A composite brake disc connecting assembly and a composite brake disc. The composite brake disc connecting assembly includes a sleeve (1) and a spring member (2); wherein the sleeve (1) includes an upper pressing plate (101), a lower pressing plate (102) and a connecting column (103); a connecting hole (104) is provided at the center of the connecting column (103), and a pair of U-shaped clamping slots are formed between the upper pressing plate (101), the lower pressing plate (102) and the connecting column (103); and the spring member (2) includes a pair of elastic pieces and a connecting bridge (201). The composite brake disc includes a brake disc hat (4), a friction ring (5) and a plurality of composite brake disc connecting assemblies; wherein the brake disc hat (4) is provided with disc hat notches (401) for mounting spring members (2), the friction ring (5) is provided with mounting holes (505) for accommodating connecting columns (103), and the friction ring (5) is connected to the brake disc hat (4) by fasteners (3) inserted onto the connecting columns (103). The composite brake disc has a simple structure, the friction ring (5) can move radially, reducing the deformation amount of the friction ring and preventing brake judder; the whole assembly process is simple, the number of parts is small, the production cost is reduced, and the sources causing variation during the process are reduced.

A pad for disc brakes for railway vehicles comprising a base plate (2), a plurality of friction elements fixed to the base plate and a plurality of spacers, each of which is mounted between the base plate and a respective friction element. In each one of the spacers at least one fixing hole is obtained, which is engaged by a respective rivet suited to lock the friction element to the base plate. Each one of the spacers consists of a plurality of metal plaques, each having a fixing hole obtained in it. The metal plaques are stacked on top of one another so that the respective fixing holes coincide.

The disclosure concerns a Drum brake assembly (10) for a motor vehicle,

the drum brake assembly (10) having: a brake drum housing (16); at least one brake shoe (26); a brake lining (18);
wherein the brake lining (18) is arranged at an inner circumferential face (24) of the brake drum housing (16) and the brake shoe (26) is displaceable relative to the brake lining (18), so as to contact the brake lining (18) during braking. Also disclosed is a drake drum assembly (14) for a motor vehicle Method a for producing such a brake drum assembly (14).

The disclosure concerns a Drum brake assembly (10) for a motor vehicle,

the drum brake assembly (10) having: a brake drum housing (16); at least one brake shoe (26); a brake lining (18);
wherein the brake lining (18) is arranged at an inner circumferential face (24) of the brake drum housing (16) and the brake shoe (26) is displaceable relative to the brake lining (18), so as to contact the brake lining (18) during braking. Also disclosed is a drake drum assembly (14) for a motor vehicle Method a for producing such a brake drum assembly (14).

In a method for coating a brake lining carrier plate with an adhesive composition that is to be dried, the lining carrier plate is inductively heated to the desired drying temperature before the adhesive is applied.

In a method for coating a brake lining carrier plate with an adhesive composition that is to be dried, the lining carrier plate is inductively heated to the desired drying temperature before the adhesive is applied.

There is provided a method for producing a wet friction plate that can improve the retention property of lubricating oils in a fine groove formed by laser light. In a method for producing a wet friction plate (200), a friction material (210) is produced by sheet making processing in a first step. Thereafter, in a second step, a fine groove (211) is formed on the friction material (210). The friction material (210) is produced such that thermosetting resin therein is in a semi-cured state. The cross-sectional shape of the fine groove (211) is formed into a V shape by laser light. Subsequently, in a third step, the friction material (210) is disposed on a core metal (201) via an adhesive agent including thermosetting resin. Subsequently, in a fourth step, the friction material (210) is pressed while heated to crush the fine groove (211). In this manner, unevenness is formed on an intra-groove surface (212), and the thermosetting resin is completely cured.

There is provided a method for producing a wet friction plate that can improve the retention property of lubricating oils in a fine groove formed by laser light. In a method for producing a wet friction plate (200), a friction material (210) is produced by sheet making processing in a first step. Thereafter, in a second step, a fine groove (211) is formed on the friction material (210). The friction material (210) is produced such that thermosetting resin therein is in a semi-cured state. The cross-sectional shape of the fine groove (211) is formed into a V shape by laser light. Subsequently, in a third step, the friction material (210) is disposed on a core metal (201) via an adhesive agent including thermosetting resin. Subsequently, in a fourth step, the friction material (210) is pressed while heated to crush the fine groove (211). In this manner, unevenness is formed on an intra-groove surface (212), and the thermosetting resin is completely cured.

A brake disc for a friction brake of a transportation vehicle includes a friction portion having at least one friction surface and a fastening portion for fastening to the transportation vehicle, wherein the friction portion and the fastening portion are formed on a base body of gray cast iron or steel, and an anti-wear layer is applied to the friction portion as the friction surface by laser deposition welding. The anti-wear layer on the base body is continued beyond the friction surface into a region that is angled relative to the friction surface, and ends in that region, and is applied in the angled region of the base body with full coverage and without any gaps to the base body. Surface portions outside of the friction surface are provided with an anti-corrosion layer which overlaps the anti-wear layer in the angled region.

A clutch plate includes first and second axially offset annular surfaces, a first angled surface extending at an acute angle from the first annular surface in a first axial direction, and a second angled surface extending at an acute angle from the first annular surface in a second axial direction, opposite the first axial direction. In some example embodiments, the clutch plate has a wet friction material fixed to the first and second annular surfaces and at least one of the first and second angled surfaces. In an example aspect, the clutch plate has a low friction wet friction material fixed to the wet friction material of the at least one of the first and second angled surfaces. The low friction wet friction material may be fixed to the wet friction material by infusion or bonding. In an example embodiment, the clutch plate has a first wet friction material fixed to the first and second annular surfaces, and a second, low friction wet friction material fixed to at least one of the first and second angled surfaces.