Abstract: A brake disk includes at least one friction ring, which includes a base member. The brake disk also includes at least one hole and/or groove located in the friction ring. The brake disk also includes at least one coating, which is applied to at least portions of the friction ring. The coating comprises at least portions of the transition between the hole and/or groove and the friction ring. At least portions of the transition between the hole and/or groove and the friction ring are constructed to be rounded and/or chamfered in a flat manner.

Abstract: A friction material part is provided. The friction material part includes a first segment and a second segment, an end of the first segment overlapping an end of the second segment to form a joint that is compressed more than intermediate portions of the first and second segments. A method for manufacturing a friction material part is also provided. The method includes overlapping an end of a first friction material segment and an end of a second friction material segment; and compressing the overlapped ends to form a compressed joint.

Abstract: The invention relates to an electromechanical brake, in particular for aircraft, the brake comprising a support carrying at least one electromechanical actuator comprising a pusher that is axially displaceable towards friction elements in order to apply a braking force to the friction elements, selectively, wherein the actuator is mounted on the support via a connection member allowing at least a portion of the actuator carrying the pusher to tilt angularly.

Abstract: The invention relates to a brake disk having a face-end friction ring portion on which a brake disk cam provided with a cam bore is molded. In order to further develop the brake disk in such a manner that adequate safeties with respect to the permissible material values on brake disks for high-energy application cases are provided and material stresses in the region of the brake disk cam of the brake disk, which are caused through temperature differentials within the brake disk as a consequence of high braking energy inputs, are reduced, the brake disk cam includes two arm parts which extend spaced from each other from the face-end friction ring portion in the direction of the cam bore and converge in front of the cam bore.

Abstract: A central control braking system includes: a pedestal; at least one caster mounted at a bottom portion of the pedestal; a brake transmission shaft for controlling the caster; a plate girder movably connected to the pedestal; a pedal fixed to the plate girder; and a reversing rotary assembly connecting the plate girder and the brake transmission shaft, wherein the reversing rotary assembly enables the brake transmission shaft to rotate in reverse under the control of the pedal.

Abstract: The invention relates to a friction brake which can be used for a shaft and a bearing part that can be rotated in relation to each other about a rotational axis (3). The friction brake comprises two brake elements: the first brake element has a first friction surface (24) and has to be mechanically connected to the bearing part, and the second brake element has a second friction surface (25) and has to be mechanically connected to the shaft. The connectible and disconnectable dynamic effect of an actuation mechanism forces the two brake elements against each other during a braking action or stop in such a manner that the two friction surfaces (24, 25) rest one on the other and contact each other in the area of a contact surface (29, 30). The contact surface (29, 30) covers only a part of every friction surface (24, 25) at any point in time during a braking action or stop.

Abstract: An inertia brake assembly is disclosed. In an embodiment, the inertia brake includes a rotor hub subassembly and an inertia brake subassembly. The inertia brake subassembly includes a first reaction plate arranged opposite a first side of the rotor hub assembly, a second reaction plate arranged opposite a second side of the rotor hub assembly, and one or more connector subassemblies connecting the first reaction plate to the second reaction plate. The one or more connector subassemblies include at least one or more resilient straps, and a spacer disposed between the one or more resilient straps and one of the first and second reaction plates. The spacer is arranged about a diameter of the rotor hub subassembly. In an embodiment, the inertia brake assembly includes a sleeve. An inertia brake subassembly is also disclosed.

Abstract: A disc brake assembly comprising a brake rotor including a rotor flange having a circular countersink extending through a thickness of the rotor flange, with a smooth, beveled outer portion for receiving a rotor retention screw in a recessed position, and a threaded inner portion for receiving a prying screw; and a wheel hub including a hub flange having a circular bore for the rotor retention screw extending through a thickness of the hub flange, the circular bore having a threaded inner portion for receiving the rotor retention screw from the countersink for securing the brake rotor to the wheel hub. A diameter of the inner portion or the circular countersink is larger then a diameter of the circular bore to allow insertion of the prying screw into the circular countersink but not into the circular bore.

Abstract: Pistons 3 and 7 are pressed to a friction member 11 at two points that are positioned at a rotating-in side and a rotating-out side in a rotating direction of a brake rotor 10. An axial force control is performed for the piston 3 on the rotating-out side, and a position control based on the position of the piston 3 on the rotating-out side is performed for the piston 7 on the rotating-in side.

