) extends at least through the full thickness of the primary friction layer (6).