A brake caliper arrangement includes a housing, a restoring device, a first brake lining arrangement and a second brake lining arrangement. The first brake lining arrangement and the second brake lining arrangement can be moved relative to one another from a respective starting position with a reduction of an initial spacing which exists between them. The restoring device includes first and second restoring elements. The first restoring element may prestress the first brake lining arrangement into its starting position, while the second restoring element may prestress the second brake lining arrangement into its starting position. The first and/or second restoring elements may be supported, on both sides of a central region of the brake lining arrangement, on the associated brake lining arrangement. The first and/or second restoring elements may be twisted elastically at least in sections in order to generate the prestress.

A brake pad retainer system in a vehicle disc brake comprises a calliper bridge and a calliper housing supporting brake pads on either side of a rotary brake disc, wherein the system is arranged to hold one brake pad in position relative to the calliper bridge. The retainer system comprises a retainer bracket arranged parallel to the brake disc axis and extending across a back plate of the brake pad, and a retaining spring arranged along a radially outer portion of the back plate and extending between the retainer bracket and the back plate. The retainer bracket has an angled surface arranged in contact with a corresponding first angled surface on the retaining spring. The retaining spring has a second angled surface arranged in contact with a corresponding angled surface on the radially outer portion of the back plate. The disclosure also relates to a brake pad.

A spring for a caliper body where the spring may be shaped to be arranged straddling a brake disc for applying an elastic action on at least one brake pad to bias it away from said brake disc. The spring may have a first thrust portion and a second thrust portion adapted to apply an elastic action on at least one brake pad, biasing the brake pad at least away from the brake disc. The spring may also have a first coupling portion adapted to couple the spring with a first side bridge. The spring may also have a second coupling portion adapted to couple the spring with the second side bridge on a tangentially opposite part with respect to the first coupling portion. The spring may also have a backing portion. The spring may also have at least one concave spring portion.

According to an aspect, there is provided an elevator car parking brake comprising a brake carrier having a first plate and a second plate, the plates being spaced from each other and positioned to enable a guide rail to travel within the space between the plates, a caliper movably connected to the brake carrier, brake pads, and an actuator configured to move the brake pads against a guide rail in a braking operation. The elevator car parking brake further comprises at least one first compression spring arranged between the first plate of the brake carrier and a brake pad directly associated with the actuator; and at least one second compression spring arranged between the second plate of the brake carrier and the caliper, the first and second compression springs being configured to keep the brake pads substantially centered with respect to the brake carrier.

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

The application relates to a brake pad assembly (2) for a disk brake system and to a disk brake system. The disk brake system has a brake piston (11) and a caliper finger (20) movably coupled to the brake piston (11). The brake pad assembly (2) comprises a back plate (4) having a front side for facing a brake disk (1) of the disk brake system and a back side (6), a friction layer (3) arranged at the front side of the back plate (4) for contacting a friction surface of the brake disk (1), and a shim (5) arranged on the back side (6) of the back plate (4). The shim (5) comprises a back surface (12) having a top edge (14) and first and second side edges (16, 17). Further, the back surface (12) of the shim (5) contains a pressure region (13) that is configured to be pushed on by the brake piston (11) or by the caliper finger (20) upon brake application. The shim (5) further comprises a plurality of cutouts (19, 19′, 19″) for noise reduction. The plurality of cutouts (19, 19′, 19″) is arranged at least partly between the pressure region (13) of the back surface (12) of the shim (5) and the top edge (14) of the back surface (12) of the shim (5). Additionally or alternatively, the plurality of cutouts (19, 19′, 19″) is arranged at least partly between the pressure region (13) of the back surface (12) of the shim (5) and at least one of the first side edge (16) and the second side edge (17) of the back surface (12) of the shim (5).

A disc brake assembly that includes at least one brake pad retraction spring and a sensor assembly. The brake pad retraction spring extends between a pair of brake pad assemblies. The sensor assembly includes at least one sensor and a wire harness. The sensor is disposed on a brake pad assembly. The wire harness is attached to the brake pad retraction spring.

A disc brake assembly that includes a brake caliper, a retainer strap, and a sensor assembly. The retainer strap is mounted to the brake caliper and extends across a brake pad assembly. The sensor assembly is mounted to the retainer strap and generates a signal indicative of a position of the brake pad assembly.

To reduce abnormal noise production in a friction brake structure, the friction brake structure includes: a brake plate 20 fixed to a rotating shaft 15 of a rotary electric machine 1; a ring-shaped brake shoe 30 disposed facing the brake plate; and a brake shoe support plate 40 which engages with a fixing portion of the rotary electric machine so as to be movable in an axial direction, and which supports the brake shoe and is biased by biasing action so as to bring the brake shoe into sliding contact with the brake plate.

A pad liner for a brake apparatus according to the present disclosure includes a pad liner body disposed between a pair of pin members, a pair of pad liner supports extended and formed from both ends of the pad liner body, respectively, and configured to support a pair of pin members, respectively, a pad liner return part connected to the pad liner body and configured to pressurize a first brake pad, come into contact with the first brake pad, and restore the first brake pad to its original state by providing an elastic restoring force thereof upon release of braking, and a pad liner extension part connected to the pad liner body, configured to come into contact with a second brake pad and pressurize the second brake pad, and disposed on a side lower than the pad liner return part.