Abstract: Some embodiments of the present invention are directed to a brake rotor which may include a central mounting portion for mounting the brake rotor on a hub, a first annular braking surface and a second annular braking surface, where each braking surface includes an inner diameter and an outer diameter, a bridge provided between the central mounting portion and the inner diameter of at least one of the first and the annular braking surfaces and a plurality of ribs positioned proximate to the bridge.

Abstract: A caliper assembly has a one-piece housing with a first and second wall opposing one another. A pair of bridge sides connect the first and second walls. A bore is formed in the first wall to receive a piston assembly. An opening is formed between the first wall, second wall and pair of bridge sides. The opening enables access into the caliper body. At least one aperture is formed in the second wall. The aperture is continuous with the opening to enable access into the body.

Abstract: A disc brake rotor is provided which is balanced by removal of metal from between two opposed friction faces of the rotor. The friction faces are provided by two discs which are separated from each other by radially extending ribs.

Abstract: A disc brake comprises a base, a disc, two linkages pivoted on the base, wherein the linkages are respectively extended at opposite sides of the disc and along an orientation deviated from a diameter orientation of the disc, two brake blocks mounted on the linkages respectively and facing the disc wherein the brake blocks keep predetermined distances from the disc at initial, and a cable connected to the linkages to move the linkages towards the disc. The linkages serve as a pair of type 2 levers wherein the arm of input (the cable) is larger than the arm of output (the brake block). The linkages, therefore, have mechanical advantages larger than 1 so that less power of the cable input will provide greater power of braking.

Abstract: An air disk brake caliper housing is disclosed. The caliper housing includes a open rear end portion that opens into a passageway for receiving an actuator/adjuster mechanism. To minimize the outer contour of the caliper housing to alleviate packaging concerns with respect to a vehicle axle, the passageway is offset above an operating position for the actuator/adjuster mechanism. As the actuator/adjuster mechanism is inserted into the offset passageway, it passes a retaining step formed in the interior of the passageway to provide sufficient running clearance for gears of the actuator/adjuster mechanism. Once passing the retaining step, the actuator/adjuster mechanism may be dropped down to the appropriate operating height and installed in the operating position within the caliper.

Abstract: Antioxidant coating compositions containing 10-75 wt % H20, 20-65 wt % H3PO4, 0.1-20 wt % alkali metal mono-, di-, or tri-basic phosphate, 0-2 wt % hydrated boron oxide, 0-18 wt % KH2PO4, 3-10 wt % of a transition metal oxide, and 0-20 wt % hydrated manganese phosphate, 0-25 wt % Al(H2PO4)3, and 0-10 wt % Zn3(PO4)2, provided that at least one of Al(H2PO4)3, Zn3(PO4)2, and hydrated manganese phosphate is present. Also, brake discs made from carbon composite articles having their surface treated with certain antioxidant coatings. During a manufacturing process, carbon matrix 15 of brake disc 11 is covered on its outer and inner edges with antioxidant layers 19 and portions of the working surface of brake disc 11 may also be covered with antioxidant layers 13, potentially decreasing the fitness of the brake disc for service. In accordance with this invention, brake disc 12 is manufactured from brake disc 11 by the removal from its working surface of antioxidant layers 13.

Abstract: Disc brake for a heavy vehicle having a disc-shaped rotor consisting of a cast iron alloy and a calliper supporting a brake lining which is intended to be pressed against the said rotor during braking.

Abstract: Method of constructing a caliper (34) in a sliding disc automotive disc brake (10) provides the caliper comprising a central caliper bridging portion (122) between caliper lateral or end portions and integrated with both said lateral or end portions (124, 126) by being formed as an integrated cast structure therewith. This method of construction provides assembly and cost benefits while preserving the necessary strength from known multi-piece assembled caliper constructions.

