A gearbox comprising a main unit comprising a first casing and a first hollow shaft, and a secondary unit comprising a second casing and a second hollow shaft, and a drive shaft comprising a first clutch portion and a second clutch portion, which engage the first and second hollow shafts in an angularly fixed and axially sliding manner. The gearbox further including an axial retaining device comprising an axial shoulder supported in a fixed potion by an axial end on one of the first or second hollow shafts, and an external radial projection arranged in an intermediate position, and an external radial projection arranged in an intermediate position along the drive shaft between the first and second clutch portions.

A torque transfer assembly comprising a drive shaft and a driven shaft and a dielectric insert arranged to be positioned between the drive shaft and the driven shaft, the insert assembly comprising a body of dielectric material shaped to form an insulating layer and configured to engage, respectively, with a first shaped engagement feature on the drive shaft and a second shaped engagement feature on the driven shaft, in torque transfer engagement, the insulating layer providing a dielectric barrier between the drive shaft and the driven shaft.

A working machine assembly has a rotatable shaft and a power transmission device having a central hub with a bore there through configured to receive the rotatable shaft. The shaft and power transmission device are connected with a securing mechanism that includes a key inserted in a keyway formed in an inner surface of the central hub and a key seat formed along a portion of the shaft wherein the key prevents relative movement between the rotatable shaft and the attached power transmission device. The securing mechanism has a pin having a flat tapered surface. The pin is received in a cross hole in the hub and interacts with the key such that the tapered surface abuts the key. The pin has a threaded end. A nut is received on the threaded end and used to draw the tapered surface of the pin against the key in a wedging action.

A disc assembly for an agricultural implement includes a mounting assembly having a housing and a rotatable shaft disposed within the housing. The rotatable shaft includes a recess extending along a portion of an axial extent of the rotatable shaft. The recess is formed by an inner surface of the rotatable shaft. The rotatable shaft also includes a first engagement feature formed on the inner surface and a key disposed about the recess. The key is configured to engage an opening of a disc blade to block rotation of the disc blade relative to the rotatable shaft. Furthermore, the disc assembly includes a fastener having a shaft configured to extend through the opening of the disc blade and to engage the recess of the rotatable shaft. The shaft has a second engagement feature configured to engage the first engagement feature to couple the disc blade to the rotatable shaft.

A rotor assembly for a hybrid module includes a rotor carrier, a rotor segment, an end ring, a first spacer, a second spacer, and a compressed spring. The rotor carrier includes a first outer cylindrical surface and a radial surface, and the rotor segment is installed on the first outer cylindrical surface. The end ring is fixed to the rotor carrier and arranged for fixing to an engine flexplate. The first spacer is disposed axially between the rotor segment and the radial surface, and the second spacer is disposed axially between the rotor segment and the end ring. The compressed spring is disposed axially between the end ring and the second spacer to press the first spacer, the second spacer, and the rotor segment against the radial surface for frictional torque transmission between the rotor segment and the rotor carrier.

A force-transmitting assembly includes a metal shaft having at least two longitudinally-extending grooves defined in an outer surface, and a metal hub having at least two longitudinally-extending grooves defined in an inner surface that surrounds the outer surface of the shaft. A plurality of discrete parts is disposed in the at least two longitudinally-extending grooves of the shaft and the hub in an interference-fit manner so as to transmit a torque from the shaft to the hub. Each of the discrete parts is composed of at least 50 mass % of technical ceramic selected from Si.sub.3N.sub.4, SiAlON, Al.sub.2O.sub.3, ZrO.sub.2, or a mixture of two or more of Si.sub.3N.sub.4, SiAlON, Al.sub.2O.sub.3, and ZrO.sub.2.

A remanufactured pinion shaft includes a salvage member secured to a replacement member. The salvage member may be formed from a damaged pinion shaft and includes first gear teeth proximate a first axial end and a first alignment member proximate a second axial end. The replacement member includes second gear teeth proximate a first axial end and a second alignment member proximate a second axial end. The first alignment member and the second alignment member cooperate to transmit rotational motion between the first salvage member and the replacement member and/or align the salvage member relative to the replacement member.

A pinion shaft assembly for operation in a power end of a reciprocating pump includes a tubular member coupled to first pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the first end of the tubular member to ensure correct rotational orientation of the first pinion gear member and the tubular member and to help prevent rotation of the first pinion gear member relative to the tubular member. The tubular member is also coupled to a second pinion gear member via an interference coupling extension, possibly having a protruding alignment key operable to engage a slot formed on an inner wall of the second end of the tubular member to ensure correct rotational orientation of the second pinion gear member and the tubular member and to help prevent rotation of the second pinion gear member relative to the tubular member.

A disc for a separating conveyor screen has a disc body with an opening in an axial direction for receiving a shaft. At least one anchoring member of the disc has an anchoring portion projecting into the opening in a radially inward direction and has a positioning portion fitted in a disc body of the disc. The anchoring portion has at least one projection in circumferential sense of the opening for anchoring in at least one recess in an outside surface of the shaft. At least one tensioner is provided for tensioning the anchoring member and the disc body radially towards each other. A separating conveyor screen equipped with such discs is also described.

A joint arrangement including a drive member rotatable about a rotation axis, the drive member including a drive member press fit surface and a drive member shape lock structure; an attachment portion having an attachment thread; and a driven member including a driven member press fit surface, a driven member shape lock structure and a through hole; wherein the joint arrangement is configured such that the driven member can be rigidly connected to the drive member by means of a press fit between the drive member press fit surface and the driven member press fit surface by threadingly engaging the attachment thread with an attachment member passing through the through hole; and wherein the joint arrangement is configured such that a shape lock is provided between the drive member shape lock structure and the driven member shape lock structure when the driven member is connected to the drive member.