Abstract: Provided is an actuator having a double-gear structure for an electromechanical parking brake. The actuator includes: a main housing having a motor seat and a gear seat; a motor assembly disposed in the motor seat and providing torque; and a gear assembly rotated by the torque from the motor assembly and performing a reduction function through a plurality of gears.

Abstract: An assembly for an induction sensing tone ring is provided. A brake rotor includes a circular pocket. A tone ring is received in the circular pocket of the brake rotor. The brake rotor has a plurality of locating tabs, with each locating tab having a slope surface. The tone ring has a plurality of retaining tabs, with each retaining tab being received between two locating tabs of the brake rotor. A retaining ring is fitted in each locating tab slope surface of the brake rotor to press fit against the retaining tabs of the tone ring.

Abstract: In one or more embodiments, a damper hub assembly includes a hub with a through-aperture defined by an aperture wall and to receive therein a portion of a crankshaft, the aperture wall including face and back surfaces and a wall surface positioned there-between, and an insert contacting the face and back surfaces and the wall surface.

Abstract: An assembly for an induction sensing tone ring is provided. A brake rotor includes a circular pocket. A tone ring is received in the circular pocket of the brake rotor. The brake rotor has a plurality of locating tabs, with each locating tab having a slope surface. The tone ring has a plurality of retaining tabs, with each retaining tab being received between two locating tabs of the brake rotor. A retaining ring is fitted in each locating tab slope surface of the brake rotor to press fit against the retaining tabs of the tone ring.

Abstract: A lock member for fixedly locking a disc brake rotor on a bicycle hub includes a base body, a first engagement portion engaged with a first coupling surface, which is included in a coupling portion that couples a rotor base body of the disc brake rotor to the bicycle hub, and a second engagement portion engaged with a second coupling surface, which is included in the bicycle hub. At least one of the first and second engagement portions includes a flexible member that projects from the base body.

Abstract: Disclosed is a braking apparatus for a recreational wheeled board apparatus such as a skate board. The braking apparatus comprising braking members slidably mounted on an axle, wheel mounting assemblies, a trigger assembly and an actuating means. The braking assembly characterised in that the actuating means comprises opposed first and second actuating levers arranged to provide a balanced force to each of the braking members such that even braking of both wheel mounting assemblies is affected when the trigger assembly is engaged.

Abstract: A wheel assembly includes a fixed axle spindle, a rotating drive shaft extending inside the axle spindle, a bearing, a hub, a brake disc, and a wheel rim. An inner ring of the bearing is mounted on the spindle, the hub is mounted on an outer ring of the bearing and the drive shaft, the brake disc and the rim are fast in rotation with the hub. The drive shaft is mounted on the hub, the brake disc is mounted on the drive shaft and the rim is mounted on the brake disc, in that order, from an interior side to an exterior side of the wheel assembly with respect to a vehicle provided with said wheel assembly.

Abstract: A brake disc arrangement for disc brakes, in particular for land vehicles, including a friction ring, an attachment adapter for attaching the brake disc arrangement to a wheel hub, and at least one connection element for connecting the friction ring and the attachment adapter, wherein the attachment adapter comprises a fastening area in which the connection element is stationarily fixed, and wherein the friction ring comprises a receptacle area in which the connection element is accommodated such that the friction ring can move radially relative to the connection element.

Abstract: A brake device for an elevator system includes a brake disk adapted to interact with a brake rotor concentrically disposed on an extension of a traction sheave. A traction sheave adapted to be concentrically disposed on a shaft of an elevator system driving apparatus includes a main body including an integrally formed extension adapted to interact with a brake device.

Abstract: A vehicle brake unit (10) includes a brake drum (11) as a rotating member of metal, brake shoes (12) as a friction engagement means, and a parking brake mechanism (20) for frictionally engaging the shoes (12) with a friction sliding surface (11a) of the drum (11) in accordance a parking brake operation by a driver. The brake unit (10) has a corrosion prevention device (30) composed of permanent magnets (31) and a coil (32) which constitute a power generation means, a battery (33) as a power storage means, and electrodes (34) as an electrical-conduction allowing means. By using electric power generated by the permanent magnets (31) and the coil (32) due to change in magnetic flux and stored in the battery (33), the corrosion prevention device (30) applies predetermined electric power to the drum (11) via the electrodes (34) which are electrically connected to the drum (11) when the brake shoes (12) are frictionally engaged with the friction sliding surface (11a) by the parking brake mechanism (20).

