A tolerance ring is an intermediate element for a shaft/hub connection that is positioned in a groove between shaft and hub and that produces a force-fitting connection between these two elements. It has substantially the shape of a hollow cylinder, wherein the lateral surface thereof has embossments in the form of radially inwardly and/or outwardly pointing elevations. Here, provision is made at one longitudinal end of a flange-like collar, which is applied in a radial plane with respect to the central longitudinal axis. The tolerance ring is preferably manufactured in one piece with the flange-like collar from metal as a deep-drawn part, preferably being manufactured from aluminum or an aluminum alloy. An assembly method for such a tolerance ring, and a ball screw drive, and a screw drive, having such a tolerance ring are also provided.

A damper device includes a first rotor, a second rotor, a plurality of elastic members and a stopper mechanism. The stopper mechanism includes a plurality of first cutouts, a plurality of second cutouts and a plurality of stop members. A pair of the first and second cutouts is provided on both circumferential sides of each of a plurality of accommodation portions of the second rotor so as to circumferentially extend therefrom. The stop members are fixed to the first rotor. Each stop member is circumferentially movable within the pair of the first and second cutouts. The second rotor includes a first protruding portion circumferentially protruding on one of a pair of pressing surfaces of each accommodation portion. Each of the first cutouts, which is a hole, extends at an end thereof located closer to each accommodation portion toward the first protruding portion.

A torque transmitting device for an automotive transmission includes a clutch housing with a plurality of internal splines, a clutch hub with a plurality of external splines extending radially outwardly from the clutch hub, a plurality of friction plates with internal teeth and a first and a second surface. The first and second surface having a friction material disposed thereon and at least one of the internal teeth has an aperture and the plurality of internal teeth intermesh with the plurality of external splines on the outer surface of the clutch hub, a plurality of reaction plates having a plurality of external teeth and a first and a second surface. The plurality of external teeth intermesh with the plurality of internal splines in the clutch housing, and a spacer member disposed in the aperture separates a first of the friction plates from a second of the friction plates.

A torsion damper with at least one torque input disk and at least one torque output disk, wherein the torque input disk can move in circumferential direction relative to the torque output disk against the force of at least one spring storage, wherein the relative movement is damped by a friction device which generates a smaller friction torque in a first swivel angle range than in a second swivel angle range in that the friction device has at least two friction ring pairs which are rotatable opposite one another and which are activated depending on the swivel angle via a driving connection of at least one friction ring with the torque input disk. The driving connection has a spring element which is arranged functionally in series with the friction device and functionally in parallel with the spring storage.

A driving force distributing apparatus is configured to distribute a driving force from an engine to right and left wheels in a manner that the driving force is differentially transmittable to the wheels and the transmission of the driving force is interruptible. The apparatus includes: a differential case; a differential gear mechanism including a pair of side gears and a plurality of pinion gears; an intermediate shaft coupled to one of the side gears such that the intermediate shaft is not rotatable relative to this side gear; and a clutch mechanism to transmit a driving force from the intermediate shaft to one of the wheels in a manner that the transmission of the driving force is interruptible. The clutch mechanism includes: coaxial relatively rotatable first and second rotational members; and a plurality of clutch plates disposed between the rotational members. The first rotational member is spline-fitted to the intermediate shaft.

A vehicle transmission includes a transmission shaft, a friction element assembly mounted on the transmission shaft, a piston assembly for actuating the friction element assembly, a snap ring for retaining the friction element assembly and a mounting groove formed in the transmission shaft. The snap ring is installed into the mounting groove by expanding the snap ring and then allowing the snap to contract and enter the mounting groove. The mounting groove is located such that the snap ring could exit the mounting groove upon expansion of the snap ring due to a centrifugal force. Accordingly, various arrangements are provided to prevent the snap ring from leaving the mounting groove after installation.

A clutch disk for a vehicle may include a hub plate mounted on a shaft to restrict a rotation of the shaft, a sub plate rotatably mounted on the shaft, a presser mounted on the hub plate to restrict a position of the presser and protruding from the hub plate toward the sub plate, and a wave spring positioned between the hub plate and the sub plate, mounted to allow at least a part of the wave spring to adhere to the sub plate, and formed with a flexion to change a spaced distance from the hub plate depending on a rotation direction of the hub plate to thereby change a point and a level pressed by the presser depending on a relative rotation between the hub plate and the sub plate.

A clutch that includes a friction plate; a separator plate; a clutch hub; and a piston that presses the friction plate and the separator plate, wherein the clutch hub includes a hub on which an inner peripheral portion of the friction plate or the separator plate is fitted, a tubular shaft that movably supports the piston, and an engagement oil chamber defining wall that together with the piston defines an engagement oil chamber to which an engagement oil pressure is supplied, the hub is spline-fitted on a gear of a planetary gear so as to rotate with the gear, and the tubular shaft is rotatably supported by a central shaft and is fitted by a spigot joint in the gear.

A clutch for a lift fan with input and output shafts on a common rotational axis, connected by disc shaped output clutch plates oriented normal to the axis. A keyway extends radially inward from a mouth at an outer diameter of each output clutch plate to a seat at an inner diameter of the respective clutch plate. At least one output shaft lug key may be positioned in the keyway and extends axially from one output clutch plate to the other output clutch plate, which couples the rotation of the output clutch plates to the rotation the output shaft and allows axial movement of the two output clutch plates relative the output shaft lug key, the output shaft has an outer radial surface and an inner radial surface. At least one input clutch plate positioned axially between the two output clutch plates and rotationally fixed to the input shaft.

A clutch disc segment, including: an inner circumference; a body portion including an outer circumference and a plurality of holes arranged to receive a plurality of rivets for securing friction material to the body portion, and a segment including at least a first portion of the inner circumference and conforming to a plane; a first foot protrusion including a first hole for receiving a first rivet for securing the clutch disc segment to a retainer plate; and a second foot protrusion including a second hole for receiving a second rivet for securing the clutch disc segment to the retainer plate. One of the first or second foot protrusions is off-set from the plane in a first direction orthogonal to the plane.