The invention relates to a PTFE polymer-based sliding material having fillers which improve the tribological properties, wherein the fillers comprise at least one phosphate, in particular calcium phosphate, calcium pyrophosphate, magnesium phosphate, magnesium pyrophosphate, lithium phosphate, hydroxyapatite or combinations thereof, and at least one metal sulfide, wherein the fraction of the metal sulfide is >2% by volume. The invention also relates to uses of said sliding material.

A method for producing a multi-layered wet friction material includes providing a bottom layer, providing a top layer produced independently of the bottom layer from different materials, and bonding the bottom layer to the top layer. The bottom layer and the top layer may be produced from different formulations and supplied as raw papers. A formulation of the top layer may include twenty to sixty percent (20%-60%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, and twenty-five to thirty-five percent (25%-35%) phenolic resin. A formulation of the bottom layer may include ten to fifty percent (10%-50%) filler, ten to forty percent (10%-40%) wood pulp, five to ten percent (5%-10%) aramid, five to fifteen percent (5%-15%) carbon, and twenty-five to thirty-five percent (25%-35%) phenolic resin.

An NBR composition for rubber laminated metal having 1 to 3 parts by weight of sulfur and 1 to 15 parts by weight of a disulfide compound such as 4,4′-dithiodimorpholine or dithiodicaprolactam represented by the general formula RN—S—S—NR (wherein RN is a cyclic linking group formed together with the N atom bonded to the S atom), based on 100 parts by weight of NBR. The rubber composition that can improve the protrusion properties of a rubber layer when used for, for example, a gasket or a brake shim material that is a laminated composite metal laminated with another metal plate.

A shaped material (1, 1′), for example a disk for a disk brake, preferably a ventilated disk, includes a plurality of layers of material (6) in a spiral shape, overlapping along a development axis (X). Each layer of material (6) it is formed by a fabric (2) predominantly or exclusively made of carbon fibres (8), at least part of the layers being impregnated by an impregnating agent. A method is for the manufacture of a shaped material.

The application relates to a brake pad for a disk brake system and to a disk brake system. The proposed brake pad comprises a back plate having a front side for facing a brake disk of the disk brake system and a friction layer arranged on the front side of the back plate for contacting a friction surface of the brake disk. The brake pad further comprises an underlayer arranged between the front side of the back plate and the friction layer. The back plate comprises a recess. The underlayer extends into the recess of the back plate.

A friction brake body for a friction brake of a motor vehicle, in particular a brake disk, includes a base body made in particular from gray cast iron and having at least one wear resistant layer formed on a friction contact surface of the base body. The wear resistant layer is made from ferritic-austenitic steel and includes an incorporated hard material particle, in particular finely distributed hard material particle.

The invention relates to a metal-plastic plain-bearing composite material (2), in particular for producing plain bearing elements for lubricated applications, comprising a metal support layer (4), in particular of steel or bronze, and comprising a sliding layer (12) of a sliding material (8) of a matrix-forming PTFE polymer base with fillers that improve the tribological properties, said sliding layer being in sliding contact with a sliding partner, characterized in that the sliding material contains as fillers 1-15 vol % barium sulfate, 5-20 vol % aramid, 1-10 vol % polyimide and 1-15 vol % fluorothermoplastic, excluding PTFE,
as well as a plain-bearing composite material and a plain bearing element.

The present invention is a laminate sheet having two laminae. The first lamina is a relatively hard material having first and second surfaces. The first surface has a plurality of raised and generally pointed piercing structures, each structure having a tip. The second lamina is graphite foil material, which is mated to the relatively hard material, such that at least some of the piercing structures pierce the graphite foil material. In one embodiment, the first lamina has no performations and is uniformly smooth. In another embodiment, the second surface also has a plurality of piercing structures and a third lamina comprising graphite foil is mated to the second surface.

Methods of making bearings using pressure sensitive macromolecular adhesive polymers and pressure sensitive polymer compositions capable of integrating fluoropolymeric properties with a catechol-amine functionality to form an adhesive system that allows bonding between metallic substrates and fluoropolymers are disclosed. Also disclosed are core-shell polymeric particles comprised of a core and a shell comprising a thermoplastic polydopamine polymer that may be prepared as a colloidal suspension and used as a hot-melt pressure sensitive adhesive capable of binding low surface energy materials, such as polyolefins and fluoropolymers, to diverse materials including metals in making bearings and/or bearing components.

A friction material presents a friction generating surface and a bonding surface facing opposite the friction generating surface. The friction material includes an organopolysiloxane resin, a plurality of fibers, and a plurality of friction particles. The organopolysiloxane resin includes siloxy units independently represented by the following formula: (R.sub.1SiO.sub.3/2) and/or (R.sub.2SiO.sub.2/2); wherein each R.sub.1 and R.sub.2 is independently selected from a monovalent hydrocarbon group having from 1 to 20 carbon atoms.