A manufacturing process may comprise: stacking a plurality of friction discs together, each friction disc comprising a lug defining a surface; and depositing a composition to bond to the surface of a first friction disc in the plurality of friction discs to form a wear pad defining a wear surface.

A composite exhibiting a thermoelectric effect is provided. The composite comprises a metal sulphosalt, an electrically conductive polymer, and fibres. A method of making a composite material is also provided, comprising mixing the components. The three components work together to provide a low-cost thermoelectric composite that utilises readily available materials. A friction material and a thermoelectric device comprising the composite of the invention are also discussed. Preferably a copper sulphosalt is used, such as tetrahedrite. Preferably man-made vitreous fibres and a binder are used.

A thin-walled piston having a multi-part construction for a brake caliper, the piston having a one-piece design with the form of a pot, which is open on one side, a longitudinal axis, a wall and a piston floor, and which can be applied in the region of the piston floor with an axial contact surface to a brake lining, wherein a tubular insert with a cone is fixed in the interior of the piston, the insert forming a bearing for a bushing.

An additional brake device for a passenger transport device, a brake disc assembly, a wheel disc assembly, and a passenger transport device. The additional brake device comprises: a brake disc defining a hole and having an inner circumferential surface; a wheel disc having a wheel disc body and an extension, the extension being fitted into the hole of the brake disc and having an outer circumferential surface, and a first friction plate being provided between the brake disc and the wheel disc body; and a pressure holding mechanism which maintains a pressure between the brake disc and the wheel disc, wherein an intermediate member is provided between the inner circumferential surface of the brake disc and the outer circumferential surface of the extension of the wheel disc, the intermediate member comprising a metal or alloy material.

Provided is a device for detecting thickness of a brake pad, comprising a support body, a conducting wire or a resistor body, further comprising a conducting wire provided outside the support body, and possibly further comprising a resistor, some or all of the conducting wire, resistor body, and resistor are connected to form a circuit in a certain structure, and the conducting wire or the resistor body on the support body is rubbed together with the brake pad within a certain thickness range of the brake pad. By the present invention, the range of the thickness dimension of the brake pad can be determined, or the thickness dimension of the brake pad can be continuously reflected within a certain range.

The invention relates to a piston for a brake caliper, which can be actuated in combined fashion, of a disk brake, which piston 1 is produced by shaping processes from a metallic material, in particular from a planar metal sheet, and which piston 1 is formed as a pot which is open on one side and which has a longitudinal axis, a wall and a piston crown, and which piston has a twist prevention facility for a drive nut. The invention is based on the problem of providing a robust piston construction which is better capable of tolerating erroneous repair work. To solve the problem, it is proposed that the twist prevention facility has, between the piston and drive nut, at least one reinforcement for protecting against plastic deformation of at least one driver.

A brake piston includes a main body including a first metal material, and a footing including a second metal material that is different from the main body such that an external force generated by a spindle and a brake pad is not transferred to the main body, wherein the main body is coupled to the footing by rotary friction welding.

Disclosed herein is a shim for a brake pad including a plurality of first wires made of a plastic material or a rubber material and a plurality of second wires made of a metal material, and the plurality of first wires and the plurality of second wires may be formed in a single sheet shape.

A one way clutch with improved cage retention is disclosed. The assembly includes a housing with an opening having a first ramped portion defined on an inner periphery of the opening and a groove. A cage defines a plurality of rolling element pockets, and includes a first rim with a second ramped portion that corresponds to the first ramped portion. The first ramped portion of the housing is aligned with the second ramped portion of the cage during insertion of the cage into the opening of the housing for axial alignment of the second ramped portion and the groove. The cage is then rotated with respect to the housing such that the second ramped portion overlaps the first ramped portion to retain the cage in the housing.

An exemplary method for making a metal matrix composite vented brake rotor includes: providing a first side plate; providing a second side plate; and welding the first and second side plates together. The first and second side plates have outer surfaces, inner surfaces, and metal matrix composite portions extending from the outer surfaces to a distance from the inner surface that is less than a thickness measured between the inner surface and outer surface. The inner surface of the first side plate includes a vent portion. The step of welding includes welding the first vent portion to the second inner surface to form the vented brake rotor, the vented brake rotor having a plurality of vents formed by the first and second inner surfaces and the first vent portion.