In a method for producing a brake disc, a friction surface layer is sprayed onto the base body or onto an intermediate layer applied on the base body by cold gas spraying a particle mixture which consists 25 to 75% by weight of a metal matrix material and 75 to 25% by weight of a carbide material. The metal matrix material consists of an iron-based alloy, nickel-based alloy, titanium or titanium alloy. The carbide material consists of tungsten carbide, titanium carbide, iron carbide, silicon carbide, chromium carbide or niobium carbide.

A friction pad including a friction pad body including an annular base defining an aperture down a central axis, and first and second opposing major surfaces, where the friction pad body includes a low friction material, and where at least one of the major surfaces includes a plurality of grooves adapted to retain lubricant.

A friction device has a carrier element and friction lining segments arranged thereon. The friction lining segments each include a sintered friction lining, which is arranged on a friction lining carrier, the friction lining carrier is connected to the carrier element, and preferably the carrier element includes multiple fastening lugs and/or lining spring elements for the friction lining segments. In the design of the carrier element with the fastening lugs and/or lining spring elements, the friction lining segments each connect two fastening lugs or two lining spring elements to one another and/or the friction lining segments have an angle coverage between 25° and 55°.

Electrically driven vehicle including a drivetrain with an electric motor which forms the drive of the vehicle, and a frictionally engaging clutch. The clutch is a normally closed clutch with conical friction elements, which rest against each other in pairs in a closed position and transmit torque.

A friction plate (1.sub.1) includes a plate (1A) with a disc shape and a friction material (F1, F2) that is fixed to aside face (1a) of the plate (1A). The friction material (F1, F2) is disposed so that one or both of an inner peripheral side and an outer peripheral side is nonuniform in an inner and outer peripheral direction with respect to a circumferential direction around a center (CT1) of the plate (1A). Thus, there is an increase in the amount of lubrication oil that is fed to a surface of friction material segments (F1, F2) and there is an increase in a separation force in an axial direction between a friction plate (1.sub.1) and a separator plate or an end plate.

A friction disk may comprise a friction disk core and a wear liner coupled to the friction disk core. A depression may be formed in a surface of the friction disk core. The wear liner may comprise a protrusion extending from a non-wear surface of the wear liner. The protrusion may be positioned within the depression of the friction disk core.

A friction disk includes a friction disk core having an inner diameter edge, an outer diameter edge, and a first surface with multiple mortises extending radially across the first surface. The friction disk further includes a first wear liner having two wear liner segments each including a wear surface and a non-wear surface having a tenon with a complimentary shape to each of the multiple mortises, the tenon of each wear liner segment being configured to be received by a corresponding mortise of the multiple mortises to couple the wear liner segments to the friction disk core to form an annular liner.

A clutch system includes a first clutch member and a second clutch member for transmitting torque from a vehicle power generator. The first clutch member includes a first a first clutch element having a first surface and a first friction material disposed on said first surface. The second clutch member is configured to engage the first clutch plate and includes a second clutch element having a second surface and a second friction material disposed on the second surface. The first friction material is configured to be engaged with the second friction material during operation of the vehicle power generator.

A friction disk of a braking system may include a friction disk core and a first wear liner. The friction disk core has an outer surface that defines a recess extending gradually inward from the outer surface, according to various embodiments. The wear liner mates to the outer surface of the friction disk core and includes a wear surface and a first non-wear surface, according to various embodiments. The first wear liner further includes a notch extending gradually outward from the first non-wear surface of the wear liner, according to various embodiments. In an installed state, the notch is received within the recess, according to various embodiments.

Example bicycle disc brake rotors are described herein. An example disc brake rotor described herein includes a core having a brake surface core portion and a single-piece brake track coupled to the brake surface core portion. The brake track is constructed of stainless steel. The brake track includes a first track on a first side of the brake surface core portion, a second track on a second side of the brake surface core portion, and a connecting portion extending over a peripheral edge of the brake surface core portion between the first and second tracks.