A coupling assembly arranged between an input shaft and a rotor shaft of a supercharger constructed in accordance to one example of the present disclosure includes a coupling hub and a plurality of pins. The coupling hub can have a series of lobes. Adjacent lobes of the series of lobes can define a plurality of openings. The coupling hub can further define a mounting bore therein. The plurality of pins can have first ends and second ends. The first ends can be correspondingly received by the plurality of openings. The second ends can be received by the rotor shaft. The input shaft can be directly mounted into the mounting bore of the coupling hub for concurrent rotation therewith.

A brake disk for a motor vehicle includes a friction ring and at least one insert portion. The insert portion is located within and arranged coaxially with the friction ring, and is configured so as to possess an annular disk shape and define a plurality of openings. The friction ring is configured such that material of the friction ring fills the plurality of openings.

A method for forming a friction facing comprises placing a bonding powder mix in to a die, and placing a performance powder mix in to the die. Pressing the performance powder mix and the bonding powder mix creates a compact. Sintering the compact forms a friction facing. A clutch disc assembly can be formed. A clutch disc can comprise a mounting hole for securing a friction facing and a backer plate can comprise a pass-through hole. A mounting mechanism joins the mounting hole to the pass-through hole. The mounting mechanism comprises a head-height for a portion of the mounting mechanism that is mounted near the sintered compact. The bonding layer comprises a thickness corresponding to the head-height of the mounting mechanism.

A spreader unit for a drum brake is provided with a readjustment device which ensures that the clearance remains substantially constant even in the case of wear on the brake linings. The readjustment device is arranged between actuating pistons and changes the spacing of the actuating pistons in at least one readjustment step when an actuating travel of the first and second brake shoe holders has exceeded a travel setpoint value. A thermally actuable blocking device mechanically prevents the execution of the readjustment step by the readjustment device at a temperature above a temperature setpoint value.

This disclosure relates to a braking member (1, 2) for a brake system (9) and a method for making it. The braking member (1, 2) comprises at least one friction portion (13, 23) intended to be put into contact with a component (2, 1) of the brake system (9) to produce a braking action due to a friction force. The surface (15, 25) and/or the friction portion (13, 23) is made of a composite material comprising diamond particles (41) and a binder (43).

A hand-held work implement having a tool has a braking device for the tool that includes a brake band which wraps around a brake drum. The brake band and the brake drum undergo friction as they move relative to one another during braking. At least one of the band or drum comprises an austenitic steel, a duplex steel, super duplex steel, a nickel-base alloy or a cobalt-base alloy and has a base body and a marginal layer. The hardness of the marginal layer is approximately 150% to approximately 600% of the hardness of the base body and the carbide proportion in the marginal layer is less than approximately 0.5% by weight. A process for production of the foregoing includes diffusing carbon and/or nitrogen into a marginal layer at a temperature of less than 500 C.

A disk brake piston system having a piston having a metallic outer wall surrounding a central axis, the outer wall being of a material and a thickness which that could be formed by deep drawing; a metallic front wall closing one end of the outer wall, the front wall including a curved area extending toward an interior of the piston, the front wall being of a material and having a thickness that could be formed by deep drawing; and a sleeve positioned at least partially within the piston and configured to interface with an interior side surface of the outer wall such that the sleeve and the piston are restrained from rotating relative to one another around an axis parallel to the central axis, the sleeve comprising a flat or curved internal surface, having a non-circular cross-section, wherein the sleeve comprises a polymeric material.

The invention relates to a friction clutch for a drivetrain of a motor vehicle, having a contact plate that is movable relative to a pressure plate and a clutch disk to engage and disengage the clutch, and having an actuating element that influences the contact plate displacement position and is non-rotatably connected to the contact plate. The actuating element has at least one fluid diverting section which, in an operating state of the clutch, introduces a cooling fluid into the interior of the clutch to cool the contact plate, pressure plate, and/or clutch disk. The actuating element is preferably designed as a rigid component and for a system consisting of such a friction clutch and a transmission bell housing.

A disk brake piston system having a piston having a metallic outer wall surrounding a central axis, the outer wall being of a material and a thickness which that could be formed by deep drawing; a metallic front wall closing one end of the outer wall, the front wall including a curved area extending toward an interior of the piston, the front wall being of a material and having a thickness that could be formed by deep drawing; and a sleeve positioned at least partially within the piston and configured to interface with an interior side surface of the outer wall such that the sleeve and the piston are restrained from rotating relative to one another around an axis parallel to the central axis, the sleeve comprising a flat or curved internal surface, having a non-circular cross-section, wherein the sleeve comprises a polymeric material.

A brake caliper has a caliper body having two side walls delimiting a disc space for accommodating a portion of a brake disc, a connection structure extending straddling the disc space and connecting the side walls to each other, and a pad housing for accommodating at least one pad. A transmission housing is connected to the caliper body so that a front wall of the transmission housing faces the disc space. Thrust members bias the pads against the brake disc along an actuation axis. A control housing supports and houses an electric motor having a drive shaft. and configured to generate and transfer mechanical power to the thrust members. A brake control unit controls the electric motor. The drive shaft protrudes from a front side of the electric motor facing the caliper body. The brake control unit has an electronic board extending in a transverse direction with respect to the actuation axis.