Abstract: An aircraft brake rotor includes a circular rotor disk (10) having first and second walls (12) and a peripheral wall (14) connecting the first and second walls (12), the peripheral wall (14) including at least one notch (16) having a bottom wall (18) and first and second side walls (20) extending away from the bottom wall (18), an insert (22, 50, 60) having a first portion (24, 62) mounted against the first side wall (20) and a retainer (30, 74) connected to the rotor disk (10) and having at least one projection (38, 82), a portion of the at least one insert (22, 50, 60) extending between the at least projection (38, 82) and the first side wall (20), thus limiting movement of the insert (22, 50, 60) in a direction perpendicular to the first side wall (20).

Abstract: A clamp device is provided that can prevent a table from being tilted at the time of clamping, can suppress a displacement in an axial direction at the time of clamping to a minimum, and also can be suitably used for a table unit with its table swiveling at a high speed. A table has fixedly attached thereto a braking plate swiveling with the table. A frame has fixedly attached thereto fixing plates having inner flange portions protruding to a swiveling axis side of the table with a predetermined pitch so that the inner flange portions interpose the braking plate. Moreover, a hydraulic cylinder having a clamp piston freely movable between a clamp position at which the braking plate is clamped and an unclamp position at which the clamp state is released is provided with the flame.

Abstract: The invention relates to a rotor (23) for an electrical machine (1), comprising a rotor shaft (4), rotor laminations (5), and a rotor brake body (6). The rotor laminations (5) and the rotor brake body (6) are fixed to the rotor shaft in an axially interspaced manner. According to the invention, the rotor laminations (5) and the rotor brake body (6) are directly interconnected in a rotationally fixed manner.

Abstract: A dirt scraper for a disc brake of a vehicle includes at least one scraper blade adapted to abut a braking surface of the disc for scraping off dirt when the disc rotates, and a heat sensitive structure for moving the at least one blade from a first position where it abuts the surface of the disc to a second position where it does not abut the surface of the disc, when the temperature of the heat sensitive structure increases, and vice versa.

Abstract: A brake assembly, in particular of a hydraulic wheel drive, comprising a disk package formed of a plurality of outer disks and corresponding inner disks, and compressible a piston assembly for braking. A first hydraulic cycle acts on the piston assembly for driving braking and a second hydraulic cycle acts on the piston assembly for parking braking. The piston assembly includes a driving brake piston which contacts the disk package and is able to be pressurized by the first hydraulic cycle and also able to be pressurized by an adjacent separate parking brake piston interacting with the second hydraulic cycle.

Abstract: A force sensor for an electromechanical brake has a closed ring having a C-shaped profile that is open inwardly. Force is introduced along the inner circumference of the ring.

Abstract: A brake actuator includes an annular housing (10b) having first and second opposite radial faces (A and B). Cavities are formed in the housing (10b), some opening onto face (A) and some onto radial face (B). Two pistons (16) are disposed in each of the cavities and are movable under the influence of fluid pressure exerted from within the respective cavities to a braking position where the pistons (16) extend axially away from the cavity. The piston (16) bear against a backing plate of respective brake pads (68) forcing the brake pads (68) against brake discs (54 and 56). By providing cavities on both faces (A and B) of the housing (10b), an actuator can simultaneously apply brake pads to two spaced apart rotating discs (54 and 56). A plurality of actuators can be coupled together to act on a plurality of axially spaced apart brake discs to form a multi-pad multi-brake system.

Abstract: A caliper body for a fixed-caliper disk brake which can be associated with a disk in a manner such that its distance from the disk is kept unchanged and which is unusually strong and capable of a silent braking action comprises a first half-body which can house first means for generating the braking force and which can be arranged facing a first braking surface of one side of the disk, and a second half-body which can house second means for generating the braking force and which can be arranged facing a second braking surface of an opposite side of the disk, the first and second half-bodies being connected, by fixing means, to bridge elements which can be arranged astride the disk; the bridge elements are portions of a single element for connecting and supporting the half-bodies.

Abstract: A disc brake system of the kind comprising an axially fixed hub and at least one slideable brake disc comprises a resilient device acting between the disc and the hub to control certain aspects of the movement of the brake disc during use. Despite the thermal differential arising in use between the brake disc and the central hub due to the localized heat generation of the brake system and the mass and thermal capacity differences between the hub and the brake disc, whereby the hub would be expected to provide a more satisfactory mounting, the resilient device acting between the disc and the hub to control the disc dynamics is mounted on the disc.

