A torsional vibration damper for a drive train includes an axis of rotation, a multi-flange damper for damping torsional vibrations, a torque limiter unit for limiting a maximum transmissible torque, an outer hub connecting the multi-flange damper to the torque limiter unit for torque transmission, and an inner hub for connection to a transmission input shaft. The multi-flange damper has a plurality of flanges. The torque limiter unit is arranged radially inside the multi-flange damper and includes an inner plate and an outer plate. The outer hub is arranged radially between the multi-flange damper and the torque limiter unit and the inner hub is arranged radially inside the torque limiter unit. The outer hub includes an external toothing engaged with each of the plurality of flanges and an internal toothing engaged with the outer plate.

An assembly having an outer component, an inner component, and a ring positioned between the outer component and the inner component, where the ring has at least one radially extending projection adapted to seat within at least one groove in the inner component or outer component, and where the projection is adapted to compress radially to allow rotational or axial movement between the inner component and the outer component upon application of rotational or axial force respectively to at least one of the inner component or the outer component.

An isolating decoupler comprising a shaft, a pulley journalled to the shaft on at least one bearing, a one-way clutch engaged with the shaft, a torsion spring engaged between the one-way clutch and the pulley, the shaft comprises an inner race of the at least one bearing, and the torsion spring having an end welded to the one-way clutch and having another end welded to the pulley.

Particular embodiments disclosed herein provide a joint of a tray arm assembly, comprising a joint body, a shaft configured to rotate relative to the joint body about a longitudinal axis of the shaft, and a slip clutch assembly, comprising a clutch stack, including a plurality of first clutch plates keyed to the shaft and a plurality of second clutch plates keyed to the joint body. The clutch stack further comprises a spring configured to selectively exert a force on the clutch stack, wherein the force compresses the clutch stack causing a friction between the plurality of first clutch plates and the plurality of second clutch plates with respect to a rotation of the shaft relative to the joint body.

Provided is a novel bidirectional torque limiter, which allows setting a slip torque for a case of inputting rotation from a driving part to be smaller than a slip torque for a case of inputting rotation from a driven part. The force of an external coil spring 42 to clamp an outer race 8 is set smaller than the force of an internal coil spring 48 to clamp an inner race 10, so that the external coil spring 42 increases its diameter to slip with respect to the outer race 8 when a rotation torque is applied from the driving part, while the internal coil spring 48 increases its diameter to slip with respect to the inner race 10 when a rotation torque is applied from the driven part.

A compensating coupling comprises two outer coupling parts, namely an input-side coupling part and an output-side coupling part, both of which are to be connected to rotatable elements, more particularly shafts, and a center coupling part, which can be moved to a limited extent relative to the outer coupling parts. The center coupling part is composed of: a tube piece in the form of a damping element; and two tube end pieces, which are fastened to the tube piece and which are each designed to be fitted onto one of the outer coupling parts in a centered manner by ball head centering.

The invention relates to a torque transmission device (1) for the drive train of a motor vehicle, comprising an input element (2) and a cover element (16) which is connected to the input element (2) for conjoint rotation, and comprising an output element (3), wherein: the output element (3) and the input element (2) are rotatable in relation to one another via an energy accumulator device (4) and about a common axis of rotation A; a torque-limiting device (10) is located between the input element (2) and the output element (3); the torque-limiting device (10) is designed to transmit a torque between the input element (2) and the output element (3) up to a limit torque value and, when the limit torque value is exceeded, to transmit a torque at least in part or to transmit no torque at all; the torque-limiting device (10) is connected to the energy accumulator device (4) via a frictional and/or form-fitting connection (8), is connected to the input element (2) via a first frictional connection (9), and is connected to the cover element (16) via a second frictional connection (14); the torque-limiting device (10) comprises a preload element (5) for providing the frictional connections (9; 14); the preload element (5) is preloaded between the input element (2) and the cover element (16); a radially inner region of the preload element (5) is provided with at least two contact elements (17a, 17b, 17c, 17d, 17e, 17f); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are provided on a radius (r) and protrude axially out of the preload element (5) in the direction of the input element (2); the contact elements (17a, 17b, 17c, 17d, 17e, 17f) are at an angular distance (α) from one another; and the contact elements (17a, 17b, 17c, 17d, 17e, 17f) form the first frictional connection with the input element (2).

A small and compact rotation transmitter includes a torque limiter and an angular position holding apparatus. An outer race member is installed in a housing, and a coil spring is mounted on the outer peripheral surface thereof. Inside the outer race member, an internal space is formed, and an inner race member is installed concentrically with the outer race member. In the annular space between the outer and inner race members, a thin-plate elastic piece is pressed against the outer and inner race members, and either the outer or inner race member is connected to an input-side device while the other is connected to an output-side device. Even without rotation torque, the position of the output-side device is held by the coil spring. When the rotation torque from the input-side device becomes excessive, slippage occurs on the thin-plate elastic piece, whereby the outer and inner race members are disconnected.

A torque limiter includes: a first rotary member configured to be rotated by a drive source; at least one first friction member engaged with the first rotary member; at least one second friction member arranged so as to overlap the first friction member, and configured to rotate with rotation of the first rotary member by using frictional force generated between the second friction member and the first friction member; and a second rotary member engaged with the second friction member. It is preferable that the first rotary member and the second rotary member be pivotally supported by an identical rotary shaft, and that, while either the first rotary member and the second rotary member is fixed to the rotary shaft, the other one be supported so as to be rotatable about the rotary shaft.

A strain wave gearbox configured to provide over-torque protection. The strain wave gearbox is designed to include a clutch that is at least partially housed within or positioned inside the internal space (herein labeled a chamber or void space interchangeably with internal space) of a flex spline. In some cases, the internal space is utilized to generate the preload for the clutch, and it may be used to provide room for a clutch preload subassembly. The clutch is located outside the flex spline's internal space and is formed to use geometric friction surfaces in the form of mating rings of teeth on mating surfaces or sides of the first and second clutch plates that once preloaded by the clutch preload subassembly require a greater torque than the design torque to rotate to the next tooth.