Abstract: An arrangement of a brake disc on a wheel hub, in particular a hub of a utility vehicle, having multiple support elements distributed on the inner circumference of the brake disc which correspond to drivers disposed on the outer circumference of the wheel hub. Securing elements which press against both the drivers and also adjacent support elements to axially secure the brake disc are provided. A rotor is disposed in the attachment area of the brake disc on the wheel hub, the rotor having attachment parts for axial and twist-locked fixing which each engage behind the securing elements.

Abstract: Provided is a rear wheel toe angle control system that can prevent the impairment of the tracking performance of the electric actuator and enable the rear wheel toe angle control system to ensure the stability of the vehicle even when the electric actuator for steering the rear wheel according to the operating condition of the vehicle is subjected to an axial force. An ECU (12) serving as a rear wheel toe angle control unit for variably controlling the rear wheel toe angle (?r) of the motor vehicle (V) by using an electric actuator (11) is provided with a duty ratio correcting unit (25) that corrects the target duty ratio (Dtgt) for achieving the target rear wheel toe angle (?rtgt) according to the load condition of the electric actuator (11) that depends on the lateral acceleration (Gy) of the motor vehicle (V).

Abstract: A braking system allows for smooth and accurate stopping of a camera dolly operating on tracks. A pair of caliper brake modules attached to the dolly frame are sized so that they fit over and at least partially surrounds the track. When the caliper brakes are activated, brake pads are moved towards the surrounded track squeezing it and providing a significant braking force. This permits the dolly to be smoothly brought to a stop with no possibility of the dolly wheel locking and skidding. The braking system can be temporarily attached to the dolly by a removable fastener system, or it can be permanently built into the dolly. A master hydraulic cylinder with a conveniently placed actuating lever is connected to the brake caliper modules by hydraulic lines so that slave hydraulic cylinders can apply the brakes in response to the actuating lever.

Abstract: A wheel braking mechanism 10 comprising a brake shaft 14, a brake drum 16, an engagement pedal 18 and a disengagement pedal 20. The brake shaft 14 has a plurality of first splines 22 provided around the brake shaft 14. A first alignment member 24 is provided at the end of each first spline 22 and has first and second oppositely directed chamfered alignment surface 24a, 24b. The brake drum 16 defines a brake socket around which are provided a plurality of second splines 28, which define a plurality of spline recesses 30. A second alignment member 31 is provided at the opposing end of each second spline 28. Movement of the brake shaft 14 towards the brake drum 16 causes the first alignment members 24 to travel down the respective alignment surfaces of the second alignment members 31, thereby aligning the first splines with the respective adjacent spline recess 30.

Abstract: A integrated outboard wet disk brake comprises a one-piece casting including a power plate, an upper portion and a lower portion. The power plate provides a backing surface for a sealed annular housing for brake cooling fluid, and having a central opening. The upper portion extends radially and axially from the power plate above the central opening, and is pivotably connected to a first component of an independent wheel suspension. The lower portion extends radially and axially from the power plate below the central opening, and is pivotably connected to a second component of the independent wheel suspension.

Abstract: Braking system for a stroller utilizes an actuator to move two brakes close to an axis to unlock the rear wheels of the stroller and away from the axis to lock the rear wheels. Each brake comprises a long arm. The brakes are disposed at the opposite sides of the axis. When the actuator is driven to rotate about the axis, the brakes move around the axis to have axial movement close to or away from the axis.

Abstract: The invention relates to a brake disk lock having a receiving gap for the receiving of a brake disk, comprising: a securing section for the closing of the receiving gap, an alarm device for the output of an alarm signal, a movable brake disk recognition device, a pressure switch having a contact element which is movable against the spring force of a first spring means by the brake disk recognition device to activate the alarm device, and an actuation section which is movable out of a release position into a securing position to close the receiving gap by means of the securing section.

Abstract: The invention relates to a brake disk lock having an actuable housing shell, a support section, an engagement hoop and a securing section, with the support section and the engagement hoop bounding a receiving gap for the receiving of a brake disk, with the housing shell being arranged on the same side as the support section with respect to the receiving gap and being movably supported at the support section and with the housing shell, the support section and the securing section cooperating with one another such that the housing shell is movable from a release position into a securing position by a movement of the housing shell relative to the support section in the direction of the receiving gap in order to close the receiving gap by means of the securing section.