Abstract: A gerotor motor including a brake package, and a method for setting the load holding torque of the brake package. The endcap assembly (21) defines a set of internal threads (85) disposed adjacent a brake package piston member (75). An enclosure member (87) defines a spring seat (115) for a set of Belleville washers (105), and defines a set of external threads (88) engaging the internal threads (85). Upon assembly of the motor and brake package, a resistance load is applied to a motor output shaft (43) corresponding to a desired load holding torque. The motor is pressurized sufficiently to rotate the output shaft in opposition to the resistance load. The enclosure member (87) is rotated so that it moves axially in a direction to increase the bias preload on the Belleville washers (105) until the output shaft (43) no longer rotates.

Abstract: A friction brake apparatus includes a rotary member and a friction material, the friction material coming into pressing contact with a friction surface of the rotary member so as to brake the rotary member by means of friction force. A wear-particle-removing device for removing adhering wear particles from the friction surface of the rotary member is provided at least downstream or upstream of an installation position of the friction material with respect to a rotational direction of the rotary member.

Abstract: The invention relates to a method and apparatus for positioning components of a brake system, which includes a push rod, a ball end coupled to the push rod, and a force transfer member placed between the push rod and the ball end. The force transfer member has both a flowable property and a solidifying property, whereby the force transfer member is flowable when being placed between the push rod and ball end and, after a passage of time, the force transfer member solidifies.

Abstract: A braking band (14) of a disc-brake disc (10), which has an unusual ability to improve the cooling efficiency of the disc brake, comprises a first plate (20) and a second plate (22) arranged face to face so as to form a space (24). A set of spacer elements (26-32) which connect the first plate (20) and the second plate. (22) constitutes a module which is repeated around a circle coaxial with the braking band. The set comprises a first fin (26) which connects the first plate (20) to the second plate (22) and which extends along an arcuate line (36). The set of spacer elements further comprises a second fin (28), a third fin (30), and a fourth fin (32) which connect the first plate (20) to the second plate (22) and which extend along a further arcuate line (46) interposed between two adjacent arcuate lines (36).

Abstract: Method and apparatus for mounting an axially slidable brake disc (12) in a spot-type automotive disc brake provides a technique for refining the brake performance by largely eliminating vibration and/or judder in use by the adoption of a brake disc friction face (18) inner edge which is radially outwardly displaced with respect to normal practice and is likewise (radially) relatively close to the teeth of keys of the disc drive system. In this way the more slender braking surface of the brake disc together with its relatively closely adjacent axially slidable drive, leads to improved dynamic performance while maintaining thermal capacity requirements.

Abstract: The floating caliper of a disk brake has three bridge arms, which extend over the brake disk, wherein one of the bridge arms, preferably the middle arm (34), is bifurcated into two branches (34a, 34b).

Abstract: A wheel support for providing a connection, rotatable about an axis (S), between a wheel of a vehicle which can be braked by a disk brake and the stub axle (6) of the vehicle comprises a bell (24) suitable for supporting a braking band (25) and a connection flange (14) for the connection of the vehicle wheel. The bell (24) and the connection flange (14) are formed integrally, constituting a single body (2) which can be connected rotatably and releasably to the stub axle (6) of the vehicle.

Abstract: A quick mounting combined wheel and brake assembly, includes a hub for mounting on a vehicle axle for rotatably mounting a wheel and at least one component of a brake assembly, a quick connect device for detachably mounting the hub on the axle, a brake assembly having a stationary component mounted on the hub, and a rotating component mounted on and rotatable with the wheel, and a brake actuator mounted in the axle and extendable into the hub for actuating the brake assembly

Abstract: The present invention concerns a disc brake mainly for road vehicles. The disc brake comprises a fixed caliper straddling one or more brake discs, one or more thrust plates and a number of brake pads. The brake discs are received in a non-rotating but axially moveable relationship on a rotating hub. The brake pads are guided axially moveable in the caliper taking up the load of the brake pads.

