A friction material comprising: (a) at least one lubricant, wherein the at least one lubricant includes an amount of graphite, and wherein at least about 30 percent by weight of the graphite has a particle size of greater than about 500 microns using a sieve analysis; (b) at least one metal containing constituent for imparting reinforcement, thermal conductivity, and/or friction when the friction material is brought into contact with a movable member, wherein the at least one metal containing constituent includes iron and an iron containing compound; (c) a micro-particulated material; (d) one or more filler materials; (e) optionally at least one processing aid; (f) a balance being an organic binder, wherein the organic binder has less than 1 percent by weight of free phenol; wherein the friction material is free of asbestos and substantially devoid of copper.

A vehicular brake rotor component made from a Ti base powder alloy which has been 3D printed to a desired shape before one or both of its wear surfaces are coated with a 0.005 to 0.01 inch thick mixture containing about 1-40% chromium carbine. Then the combined product is sintered, machined and double disc ground. Related methods of manufacture of this brake rotor component are also disclosed.

In some implementations of the current subject matter, a brake rotor can include a supporting layer applied to a friction surface of a brake rotor substrate, which can optionally include cast iron, and a coating applied over the supporting layer. The supporting layer can include a preparatory metal, and the coating can impart wear and corrosion resistant properties to the friction surface. Related systems, methods, articles of manufacture, and the like are disclosed.

This friction material contains a fiber base material, a friction modifier and a binder. The content of copper in the friction material is not more than 0.5 mass % in terms of elemental copper, and the content of the binder is at least 10 mass %. Furthermore, the friction material contains calcium hydroxide and zinc, and has a pH of at least 11.7.

This brake lining includes: a plurality of friction members which are arranged to be spaced from each other, each of the friction members having a front surface that is to face a sliding surface of a brake disk; a back board fastened to a back surface of each of the friction members; a base plate that supports each of the friction members at a region including a center portion of each friction member; and an elastic member disposed between the base plate and the back board, on a back surface side of each friction member. Two friction members that are adjacent to each other are taken as a pair, and the back board is fastened to each of the pairs of friction members. In each pair of friction members, the two friction members are arranged along the circumferential direction of the brake disk.

A disc for a disc brake for automotive use comprises a hat provided with a plurality of hat seats, a braking band provided with a plurality of band seats, and a lug connection system.

A sintered friction material, in which a content of a copper component is 0.5 mass % or less, is provided. The sintered friction material includes a titanate and a metal material other than copper, as a matrix. A content of the metal material other than copper is 10.0 volume % to 34.0 volume %. A method for manufacturing a sintered friction material is provided. The method includes a mixing step of mixing raw materials containing a titanate and a metal material other than copper, a molding step of molding the raw materials mixed in the mixing step, and a sintering step of sintering, at 900? C. to 1300? C., a molded product molded in the molding step. In the sintered friction material, the titanate and the metal material other than copper form a matrix, and a content of the metal material other than copper is 10.0 volume % to 34.0 volume %.

A brake disc, also referred to as a rotor, for a disc brake has the function of interacting with a brake lining as a friction partner in the disc brake. The brake disc is formed at least in part of a material having a molybdenum content of ?50 wt. %.

A tolerance ring includes a ring body having a spring property, an abutment joint portion formed between circumferential end edges of the ring body, and protrusions protruding radially from the ring body, each having a reaction force due to radial rigidity. The tolerance ring includes an abutment joint semi-circumferential region and an opposing semi-circumferential region facing the abutment joint portion. The tolerance ring includes first and second X-direction semi-circumferential regions separated by a straight line connecting the abutment joint and opposing portions. The Y-direction passes through the axis center of the ring body and the abutment joint, and the X-direction is orthogonal to the Y-direction. The sum of the X-direction components of the reaction force vector in the first X-direction semi-circumferential region is the same or smaller than the sum of the Y-direction components of the reaction force vector in the abutment joint semi-circumferential region.

In some implementations of the current subject matter, a brake rotor can include a supporting layer applied to a friction surface of a brake rotor substrate, which can optionally include cast iron, and a coating applied over the supporting layer. The supporting layer can include a preparatory metal, and the coating can impart wear and corrosion resistant properties to the friction surface. Related systems, methods, articles of manufacture, and the like are disclosed.