Abstract: A pole wheel is described, which can be connected to a wheel hub of a motor vehicle. The pole wheel comprises an annular-shaped wheel ring extending in a radial plane, and forming an outer edge comprising a plurality of openings arranged at substantially equal angular distances in relation to each other. The pole wheel also includes a dimensionally stable stop formed directly or indirectly on the wheel ring. The stop engages the brake disc connected to the wheel hub such that the brake disc is retained in an axial direction.

Abstract: A braking system allows for smooth and accurate stopping of a camera dolly operating on tracks. A pair of caliper brake modules attached to the dolly frame are sized so that they fit over and at least partially surrounds the track. When the caliper brakes are activated, brake pads are moved towards the surrounded track squeezing it and providing a significant braking force. This permits the dolly to be smoothly brought to a stop with no possibility of the dolly wheel locking and skidding. The braking system can be temporarily attached to the dolly by a removable fastener system, or it can be permanently built into the dolly. A master hydraulic cylinder with a conveniently placed actuating lever is connected to the brake caliper modules by hydraulic lines so that slave hydraulic cylinders can apply the brakes in response to the actuating lever.

Abstract: A disk braking device for a motorcycle ensures radiation quality of a disk plate and reduces friction member abrasion of a friction member. A plurality of through-holes are formed in the disk plate and a plurality of notches are formed at peripheral edges of the disk plate. The through-holes are arranged so that one of the through-holes or less is disposed on a radial line extending from the center of the disk plate.

Abstract: An axle bearing apparatus includes a hub shaft including a wheel-mounting flange formed at its outer end portion, and a cylindrical portion formed on an inner side surface of the flange, a bearing portion press-fitted on the cylindrical portion of the hub shaft and including an inner ring, an outer ring and rolling elements disposed between the inner and outer rings, and a slinger having a through hole formed through its central portion. The through hole is fitted on the cylindrical portion such that an outer diameter of the slinger is generally equal to an outer diameter of the flange, and the slinger is press-clamped to the inner side surface of the flange by bolts press-fitted respectively in a plurality of bolt holes formed in the flange. O-rings are interposed between the flange and the slinger.

Abstract: A brake disc of the type comprising a braking band, a connecting portion and connecting spokes made in a single piece. In said disc at least one spoke exhibits an active section reduction that is sufficient to prevent vibrations and whistling during the braking phase. The disc, according to the present invention, is not subject to vibrations and possesses a limited gyroscopic effect and mass.

Abstract: According to an embodiment of the present invention, there is provided an EPB serving as an electrical parking brake in which a gear wheel and an external ring gear are arranged parallel to a driving gear rotating through a motor serving as the power source on a side surface, and fixed and output sun gears generating output torque are arranged to penetrate the external ring gear in a shaft direction via an internal ring gear and a planetary gear being in inner contact with the external ring gear, an overall length of a single body type housing with the motor is determined only by diameters of the driving gear, the gear wheel, and the external ring gear. Therefore, a power assembly converting the power of the motor driven by an ECU into the output torque is downsized so that a caliper mounted on a wheel presses a wheel disk.

Abstract: A braking system allows for smooth and accurate stopping of a camera dolly operating on tracks. A pair of caliper brake modules attached to the dolly frame are sized so that they fit over and at least partially surrounds the track. When the caliper brakes are activated, brake pads are moved towards the surrounded track squeezing it and providing a significant braking force. This permits the dolly to be smoothly brought to a stop with no possibility of the dolly wheel locking and skidding. The braking system can be temporarily attached to the dolly by a removable fastener system, or it can be permanently built into the dolly. A master hydraulic cylinder with a conveniently placed actuating lever is connected to the brake caliper modules by hydraulic lines so that slave hydraulic cylinders can apply the brakes in response to the actuating lever.

Abstract: Engaging grooves 8e extending in the cylinder axial direction and circumferential grooves 8f formed in a cylinder axial direction middle portion of the engaging grooves 8 are formed on a bottom side of a cylinder hole 8. Engaging rib 12b engaging with the engaging groove 8e and engaging rib 16d which engages with the engaging groove 8e and fits to the circumferential groove 8f are formed on a fixed side cam plate 12 and a housing, respectively. A bleeder hole 8g which penetrates communicates with the engaging grooves 8e and circumferential grooves 8f of the cylinder hole 8 is drilled in a caliper body 2. Communication holes 16h which allow communication between the inside and outside of the housing 16 is formed at a bottom side of the cylinder hole 8 rather than the engaging rib 16f of the housing.

