A friction disk includes a friction disk core having an inner diameter edge, an outer diameter edge, and a first surface with multiple mortises extending radially across the first surface. The friction disk further includes a first wear liner having two wear liner segments each including a wear surface and a non-wear surface having a tenon with a complimentary shape to each of the multiple mortises, the tenon of each wear liner segment being configured to be received by a corresponding mortise of the multiple mortises to couple the wear liner segments to the friction disk core to form an annular liner.

The present invention relates to a method and an apparatus for manufacturing a brake pad, which are configured to stabilize quality of the brake pad. The present invention provides a method of manufacturing a brake pad including a friction material and a backing plate which are coupled to each other, the method including: a preliminary process of preparing friction material powder and the backing plate; a forming process of forming the friction material powder in the form of the friction material and attaching the friction material to one surface of the backing plate; a quality stabilization process of heating and pressing the friction material after the forming process is completed; a heat treatment process of heating the brake pad at a predetermined temperature after the quality stabilization process is completed; and a grinding process of grinding the friction material.

A friction disk includes a friction disk core having an inner diameter edge, an outer diameter edge, and a first surface with multiple mortises extending radially across the first surface. The friction disk further includes a first wear liner having two wear liner segments each including a wear surface and a non-wear surface having a tenon with a complimentary shape to each of the multiple mortises, the tenon of each wear liner segment being configured to be received by a corresponding mortise of the multiple mortises to couple the wear liner segments to the friction disk core to form an annular liner.

A preform for a carbon-carbon composite including a plurality of fibrous layers stacked and needled-punched together to form the preform in the shape of an annulus having an inner radial section and an outer radial section. Each fibrous layer includes a respective plurality of fabric segments comprising at least one of carbon fibers or carbon-precursor fibers. At least one fibrous layer includes a first fabric segment forming at least a portion the inner radial section, the first fabric segment defining a first segment bisector and a first fiber orientation angle, and a second fabric segment forming at least a portion the outer radial section, the second fabric segment defining a second segment bisector and a second fiber orientation angle, where the first and second segment bisectors are radially aligned and the first fiber orientation angle is different than the second fiber orientation angle.

A friction disk of a braking system may include a friction disk core and a first wear liner. The friction disk core has a first surface and defines a first channel extending radially across the first surface, according to various embodiments. The first wear liner is coupled to the first surface of the friction disk core and includes a first wear surface and a first non-wear surface, according to various embodiments. The first wear liner further includes a first rib protruding from and extending radially across the first non-wear surface of the first wear liner, according to various embodiments. In an installed state, the first rib is received within the first channel, according to various embodiments.

A metallic support of a brake pad delimited between a first and a second face, and having a perimeter edge substantially perpendicular to the first and second faces. The first face receives a block or layer of friction material, and the second face receives a dampening element. The first face has at least one projecting part extending cantilevered spaced apart from the perimeter edge so as to be completely embedded within the block or layer of friction material. The at least one projecting part is delimited at the top by a first surface upon which there is at least one first cavity filled with the block or layer of friction material. The second face has at least one second cavity forged as the at least one projecting part. At the at least one first cavity, there is at least one first relief shaped as the at least one first cavity.

The present disclosure relates a brake disc and a method of manufacturing the same, in which the depth of the coating layer containing a nitride is adjustable and corrosion resistance and wear resistance can be improved. A brake disc according to an embodiment of the present disclosure includes: a disc base material made of gray cast iron; and a coating layer formed on a surface of the disc base material and including a nitride produced as nitrogen is diffused into a ferrite matrix structure.

The invention relates to a method for applying sand to the inner radius of drum brake linings comprising the following steps: a) rolling a UV-curing adhesive onto the inner radius of a drum brake lining, b) applying a frictional grain, such as zircon sand, to the adhesive layer, c) removing the frictional grain not retained by the adhesive from the lining surface, and d) curing the coating by means of UV radiation.

A method for manufacturing a clutch body for a synchronizing device of a transmission includes the steps of: a) providing an externally toothed clutch disk, b) providing a counterfriction ring, c) applying a friction lining onto the counterfriction ring, d) establishing a non-releasable connection between the clutch disk and the counterfriction ring, and e) upsetting a portion of the counterfriction ring at least partly provided with the friction lining in radially inwardly facing direction, so that a counterfriction cone is formed, which is provided for cooperation with a friction surface of the synchronizer ring.

A method of making a wet friction material layer includes joining filler particles and fibers together to form a material base; adding water based phenolic resin to the material base; and curing the water based phenolic resin.