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 material comprises an Fe part which contains Fe as a main component, a coating layer formed on a surface of the Fe part, and a friction part formed on a surface of at least a part of the coating layer, and the coating layer comprises a first coating layer and a second coating layer which have a specific average thickness and a specific component in order from Fe part side, and in the second coating layer, in order of positions at which the thickness is 20%, 40%, 60% and 80% of the second coating layer from the side of the first coating layer to the side opposite thereto, a Cu content increases and a Ni content decreases.

A friction assembly includes a dry-running disc pack with at least one lining disc and at least one counter disc, which are arranged one behind the other in an alternating manner in an axial direction of the disc pack, and which can be brought into frictional contact with one another, wherein the lining disc has at least one mass-pressed dry-running friction lining.

An object of the present invention is to provide a brake device deterioration prediction system capable of accurately predicting a deterioration time of a brake device. The brake device deterioration prediction system includes an observation unit, a conversion unit, a generation unit, and a prediction unit. The observation unit acquires operation data regarding the operation of the brake device when the brake device operates. The conversion unit converts the operation data into index data indicating deterioration of the brake device for each preset unit of time. The generation unit generates a deterioration model including a trend component showing a trend of long-term change and a periodic component showing a periodic change, as a model showing a change-with-time of deterioration represented by the index data. The prediction unit predicts the deterioration time of the brake device based on the deterioration model.

A brake pad having a backing plate, friction lining, and a surface coating adhered to the friction lining. The surface coating may be formulated to generate a transfer layer on a brake rotor faster than the fiction lining alone. The surface coating may be adhered to the friction lining in a predetermined design.

A brake disk formed of a light weight ceramic and ceramic composite materials, the brake disk having a coating overlying at least a portion of the brake disk. The brake disk includes parallel surfaces wherein at least a portion of the parallel surfaces are coated with a coating material to increase wear and decrease corrosion. The coating over the brake disk includes multiple layers of the coating material, wherein the coating material includes coating material particles configured to construct a pattern of repetition that is consistent with a lattice structure when applied over the parallel surfaces of the brake disk.

A method of assembling a brake pad includes impaling a first layer of a preformed multi-layer friction pad on piercing members of a rotor facing surface of a brake pad backing plate. A shim is concurrently assembled to a caliper facing surface of the backing plate.

The invention relates to a brake pad for a vehicle brake, comprising a back plate, an underlayer, and a friction material, stacked in this order, in a z-direction, wherein the brake pad is configured to be moved in the z-direction to be pressed against a rotating body for braking. The underlayer has an anisotropic material property, at least one material parameter having a value in the z-direction that is different from its value in a direction orthogonal to the z-direction.

A brake pad having a surface coating operable to enhance the bedding-in process during normal operation. The surface coating may be formulated using one or more materials found in a friction lining of the brake pad. The surface coating may be formulated using only non-metal materials.

A brake pad having a backing plate, friction lining, and a surface coating adhered to the friction lining. The surface coating may be formulated to generate a transfer layer on a brake rotor faster than the fiction lining alone. The surface coating may be adhered to the friction lining in a predetermined design.