Abstract: A disc brake rotor comprises an internally disposed splined surface defining a circular opening and including one or more axially disposed internal splines that are adapted to be received on external splines of a splined structure of a wheel hub, the surface including a non-continuity such as a cut-away portion of the surface into which independent splines are selectively actuable to align with the internal splines as a part of the surface to allow the rotor to be connected to or released from the hub without using any tools or the like. Preferably, the independent splines are finger actuable, and provide through a workpiece comprising a locking hammer of locking foot.

Abstract: A wheel assembly for a motorcycle provides two wheel and hub assemblies which are attached together along the outer rim of the mated and aligned hubs, providing a space between the two hubs along the axle for insertion of a brake rotor and brake mechanism within the wheel assembly while also providing the brake fluid flow through axle, partially concealing the brake and rotor within the wheel assembly instead of having the brake rotor and mechanism on the outside of a motorcycle wheel.

Abstract: A vehicle braking system that includes an interior space for accommodating a plurality of rotational friction plates and a plurality of fixed friction plates. The interior spaced is formed by a brake housing and a wheel hub, and lubrication oil for lubricating the plurality of rotational friction plates and the plurality of fixed friction plates is contained within the interior space. The brake housing includes a projection, or projection portion, which projects closer to center of an axle, along a longitudinal axis of the axle, than innermost surfaces of the rear wheels. In one arrangement, the projecting portion is located below the axle. In addition, one or more cooling fins can be provided on a surface of the projecting portion. Furthermore, in some arrangements, a space within the projecting portion projects closer to center of an axle, along a longitudinal axis of the axle, than innermost surfaces of the rear wheels.

Abstract: There is provided a vehicular air brake system, comprising: a vehicle, a wheel rotatably coupled to the vehicle, an air brake configured for engaging the wheel to effect braking of the wheel, a pressure vessel configured for containing pressurized air, wherein the pressure vessel is fluidly coupled to the air brake and is configured to supply pressurized air to the air brake to bias the air brake to a position wherein the air brake is disengaged from the wheel, and a brake actuator coupled to the brake and configured to apply a force to the air brake to effect engagement of the air brake to the wheel in response to an application of force to the brake actuator.

Abstract: A wheel hub assembly is fitted to a vehicle axle via a wheel bearing mounted on the axle. The assembly includes a hub mountable on the wheel bearing and rotatable relative to the vehicle axle and fastening members to releasably secure the hub relative to the wheel bearing. The hub can be removed without removing the wheel bearing.

Abstract: A hub and extension arrangement for an axle supporting dual wheels includes an axle supporting an inboard wheel and an outboard wheel and a hub supported by the axle and including a first mounting portion. An extension is supported by the axle and includes a third mounting portion and an arm attached to the inboard wheel and the outboard wheel. A rotor is supported by the axle and includes a braking portion and a second mounting portion. The second mounting portion is disposed between, and attached to, the first mounting portion and the third mounting portion to allow for servicing of the rotor without removal of the axle from the hub.

Abstract: A disc brake which is particularly designed for arcuate travel of less than 360 degrees has sector shaped segments, i.e. segments which are not complete circles and which are interleaved into a disc pack of multiple layers, wherein some layers of the disc pack each consist of a single disc segment which is less than a complete circle. Some segments are rotatable about an axis and others are stationary and have friction brake material carried on them at a position remote from the axis of rotation.

Abstract: An actuating device has an electric motor actuator, at least one output shaft coupled to at least one positioning element and a braking to stop device coupled with the electric motor actuator on the input side and with the output shaft on the output side or includes the output shaft. The braking to stop device has a brake body coupled with the output shaft and is arranged such that it is axially displaceable. The braking to stop device is constructed such that it makes it possible to convert a rotational motion on the input side into the axial lifting motion of the braking body for the displacement thereof from a braking position or positioning the braking body in a braking position. The braking to stop device is also constructed in such a way that it transmits the rotational motion on the input side to the braking body.