Abstract: A braking device includes a brake wheel, a pair of rotation shafts, a pair of brake arms which is rotatably supported through the rotation shafts, a pair of brake pads arranged at one end of the brake arms and contacting and separating from the brake wheel, and a brake part connected to another end of the brake arms for providing and releasing a braking force of the brake pads. When the centers of the rotation shafts are fulcrums, the centers of contact of the brake pads with the brake wheel are points of action, and the connections between the brake arms and the brake part are power points, the fulcrums, the points of action, and the power points are located in a semicircular area of the brake wheel.

Abstract: A disc brake (3) of the kind comprising an axially fixed hub (2) and at least one slidable brake disc (4, 6) comprises resilient means (10) acting between the disc (4, 6) and the hub (2) to control certain aspects of the movement of the brake disc (4, 6) during use. The resilient means (10), is of a leaf spring format, acting between the disc (12, 14) and the hub to control the disc dynamics is mounted on the disc (4, 6). This leads to advantages in terms of spring structure and cost and independence of the resilient bias with respect to disc position and disc (12, 14) relationship to another disc (if present) and with respect to simplicity of mounting and avoidance of dirt entrapment. The mounting of the resilient means comprising clipping the resilient means over a drive key (12) of the disc (4, 6) though an aperture (23) defined within the resilient means (10) and having associated stiffening elements or strips (26a, 26b).

Abstract: An integrated drive unit having planetary gearing and an annular cone brake element affixed to a hydraulic motor barrel. A brake piston encircles the hydraulic motor barrel and is selectively engageable with the cone brake element to actuate the cone brake element into frictional contact with the spindle of the integrated drive unit to act as a safety/parking brake. The cone brake element is formed of a bronze-type powdered metal of sufficient durability to withstand dynamic braking. The hydraulic motor is selectively connectable to a transmission including planetary gearing. The planetary gearing of the present invention includes a planet gear carrier having carrier pins formed of a relatively low carbon steel and locally hardened over the area on which the planet gears will be supported. In an alternative embodiment, a carrier pins sleeve formed of VESPEL is utilized as the bearing between the planet gear and the carrier pin.

Abstract: The invention relates to a fiber-reinforced ceramic body and a method for producing same. The ceramic body consists of a core and a boundary layer (93, 94) which is joined to the core and has at least one outer surface (96, 97) which can preferably be subjected to tribological stress. The core consists of one or more layers (92) of which at least one is reinforced with long fibers. The boundary layer (93, 94) is reinforced with short fibers. The fibers are preferably reaction-bonded in a matrix by melt infiltration and are made of high-temperature resistant fibers with covalent bonds on the basis of silicon, carbon, boron or nitrogen.

Abstract: A brake assembly utilizes a conical brake drum and matching conical brake lining assembly to provide a more efficient braking system. An adjuster mechanism with a pair of conical adjuster members is controlled by an electric motor and worm gear drive. As the lining wears, the adjuster mechanism pulls the conical adjuster members towards one another to force the brake linings outwardly to maintain a predetermined distance between the drum and the brake lining assembly.

Abstract: The invention is a brake disk. The brake disk has at least one friction ring which can be engaged by a brake shoe on at least one side. The friction ring is divided into at least two ring segments having mutually facing end areas configured to be coupled with one another adjacent a junction and separation area. A separation gap is formed between the mutually facing end areas, which mesh with one another. At least one connection device is positioned in the junction and separation area for coupling the ring segments together.

Abstract: A friction engaging device, such as, for example a braking disc and a friction couple, brake disc/pad are disclosed. The friction engaging device is a carbon-ceramic composite comprising a carbon fibre network and a filler comprising silicon carbide. One device comprises, by weight, from 35-50% carbon fibre, 14-30% free carbon, 10-28% silicon carbide, 5-14% silicon and 5-14% silicon oxide. Also disclosed is a method of producing a friction engaging device in which a carbon-carbon composite comprising 10 to 60% by weight of a carbon fiber network and from 40 to 90% by weight free carbon is impregnated with silicon under conditions such that substantially all of the carbon fibre network remains as carbon fiber, and a proportion of the free carbon present in the volume is converted within the volume to silicon carbide by reaction with the silicon.