Abstract: A brake shoe (10) for a drum brake system (40) is provided with a brake lining (12) having a friction surface (14) which faces braking surface (60) of a brake drum (38). The lining (12) is characterised by the provision of one or more grooves (16) extending across the friction surface (14). The shoe (10) may be incorporated in a cooled drum brake system (10) in which cooling is provided by ventilation holes in the drum (38). Cooling may be further enhanced by the provision of ventilation holes (66) in a back plate (46) of the system (40). In an alternate system, cooling is provided by sealing the drum (38) to form a space for holding a volume of oil.

Abstract: A braking apparatus and method are provided for applying a braking force to the inboard and outboard sides of a brake rotor, through the use of a pair of pistons disposed in a back-to-back relationship in a cylinder bore of a housing, and defining a space between them in the cylinder bore for receipt of a pressurized fluid. The rotor is rotatable about a rotor axis, and the cylinder bore defines a bore axis extending parallel to the rotor axis. A first piston of the pair of pistons is slidably disposed in the cylinder bore for movement in a first direction along the bore axis toward the inboard side of the rotor for applying a braking force to the inboard side of the rotor, and the second piston of the pair of pistons is slidably disposed in the cylinder bore for movement in a second direction opposite the first direction along the bore axis for applying a braking force to the outboard side of the rotor.

Abstract: Antioxidant coating compositions containing 10-75 wt % H2O, 20-65 wt % H3PO4, 0.1-20 wt % alkali metal mono-, di-, or tri-basic phosphate, 0-2 wt % hydrated boron oxide, 0-18 wt % KH2PO4, 3-10 wt % of a transition metal oxide, and 0-20 wt % hydrated manganese phosphate, 0-25 wt % Al(H2PO4)3, and 0-10 wt % Zn3(PO4)2, provided that at least one of Al(H2PO4)3, Zn3(PO4)2, and hydrated manganese phosphate is present. Also, brake discs made from carbon composite articles having their surface treated with certain antioxidant coatings. During a manufacturing process, carbon matrix 15 of brake disc 11 is covered on its outer and inner edges with antioxidant layers 19 and portions of the working surface of brake disc 11 may also be covered with antioxidant layers 13, potentially decreasing the fitness of the brake disc for service. In accordance with this invention, brake disc 12 is manufactured from brake disc 11 by the removal from its working surface of antioxidant layers 13.

Abstract: The present invention concerns a brake caliper and a brake mechanism for a disc brake received in the caliper. The brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a cover. The caliper is of an open design having an opening in the wall furthest from the brake disc. A bearing bracket is mounted from the inside of the caliper in the opening.

Abstract: A braking unit is provided. In one embodiment, the braking unit comprises a base member, a guide member, a flexible rod, an actuator adapted to induce deformation of the rod, and a brake pad. One end of the flexible rod is fixedly attached to the base member while another end is slideably disposed within a passageway defined by the guide member. The brake pad is positioned adjacent the flexible rod such that deformation of the rod causes lateral movement of the brake pad. The braking unit can be incorporated into disc and drum-type braking assemblies and systems.

Abstract: The present invention concerns a brake caliper and a method for assembly of a brake mechanism for a disc brake in said caliper. The caliper surrounds the brake disc on both sides and has a cavity for receiving the brake mechanism. The caliper is of an open design having an opening in the wall furthest from the brake disc. The inside of the caliper may be machined through the opening, before the brake mechanism is assembled in the caliper.

Abstract: The invention relates to a spring-loaded brake with a first housing part (2) connected to a first brake calliper arm (26) and a second housing part (14) connected to a second brake calliper arm (28) and with an actuation device (18), by means of which the first and second housing part (2, 14) are capable of being moved relative to one another. The air passage as well as the wear of this spring-loaded brake can be monitored reliably and in a simple manner by means of a measuring device (7, 10) which continuously monitors the change in the relative position of the housing parts (2, 14).