Abstract: This invention relates to gravity reactive braking systems. According to the invention there is provided a brake system to control speed in a forward direction for descending inclined surfaces and a brake system for controlling rollback when ascending an inclined surface. The speed pacer braking assembly includes a downhill activator for selectively engaging a disc brake system when a predetermined inclined is reach. The anti-rollback assembly comprises a pair of graded brake cam structures operatively disposed adjacent wheels wherein the natural pull of gravity and the configuration of the cams operate to allow passage of wheels in both directions when on flat surfaces and in only a single direction when on an incline. When on an incline, gravity operates to dispose cams relative to the wheels such that rotation of wheels in one direction is hindered by a thickening of cam body caused by rotation of cam about its axis.

Abstract: A friction disc (16) for a torque and/or rotational control apparatus includes elongated and shortened fins (42, 43) upstanding between and equally circumferentially spaced intermediate first and second component discs (40, 41). The fins (42, 43) are free of circumferential interconnections to allow air to radially pass freely between the fins (42, 43). The fins (42, 43) extend in non-radial directions between the first and second component discs (40, 41). A mounting ring (48) is integrally formed with the elongated fins (42) intermediate and axially spaced from each component disc (40, 41) and radially inward of the inner edges (46) of the component discs (40, 41). The elongated fins (42) each includes a first elongated portion (42a) and a second shortened portion (42b) extending at an obtuse angle therefrom and on the mounting ring (48) radially inside of the inner edges (46). Windows (74) are formed in the mounting ring (48) radially inside of the component discs (40, 41) and of the elongated fins (42).

Abstract: An apparatus is provided for actuating a bicycle hub brake of the type having a fastening bracket adapted to be nonrotatably mounted relative to a bicycle frame, a brake drum, and a brake mechanism adapted to apply a braking force to the brake drum, wherein the brake drum rotates integrally with a bicycle hub around a hub axle. The apparatus comprises an actuating member and a rotating member. The actuating member is structured to be movably mounted relative to the fastening bracket for actuating the brake mechanism, and the rotating member is structured to be rotatably mounted relative to the fastening bracket independently of the actuating member. The rotating member includes an actuating member moving unit for moving the actuating member. The rotating member also includes a cable winding surface to wind a brake actuating cable thereon.

Abstract: A disc brake which is particularly designed for arcuate travel of less than 360 degrees has pie shaped segments, i.e. segments which are not complete circles which are interleaved. Some segments are rotatable about an axis and others are stationary and have friction brake material carried on them at a position remote from the axis of rotation.

Abstract: A luggage has a case with a plurality of wheels on a bottom side thereof. A brake apparatus is provided in the case to brake the wheels. A switch is provided on the case for manipulation. A linkage device is provided in the case to connect the switch and the brake apparatus, such that activating the switch can operate the brake apparatus.

Abstract: An apparatus for fixing a bicycle disk brake rotor a bicycle wheel hub comprises an adapter and a rotor retaining member. The adapter is structured to be nonrotatably coupled to the bicycle wheel hub and to nonrotatably support a disk brake rotor. The adapter includes at least one insertion opening. The rotor retaining member has a latching member structured to be inserted into the insertion opening in the adapter to retain the disk brake rotor to the adapter.

Abstract: A bicycle hub comprises a hub shaft structured to be rotatably mounted to a bicycle frame, a hub shell rotatably supported relative to the hub shaft, and a brake force control mechanism housed by the hub shell. The brake force control mechanism includes a brake force adjusting mechanism that can be accessed for adjustment while the brake force control mechanism is housed within the hub shell.

Abstract: A brakable wheel hub device includes a wheel hub shell having a first surrounding threaded portion and a disk securing portion spaced apart from each other to define a disk mounting space for receiving a brake disk. The disk securing portion has a plurality of axially extending insert holes and engaging holes angularly displaced from and disposed alternately with one another. A positioning ring has a plurality of axially extending protrusions and brake stabilizing members angularly displaced from and disposed alternately with one another so as to pass through the brake disk for insertion into the insert and engaging holes, respectively. A surrounding locking member has a second surrounding threaded portion threadedly engaging the first surrounding threaded portion, and an abutting portion abutting against the positioning ring.