Abstract: In the case of vehicle wheels the single-phase wobble may not exceed a certain maximum value if the vehicle is to satisfy certain demands of comfort. However, in this case it is of little use to measure the wobble of the vehicle brake disc and that of the vehicle hub carrying the said brake disc individually, because this is unable to give any statement concerning the wobble of the entire constructional unit. With the aid of the method according to the invention, the wobble component, due to a wheel hub, of the constructional unit mentioned can be ascertained exactly if the precise data of the very precisely produced master brake disc, which is used in the measurement instead of the vehicle brake disc, is known. The method can only be carried out successfully using the master brake disc mentioned.

Abstract: A disc brake rotor is retained on a bearing hub assembly during handling, shipping and installation of the wheel by a retaining clip. The clip is snapped into a machined groove on the bearing pilot hub after the disc brake rotor is assembled to the bearing and gauged for optimal runout. The retaining clip acts as a physical block thereby keeping the rotor positioned on the bearing hub and eliminates the need for specific orientation of a retention device or removal of material from the disc rotor or wheel as in prior systems.

Abstract: A brake control apparatus comprises a brake disk, a main brake mechanism, a subsidiary brake mechanism, a wheel speed sensor, and a control device. The brake disk rotates with a wheel. The main brake mechanism and the subsidiary brake mechanism press a main pad and a subsidiary pad to the brake disk on the basis of an operation of a brake pedal, respectively, to apply a brake to a wheel. The control device detects whether or not the wheel becomes an instant condition preceding a locking or an initial condition of the locking, in accordance with a detected result of the wheel speed sensor. When the wheel becomes the instant condition preceding the locking or the initial condition of the locking, the control device controls the main brake mechanism to make the main brake mechanism temporarily reduce the press force of the subsidiary pad.

Abstract: Brake disc for motor vehicles, with a bowl-shaped brake-disc chamber having a wall region and a bottom region, and with a disc-shaped friction ring surrounding the brake-disc chamber coaxially with respect to a common mid-axis, the friction ring having, on its inner circumference, clearances, into which projections formed on the wall region of the brake-disc chamber engage for the play-free transmission of a torque acting on the friction ring to the brake-disc chamber.

Abstract: A rotor has an array of grooves formed on the brake pad contact surface. The array is preferably formed as a repeating pattern of regularly spaced grooves. The repeating pattern of grooves creates a plurality of radially and circumferentially offset rings of grooves. The rings can radially overlap. The rotor is preferably ventilated having two brake pad contact surfaces separated by a plurality of vanes. The grooves are preferably arranged on the brake pad contact surfaces between the vanes. The grooves can have various configurations and shapes. The array of grooves increases friction between a brake rotor and brake pads, and decreases the thermal gradient and thermal distortion on the brake pad contact surfaces.

Abstract: A vehicle brake arrangement includes a packet of alternating stator brake disks and rotor brake disks that are parallel and rotatable relative to each other. Each stator brake disk includes a support ring, support arms that are circumferentially distributed about, connected to, and protruding radially from an outer circumference of the support ring, and plate-shaped brake segments respectively removably secured in segment-shaped spaces between neighboring ones of the support arms by pivotable latch bars and spring-biased catches engaging recesses of the brake segments. Each brake segment includes a plate-shaped carrier, and a brake pad adhered onto at least one major surface of the carrier. The pads are made of sintered metal and the rotor brake disks are made of a ceramic or ceramic composite. Selective frictional contact between the sintered metal brake pads and the ceramic rotor brake disks provides effective braking friction, and the brake segments are easily exchangeable.

Abstract: Lining devices are provided for a disk brake having a brake disk, in which case the disk brake is suitable for the installation into a motor vehicle The brake disk comprises concave brake disk surfaces which interact with convex lining surfaces of the lining devices. Each lining device has a lining body with a convex lining surface and a lining support constructed in the manner of a plate, which lining support has a supporting surface for the lining body and a rear side, to which a piston of a caliber housing is guided, which caliper housing extends with a housing wall at a relatively small distance with respect to the rear side of the lining support.