Abstract: A torque tube and conical back plate for aircraft brakes including a torque tube having a truncated back plate of thin metal construction extending from the outboard end thereof. The conical back plate is characterized by inner and outer reinforcing rings, such rings providing a compressive force at opposite ends of the truncated cone of the back plate, thus allowing the back plate to resist bending and deflection. In accordance with the invention, the cross sectional centers of mass of the inner and outer reinforcing rings are shifted outboard from a projection of the center plane of the conical back plate, such positioning enhancing the stiffening and reinforcing capabilities of the reinforcing rings.

Abstract: There is provided a simplified loading device in which a permanent magnet is arranged between a moving element and a fixed element for holding the moving element, a magnetic fluid is disposed in a gap developed at some midpoint in a magnetic circuit in which the magnetic flux of the permanent magnet passes through the moving element, and a shearing force of the magnetic fluid produced by the magnetic flux of the permanent magnet is exerted on the moving element as a loading force.

Abstract: An all-terrain board (10, 50) ridden by a rider (18) standing on the board (10, 50) is provided with a braking member which can be engaged by a leg of the rider (18) and moved into braking engagement with a wheel (14, 52). The braking engagement may be directly onto a tyre (15) of the wheel (14). Alternatively, the braking engagement may be indirectly onto a wheel (52) through a linkage connecting the brake (60) to a brake mechanism (74) acting on a rim (56) of the wheel (52).

Abstract: Ventilated disc for a disc brake consisting of a friction track (1, 2) and a disc hub (3) connected by means of pins (10) that are partly embedded as inserts anchored irremovably in the material of the track (1, 2) and partly inserted, in such a way that they can freely slide axially, in the material of the disc hub (3), the said friction track and disc hub being obtained in a single casting process by using a common core with the pins held in the core.

Abstract: A brake device for a vehicle such as an all terrain vehicle includes a brake disk fixed to a drive shaft, and a brake caliper for braking by a nipping action of the brake disk. The brake caliper is fitted to a final gear case on an outer side of the vehicle body frame. The brake device permits maintenance work to be easily carried out and with few obstructions from neighboring parts.

Abstract: The invention provides a brake caliper backdrive apparatus and method of backdriving a brake caliper. The apparatus includes a brake caliper, a motor including a shaft operably attached to the brake caliper and, a biasing member operably attached to the shaft. The biasing member backdrives the motor thereby releasing the brake caliper. The method includes rotating a shaft to clamp the brake caliper, storing energy in a biasing member responsive to the shaft rotation, and reversing the shaft rotation using the stored energy.

Abstract: A brake device includes a brake disk fixed to a power transmission shaft, and a brake caliper for braking the brake disk by a nipping action. The brake caliper includes a caliper bracket fitted to a final gear case, and a caliper body detachably fitted to the caliper bracket, wherein the caliper body is fitted to the caliper bracket by a pair of fixing bolts. The screw-fitting directions of the individual bolts of the pair of fixing bolts are opposite to each other. The aforementioned brake device for a vehicle permits maintenance work to be quickly and easily carried out.

Abstract: The present invention concerns a brake mechanism for a brake disc. The brake mechanism comprises a brake lever, a cross bar, one or more thrust plates and a closing plate. The brake mechanism is of a modular form comprising two or more units.

Abstract: A torque tube and conical back plate for aircraft brakes including a torque tube having a truncated back plate of thin metal construction extending from the outboard end thereof. The conical back plate is characterized by inner and outer reinforcing rings, such rings providing a compressive force at opposite ends of the truncated cone of the back plate, thus allowing the back plate to resist bending and deflection. In accordance with the invention, the cross sectional centers of mass of the inner and outer reinforcing rings are shifted outboard from a projection of the center plane of the conical back plate, such positioning enhancing the stiffening and reinforcing capabilities of the reinforcing rings.

Abstract: The floating caliper of a disk brake has three bridge arms, which extend over the brake disk, wherein one of the bridge arms, preferably the middle arm (34), is bifurcated into two branches (34a, 34b).

