A brake rotor, includes at least one friction element and one adapter element, wherein the brake rotor is configured to rotate about an axis of rotation, wherein the friction element has at least one friction surface and one connection region, wherein the adapter element has an installation region and a transfer region, wherein the installation region is configured for fixing the brake rotor to a hub, wherein the connection region indirectly or directly engages in positively locking fashion in a circumferential direction with the transfer region such that a torque about the axis of rotation can be transferred between the connection region and the transfer region from the friction element to the adapter element.

The disclosure provides a friction disk and a brake including a magnetic yoke iron core, a first movable plate, a friction disk, a first coil, at least one second coil, an armature and an elastic part; the magnetic yoke iron core includes a first mounting space, a second mounting space and at least one third mounting space distributed coaxially; the first movable plate is located in the first mounting space and close to a first shaft end; the friction disk is located in the first mounting space; the first coil is arranged in the second mounting space; the at least one second coil correspondingly is arranged in the at least one third mounting space; the armature is located at the second shaft end; the elastic part has a pre-tightening force that enables the armature to be far away from the magnetic yoke iron core.

The disclosure provides a magnetic yoke iron core and a brake including a magnetic yoke iron core, a first movable plate, a plurality of friction disks, at least one second movable plate, a coil, an armature and an elastic part; the first movable plate is located in a first mounting space and close to a first shaft end; a plurality of friction disks are sequentially arranged in the first mounting space along an axial direction of the magnetic yoke iron core and located at a side of the first movable plate close to a second shaft end; the coil is arranged in a second mounting space; the armature is connected with the first movable plate through a connector; the second movable plate is connected with the connector; and the elastic part having a pre-tightening force which enables the armature to be far away from the magnetic yoke iron core.

The disclosure provides a brake including a magnetic yoke iron core, a movable plate, a friction disk, a coil, an armature and an elastic part; a first mounting space penetrates through a center position of the magnetic yoke iron core in the axial direction; an opening of a second mounting space faces a second shaft end; the movable plate is located in the first mounting space and close to a first shaft end; the friction disk is arranged in the first mounting space and located at a side of the movable plate close to the second shaft end; the coil is arranged in the second mounting groove; the armature is located at the second shaft end, and the armature is connected with the movable plate through a connector; and the elastic part has pre-tightening force that enables the armature to be far away from the magnetic yoke iron core.

An electromechanical brake comprising mobile induced elements or sectors or frames (2), the number of mobile induced elements (2) or sectors being at least three, where one of the sectors acts faster than the rest, and where one of the sectors acts in a delayed manner with respect to the rest of the sectors in the case of an emergency, said time-delayed actuation being achieved by means of the antiparallel arrangement of a diode (6) on the coil (5) associated with said sector. Smooth and progressive stop is thus achieved in the case of an emergency.

A disc/brake friction torque for railway vehicles consisting of at least one pad comprising at least one friction element and a disc. The friction element is made of a sintered material comprising copper, iron, graphite, 0.02 to 1.5% by weight of molybdenum, 1 to 3% by weight of chrome and a porosity ranging from 20 to 35%; and the disc is made of cast iron comprising 0.05 to 2% by weight of chrome, 0.05 to 2% by weight of molybdenum, 0.1 to 2% by weight of nickel.

A bicycle disc brake rotor is provided. The bicycle disc brake rotor includes a friction disc having a center axis and including a first braking surface and a second braking surface. The bicycle disc brake rotor also includes a mounting adapter attached to a bicycle wheel and coupled to the friction disc through a coupling structure, wherein the coupling structure includes a first mating surface pair comprising a first adapter surface and a first disc surface, and a second mating surface pair comprising a second adapter surface and a second disc surface.

A braking and/or clamping device for a shaft guided in relation to a basic body, includes an actuating assembly (10) and a shaft-coupling assembly (80). The actuating assembly comprises a split housing (11) which has two bending plates (15, 16) which can bulge elastically in certain regions. The bending plates each have gripper jaws (23, 24) with frictional surfaces (31, 32). A sealed pressure chamber (37), which can be filled with a pressure medium, is situated between the bending plates. Parts of a shaft-coupling assembly project between the clamping zones, said parts establishing the linking to the braked or clamped shaft. When the pressure in the pressure chamber is relieved, the frictional surfaces of the actuating assembly can be applied to the frictional surfaces of the shaft-coupling assembly, thereby providing the braking and/or clamping force.

The present disclosure describes brake rotor preforms and brake pads configured to reduce fracturing and failure of brake rotors by distributing the axial force applied during braking across butt joints between abutting segments of preforms and rotors manufactured therefrom. The preforms comprise a spiral annular structure formed about a longitudinal axis from a plurality of carbon fiber precursor tow segments having a partial annular shape. Each segment is asymmetrical when viewed in the longitudinal axis direction and configured so planes defined by the segment's ends are never coplanar with planes extending radially from the longitudinal axis. The brake pads have a partial annular shape and ends adapted to prevent planes defined by the ends from being coplanar during use with a plane extending radially from a brake rotor longitudinal axis.

A friction disk includes a friction disk core having a first surface with multiple channels extending radially across the first surface. The friction disk may further include a first wear liner having two wear liner segments each configured to be coupled to the first surface of the friction disk core to form an annular liner and each including a wear surface, a non-wear surface, and a rib extending from the non-wear surface and configured to be received by one of the multiple channels.