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 brake assembly capable of providing a park/emergency brake facility and a service brake facility acting on the same friction pad or friction pad pair. The assembly includes a rotatable disc rotor, and at least one friction pad adapted for movement towards a braking surface of the disc rotor to provide a braking effect. The assembly further includes a first brake activating means to provide the park/emergency brake facility operable selectively to urge said one friction pad towards the braking surface of the disc rotor, a second brake activating means to provide a service brake facility selectively operable independently of the first brake activating means to urge the one friction pad towards the braking surface of the disc rotor. A third means normally acts to prevent the first brake activating means from urging the one friction pad towards the braking surface of the disc rotor.

Abstract: A brake disk made of a fiber-reinforced material includes two assembled friction rings. The friction rings, on interior sides, are provided with ribs. The two friction rings are supported with respect to one another along at least a portion of the ribs. In order to provide a suitable shaping of faces of the ribs, faces used as coupling faces are constructed such that a coupling of the friction rings is caused in precisely one rotating direction and, in a particular case, such that the coupling faces are arranged in an alternating manner.

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: Shoe and lining assemblies for use in disc brakes are disclosed that have centroids of the backing plate halves which are very close to the centroids of the actuator pistons. In this way, the forces from the pistons are evenly distributed across the backing plate surface area to result in better braking operation.

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 friction disc includes a backing plate and a plurality of tiles having a trapezoid shape. The tiles are cut from a sheet of friction material such that greater than about 80% of the sheet is utilized in the tiles. The tiles are adhered to the backing plate with a phenolic-based resin. A groove extends between adjacent tiles from an inner diameter side to an outer diameter side.

Abstract: A disc brake system comprises a hub and a disc. The hub is mounted for rotation about a central rotational axis and the disc is mounted on the hub to rotate therewith. The disc is slidable on the hub in a direction which is parallel to said central rotational axis. The system also comprises a plurality of leaf springs which are mounted between the hub and the disc, the leaf springs acting to apply radially-directed forces to the disc. The leaf springs are arranged so that they extend tangentially of the hub when the disc is not mounted on the hub but are deformed by the presence of the disc.

Abstract: A disc brake of a two-wheeled vehicle comprises two friction pads which press against either side of a disc rotating along with the wheel of the vehicle in motion. The friction pads are provided with a friction surface. The disc is provided in the surface of both sides thereof with a plurality of first arrest surfaces, second arrest surfaces, and recesses, which are all exerted on sequentially by a stress brought about by the friction surface of the friction pads at the time when the friction pads press on the disc.

Abstract: A high braking efficiency and self-draining brake disc with wear visual control comprises a braking strip (2) having two opposite faces (2′, 2″) provided each with a swept braking surface, a bell (3) fixed to the axis of a wheel and a connection throat (4) between the braking strip (2) and the bell (3), wherein at least a face, preferably both faces (2′, 2″), of the braking strip (2) is provided with radial grooves (5) shaped as a circle arc, opened towards the outside of the braking strip (2) and communicating with the connection throat (4); the radial grooves (5) being extended on all the swept braking surface.

Abstract: The invention is a brake rotor. The rotor includes a radially inner mounting section with a central mounting face for attaching the rotor to a wheeled vehicle. The mounting face has a plurality of fastener apertures and a central aperture. A hat wall extends axially from the periphery of the mounting face. The rotor also includes a radially outer annular friction section. The friction section has a pair of opposite friction surfaces machined to predetermined dimensions. Each machined friction surface is non-directional in that it does not include directional indentations. The non-directional friction surfaces include non-directional indentations such as dimples or pits.

Abstract: A disk brake includes a brake disk which is surrounded by a caliper carrying lining devices. On the side of the lining device facing a brake lining surface, the brake disk has a concave brake disk surface. In order to at least partially reduce the noise emitted occurring during slow-down braking, the concavity of the brake disk surface and the convexity of the brake lining surface are constructed such that a noise-reducing form closure occurs.

Abstract: A disc rotor used in a disc brake which generates a vibration having a large component in the axial direction of the disc rotor when a brake pad is pressed against the disc rotor. The disc rotor has a hat portion to be fixed to an axle hub of a vehicle. A sliding portion, which is pressed by a brake pad so as to generate a brake force, is connected to the hat portion via a connecting portion. A plurality of ribs are provided to increase a rigidity of the connecting portion. A low-rigidity portion having a rigidity less than the sliding portion and the connecting portion may be provided between the sliding portion and the connecting portion.