Abstract: A screwer test bench comprises a coupling (12) designed for coupling with the head of a screwer and a controlled braking unit (14). A sensor unit (15) detects mechanical magnitudes transmitted between the coupling and the braking unit. The braking unit (14) comprises a brake with carbon friction surfaces (11) in an oil bath.

Abstract: The invention relates to a disk brake unit for a vehicle wheel with a hub having a rotational axis and with a brake disk which is slidable in the direction of the rotational axis but solidly connected to the hub both in circumferential and in radial direction, the hub being provided on its external casing for this purpose with outer dogs and the brake disk having an internal casing which is in contact with the external casing and is provided with inner dogs. The brake disk is provided with an outer ring and with an inner ring, the inner ring only forms the internal casing with the inner dogs, the inner ring and the outer ring are non-rotatably linked together, the outer ring only is provided with a friction ring, and means are provided which prevent heat from being transmitted from the friction ring to the internal casing, said means being arranged between friction ring and internal casing.

Abstract: An axle and brake mounting assembly includes a brake carrier secured directly to the axle. In one example, the brake carrier includes a portion that completely surrounds a corresponding portion of the axle. The brake carrier in one example is welded directly to the axle.

Abstract: An automatic adjustment device for a disc of a bicycle brake includes a seat adapted to be mounted to a brake device, and a sliding rod adapted to be attached to a fork of the bicycle, and the sliding rod slidably mounted on the seat. The brake device is moved horizontally relative to a brake disc of the bicycle to balance the pressure of the two opposite sides of the brake disc.

Abstract: A disc brake assembly (10) having a support member (14) secured to a vehicle and a caliper (16) having an actuation section (18) connected by a bridge (22) to an arm (20). The actuation section (18) has a bore (24) therein for retaining a piston (26) to define an actuation chamber (28). A first friction member (30) is connected to the piston (26) and a second friction member (32) is connected to the arm (20). The caliper (16) has spaced apart first (38) and a second (44) ears extending from the actuation section (18). The first ear (38) receives a first guide pin (36) that is located in a first bore (40) and the second ear (44) receives a second guide pin (42) that is located in a second bore (46) of the support member (14) to define first and second bearing surfaces that align the caliper (16) over a rotor (34) associated with a wheel of the vehicle.

Abstract: A disc brake includes a caliper housing, a pair of friction members, and a piston. The caliper housing includes a support portion and a cylinder portion coupled to the support portion. The cylinder portion has a piston chamber with a fluid inlet opening. The cylinder portion is an independent component from the support portion. Preferably, the caliper housing includes parts constructed of deformed sheet material such as press formed sheet metal. The parts are preferably fixedly coupled together by welding, brazing and bolts. The friction members are coupled to the caliper housing to form a rotor slot. The piston is mounted in the piston chamber to move one friction member between a release position and a braking position. In one embodiment, an integrated mounting member and a flanged cylinder is provided. In another embodiment, a pair of flanged cylinders with a pair of movable pistons is provided.

Abstract: It is an object of this invention to provide a cylinder device for a disc brake which facilitates the installation of thick ring portions of a dust boot into an inner circumferential groove in a cylinder bore and which also reduces the weight of a caliper. In this invention a piston is slidably received in the cylinder bore at an actuating portion of the caliper, one thick ring portion is installed into an outer circumferential groove of the piston and another thick portion is installed into an inner circumferential groove adjacent to the open end of the cylinder bore. The dust boot has an intermediate flexible portion received in a stepped large diameter bore stepped up from the cylinder bore. A cutout is formed on a peripheral portion of the stepped large diameter bore surrounding/covering said intermediate flexible portion of the dust boot.

Abstract: A caliper for use in a disk brake system where a sufficient amount of grease exists at least in a space formed between a groove for setting a piston seal provided on the inside surface of the caliper body and a piston seal to be set therein, in a space formed between the outer surface of dust boots and said caliper body, and in a space formed by the dust boots, the caliper body, the piston and the piston seal; and a wheel cylinder for use in a drum brake system where a sufficient amount of grease exists at least in a space formed between a piston and a cup seal and in a space formed by the piston, a cylinder body and dust boots.

