There is provided a brake lining for a railway vehicle that can reduce brake squeal in braking. A brake lining for a railway vehicle is used for a disc brake system of a railway vehicle. This brake lining includes a base plate, a sintered friction material, and a friction material supporting mechanism. The friction material supporting mechanism is disposed between the base plate and the sintered friction material and supports the sintered friction material in such a manner that the sintered friction material can move with respect to the base plate. The sintered friction material has a Young's modulus of 35.0 GPa or more.

To provide a friction couple having an enhanced effect and stability in a low speed range, where the friction couple has a disc brake pad having a friction material manufactured from a friction material composition having a binder, a fiber base, and a friction modifier, without containing a copper component and a ferrous metallic fiber, and a stainless steel disc rotor. The present invention uses a friction material composition containing 20 - 30 weight % of a titanate relative to an entire friction material composition as an inorganic friction modifier without containing an inorganic friction modifier that has a Mohs hardness of 4 or less and is cleavable. The above-explained titanate is preferably a layer crystal structure lithium potassium titanate.

A compensating coupling connects a first shaft to a second shaft along an axis of rotation. The compensating coupling has a first coupling body connected to an end of the first shaft and a second coupling body connected to an end of the second shaft. At least one elastic coupling element has a longitudinal axis lying in a plane that is oriented perpendicularly to the axis of rotation. The two coupling bodies are arranged with respect to one another to form a three-dimensional coupling region in which the elastic coupling element is arranged. The elastic coupling element is connected to the two coupling bodies such that the two coupling bodies are displaceable in the radial direction with respect to the axis of rotation. The elastic coupling element is displaceable in the axial direction with respect to the axis of rotation.

Provided is a phenol resin composition for a friction material, including a component (A) of a silicone resin having a softening point of 140° C. or lower and a component (B) of a phenol resin.

A flexible coupling for transmitting torque between parts of a transmission shaft system comprises a tubular section of continuous-fibre-reinforced composite material which has been modified to form a living hinge section with reduced bending stiffness to allow flexion of the tubular section. The tubular section may be modified through the provision of a pattern of formations within the living hinge section. The formations may be in the form of apertures and/or recesses in the continuous-fibre-reinforced composite material to create a plurality of living hinges in the material between, in particular slots and/or grooves.

A wet friction material includes a base including a matrix of fibers and filler particles embedded in the matrix of fibers; a binder embedded in an interior of the base; and a quaternary ammonium salt containing coating on an outer surface of the base. The quaternary ammonium salt containing coating can include a quaternary ammonium salt and a solution binder.

A brake element for a transportation vehicle, having a base body that is planar at least in some regions, to the planar sides of which at least two build-up layers are applied in each case at least in some regions. The build-up layers form a surface which, in the mounted state of the brake element on the transportation vehicle, serves as a friction surface for a brake pad. There is a bonding zone in which both a material of the base body and a material of a build-up layer adjacent to the base body are present, wherein the bonding zone has a thickness perpendicular to an areal extent of a planar side that is less than 10 μm.

A coupling assembly for transmitting rotational forces from a driving shaft to a driven shaft, the driving and driven shafts having teeth. The coupling assembly includes a first and a second flange, each flange configured to be rotationally fixed onto respective shafts. A pair of resilient shoes are disposed between the flanges. The shoes are configured to be attached to the coupling assembly by a first plurality of fasteners that are fixed to the first flange and extend through the shoes to connect the shoes to the first flange and a second plurality of fasteners are fixed to the second flange and extend through the shoes to connect the shoes to the second flange.

To provide a friction pair capable of inhibiting to form a lump of a metal on a friction surface of a disc rotor, where the friction pair is consisting of a disc brake pad having a friction material manufactured from a friction material composition containing a binder, a fiber base material, and a friction modifier, but not containing a copper component and a ferrous-based metal fiber, and a stainless steel disc rotor. To use a friction material composition containing 1-6 weight % of a trimanganese tetraoxide as a friction modifier relative to an entire amount of the friction material composition but not containing any metal fiber.

A clutch assembly for a motor vehicle drivetrain includes a rigid support and a wet friction material fixed to a surface of the rigid support. The wet friction material includes a base material including a matrix of fibers and filler particles embedded in the matrix of fibers. The filler particles include calcined kaolin clay, and the base material includes, by percent weight, 5 to 60% of calcined kaolin clay. The wet friction material also includes a binder embedded in the base material. The binder is tung modified phenolic resin.