Abstract: A bicycle hub brake component is provided for a bicycle hub brake that includes a fastening bracket adapted to be nonrotatably mounted relative to the bicycle frame, a brake drum adapted to rotate integrally with the hub relative to the fastening bracket, and a brake mechanism adapted to apply a braking force to the brake drum. The component comprises an actuating arm adapted to be movably mounted to the fastening bracket for actuating the brake mechanism, and an inner mounting portion for moving the actuating arm. The inner mounting portion comprises an arm body, a retaining portion disposed on the arm body for mounting the arm body to the actuating arm so that the inner mounting portion moves relative to the actuating arm, and an inner detaining portion disposed on the arm body for detaining an inner cable of a brake cable.

Abstract: A braking actuator for an ergonomic support is connected thereto by a Bowden cable. The actuator has a housing with pin slots, friction surfaces and a mount for a disk axle. A disk has frictional surfaces, holes with pin load edges, a Bowden cable wire seat that holds the Bowden cable end and an axle that is supported by the mount in the housing. The friction surfaces of the disk and housing engage each other to brake the actuator and the ergonomic support. A lever having pins is disposed on the housing such that the pins extend through the pin slots to engage the holes in the disk. Turning the lever disengages the friction surfaces and rotates the disk, thereby moving the ergonomic support. Releasing the lever engages the frictional surfaces such that movement of the ergonomic support is braked at a selected position.

Abstract: An anti-theft vehicle system for a vehicle wheel having a rotational axis includes a linear actuator disposed within the vehicle wheel for operatively engaging and disengaging an interior surface of the vehicle wheel to resist and allow rotational movement of the vehicle wheel about the rotational axis. The anti-theft vehicle system further includes a receiver mounted within the vehicle wheel to receive a signal to activate the linear actuator.

Abstract: A wheel bearing of a motor vehicle, with a wheel hub arranged rotatably on a transmission axle via at least one pair of rolling bearings and having a flanged surface for at least one running wheel. A brake disc is connected to the wheel hub. The wheel hub is of two-part or multi-part design and a first wheel-hub part is connected to a first rolling bearing and/or to a second rolling bearing and a second wheel-hub part is connected to the brake disc.

Abstract: A brakable wheel hub device includes a hub shell adapted to be rotatably mounted on an axle, and having a disk securing portion which has an internally threaded section and a plurality of insert holes at a right end thereof that contacts a brake disk. A positioning ring is disposed outboard to the brake disk, and has a plurality of axially extending protrusions which pass through the brake disk and which are fitted into the insert holes so as to place the brake disk in a spline engagement with the hub shell. A surrounding locking member has an insert segment with an externally threaded section to threadedly engage the internally threaded section through the brake disk, and an abutting segment to abut against the positioning ring, thereby securing the brake disk relative to the hub shell.

Abstract: A brakable wheel hub device includes a hub shell adapted to be rotatably mounted on an axle, and having a disk securing portion which has an internally threaded section and a plurality of insert holes at a right end thereof that confronts a brake disk. A positioning ring is disposed outboard to the brake disk, and has a plurality of axially extending protrusions which pass through the brake disk and which are fitted into the insert holes so as to place the brake disk in a spline engagement with the hub shell. A surrounding locking member has an insert segment with an externally threaded section to threadedly engage the internally threaded section through the brake disk, and an abutting segment to abut against the positioning ring, thereby securing the brake disk relative to the hub shell.

Abstract: The invention relates to a brake disc for a disc brake, in particular in motor vehicles. Said brake disc comprises a friction ring (12) and a pot-shaped supporting part (14), the friction ring consisting of several ring segments (18), which adjoin one another in a circumferential direction. To provide a construction that can be commercially produced in a cost-effective manner and that is not prone to warping, the ring segments are provided with semi-circular recesses (18a), which encompass retaining bolts (16) that extend radially. The retaining bolts are fixed in circumferential sections of the supporting part and support the ring segments by means of a positive fit in a centrifugal direction. The retaining bolts are preferably configured in a tubular manner.

Abstract: In a composite disc for heavy-vehicle disc brakes, an annular braking band comprises at least two portions which are divided along at least one axial separation plane defining, on these portions, respective pairs of flat surfaces which can be arranged face to face in pairs. Radially-oriented, calibrated, semicylindrical cavities are formed in the flat coupling surfaces in order to define cylindrical seats for housing corresponding calibrated locating pins after the assembly of the portions of the band. This solution ensures precise axial alignment between the braking surfaces of the portions of the band.