Abstract: A disc brake (110) for use in a brake system of a vehicle. The disc brake (110) has a caliper (16) which retains first (130) and second (132) brake pad assemblies in alignment with corresponding first (134a) and second (134b) braking surfaces on a rotor (134). In response to hydraulic fluid being supplied to an actuation chamber (18) in the caliper (16), the first (130) and second (132) brake pad assemblies are moved into engagement with the first (134a) and second (134b) braking surfaces to retard the rotation of the rotor (134) and effect a brake application for the vehicle. The disc brake (110) is characterized by the first (134a) and second (134b) braking surfaces on the rotor (134) having a radial concave shape while the first and second friction member of the first (130) and second brake pad assemblies respectively have corresponding surfaces (131,133) with a radial convex shape.

Abstract: For a partial-lining disk brake in the form of a fixed-caliper brake, there is provided an attachment that is positive in the circumferential direction and relieves braking forces on the threaded join between the brake housing and the brake carrier.

Abstract: A brake block for a brake of an open-end spinning rotor includes a take-up for releasable affixing to a brake block support. The brake block has at least two braking surfaces, whereby one braking surface in relation to the supporting surface of the open-end spinning rotor is, in comparison to the other braking surface, set back a certain distance. The result is that, during the first operational application of the brake block, only one braking surface touches the open-end spinning rotor, while the other braking surface comes into effect only after a predetermined amount of wear of the first braking surface.

Abstract: A martensitic stainless steel for a disc brake rotor includes, in mass percent, 1 C: 0.04-0.10%, Si: at most 1.0%, Mn: 0.1-2.0%, P: at most 0.04%, S: at most 0.01%, Cr: greater than 11.5 to 13.5%, Al: at most 0.1%, N: at most 0.04%, Cu: 0-1.0%, Ni: 0-1.0%, Ti: 0-0.

Abstract: A disc brake attaching mechanism includes a shaft and a brake disc secured to a cycle, a brake device, a ball engaged on the shaft and rotatably received in the brake device, and a fastener for adjustably securing the ball in the brake device. The ball and the shaft may be adjusted relative to the cycle before the ball is solidly secured to the cycle. The ball has a slit for allowing the shafts of different outer diameter to be engaged into the ball. A pin may be engaged into the slit of the ball for limiting a rotational movement of the ball relative to the brake device.

Abstract: A wet-type flywheel brake system for use in a mechanical press includes a first and second brake assembly each installed within a respective brake housing space defined in a non-rotational quill. Each of the brake assemblies includes a brake lining element arranged in lateral facing relationship with the flywheel and an associated hydraulic seal-type piston that selectively moves the brake lining element into a friction-type braking engagement with the flywheel. The brake housing spaces are flooded with oil to immerse the brake lining elements. Oil for this purpose is provided from a flywheel bearing assembly integrated with the quill assembly and which is arranged for fluid communication with the quill-located brake housing spaces.

Abstract: A protective boot comprises a bellows portion, a cylindrical portion, a guide-bore-side mounting portion, a thick-walled portion, a thin-walled portion, a pin-side mounting portion and an air passage groove. In an operation for mounting of the protective boot, the pin-side mounting portion is inclined radially inward through the thin-walled portion while being slidably moved along the sliding pin, to thereby effect an escape of air contained in an annular space between the sliding pin and the boot through the air passage groove. The thick-walled portion prevents the pin-side mounting portion from bending radially inward to an undesirable extent. Thus, the operation for mounting of the protective boot can be smoothly conducted.

Abstract: A protective screen for a road vehicle brake disc includes at least one elastic holding organ (27; 30) intended to be compressed in an axial gap between a pivot support (11) and a bearing module (13), present after direct clamping of the bearing module (13) onto the pivot support (11).