A brake pad assembly for a bicycle includes a spreader spring, and a pair of friction pads. The spreader spring has a first leaf, a second leaf, and a spring joint joining the first leaf and the second leaf together. The spreader spring is biased towards a spread position in which the first leaf and second leaf are spaced apart from each other, and is moveable to a compressed position in which the first leaf and the second leaf are moved towards each other relative to the spread position. Each leaf has a rotor facing surface, and each leaf has a set of grooves gouged into the rotor facing surface to yield a corresponding set of barbs extending from the rotor facing surface. The friction pads are secured to the rotor facing surfaces via the barbs, which are embedded in friction pads.

The present invention relates to a brake disc (1) comprising a bell (2) having a bell base (3) and a tubular wall (4) protruding axially (A-A) from said bell base (3), said brake disc (1) further comprising a braking band (5) having a band opening (6), wherein the tubular wall (4) of said bell (2) comprises a cup toothing system (7) extending along an outer circumference of said tubular wall (4) and having cup teeth (8) protruding outwards in a radial direction (R-R), said cup teeth (8) are circumferentially (C-C) spaced out by empty cup gaps (9), wherein each empty cup gap (9) is in the circumferential direction (C-C) between adjacent cup teeth (8), the braking band (5) comprises a ring toothing system (10) having an annular ring body (11) from which ring teeth (12) radially inwardly protruding at the band opening (6) extend, wherein said ring teeth (12) are circumferentially (C-C) spaced out by ring tooth gaps (13), wherein each ring tooth gap (13) is in the circumferential direction (C-C) between ring teeth (12); and wherein the cup toothing system (7) and the ring toothing system (10) mutually mesh, and wherein said braking band (5) is a ventilated braking band comprising a first wheel-side band plate (14) and a second vehicle-side band plate (15) mutually facing and spaced apart by a ventilation duct (16) and mutually connected by plate connecting elements (17); and wherein said annular ring body (11) of said ring toothing system (10) at least partially faces said ventilation duct (16) forming at least one annular channel (18) at the base of said first or second plate (14, 15) delimited by said tubular wall (4) of said bell (2) at least on one side thereof.

An opposed piston type monoblock brake caliper is monolithically formed of metal. The brake caliper includes a first body provided on one side of a disc accommodation space and a second body provided on the other side of the disc accommodation space. The brake caliper also includes a first bridge section and a second bridge section, each of which connects the first body and the second body. A brake fluid path is formed in the first body, the second body and the first bridge section to connect a first cylinder in the first body and a second cylinder in the second body. A bleeder path to which a bleeder bolt is attached is formed inside the first bridge section. The bleeder path is connected to a small cross-sectional-area section of the brake fluid path inside the first bridge section.

This disclosure includes devices and systems incorporating dynamic engagement slip-clutch. Such devices and systems may include a top clutch and a bottom clutch, each comprising a plurality of lobes, humps, ramps, or peaks, and/or a plurality of valleys or flats. Some embodiments of devices and systems incorporating a dynamic engagement slip-clutch additionally comprise a washer between the top clutch and bottom clutch to separate their respective lobes, humps, ramps, or peaks and/or valleys or flats while at rest such that rotation of one of said top and bottom clutches relative to the other clutch causes the plurality of lobes, humps, ramps, or peaks to engage with the corresponding features of the corresponding clutch.

The present disclosure relates to a brake actuator unit for an electromechanical brake and to an electromechanical brake. The brake actuator unit comprises a spindle, a spindle nut, and a spindle bearing, which receives the spindle, has a spherical bearing contact surface and absorbs the axial reaction forces of the spindle when the brake is actuated.

A novel brake pad and method of manufacturing the same are disclosed, suitable for various types of vehicles including bicycles, motorcycles, and automobiles. The brake pad includes a metal backing plate, on one principal surface of which an integrally formed flange is provided, and these features are covered by a friction material. The flange is designed to provide an audible wear indication once the friction material wears down to its level, thereby offering a clear and definitive warning for brake pad replacement. This innovative wear-indication approach enhances vehicle safety by ensuring timely maintenance of the braking system. In addition, the design optimizes the brake pad's performance by improving heat dissipation and maintaining consistent braking power. The manufacturing process of the brake pad includes stamping flanges on the metal backing plate, applying the friction material, and curing the friction material to ensure durable bonding and optimal functionality.

The present invention relates to a brake clip 1, a corresponding brake carrier 50 and a corresponding floating-caliper brake 100. The brake clip 1 has a width b1 and a U-shaped portion 10 for insertion into an axially extending guide channel 60 of a brake carrier 50 of the disc brake 100. The U-shaped portion 10 is adjoined by a first support portion for supporting the brake clip 1 against a first support rail 62 which adjoins the guide channel 60, by a spring portion 22, by a second support portion 25 for supporting the brake clip 1 against a second support rail 70 which adjoins the guide channel 60, and by a first fixing portion 30 for fixing the brake clip 1, wherein the first fixing portion 30, or the first fixing portion 30 and a part of the second support portion 25, is cut out such that the width of the metal sheet remaining adjacent to the cutout 32 lies in a range from 0.4 times to 0.6 times the width b1.

A friction material is disclosed for a braking pad comprising a binder comprising a mixture of a phenolic resin or a phenol formaldehyde resin and of a thermoplastic. The total amount of phenolic resin or phenol formaldehyde resin and of thermoplastic is between 2 and 60% in volume of friction material. The ratio in volume between phenolic resin or phenol formaldehyde resin and the thermoplastic is from 20 to 80% in volume. Preferably the thermoplastic has a melting temperature between 120 and 350 C. and comprises a polyamide or a thermoplastic polymer with N-H bond, either in the backbone or in the pendant group. More preferably the thermoplastic material is chosen in the group constituted by PA4, PA6, PA1, PA11, PA12, PA410, PA610, PA66, PA612.

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.