The invention relates to a brake shoe for a drum brake system, the brake shoe having a length configured to extend in a circumferential direction of a brake drum of the drum brake system, and a width configured to extend in an axial direction of the brake drum, wherein the brake shoe has spatially varying thermal properties along its length, in particular a change in heat capacity and/or a change in thermal expansion coefficient and/or a change in thermal conductivity. The invention also relates to a drum brake system having a brake shoe of the above-mentioned type.

An electronic parking brake device including: a plate part having a brake shoe rotatably mounted thereon; a housing part mounted on the plate part and configured to guide hydraulic pressure; a motor part mounted on the housing part, and driven when power is applied thereto; a piston part mounted on the housing part, and moved by hydraulic pressure so as to operate the brake shoe; and an operation part embedded in the housing part, disposed between the piston parts, and driven by the motor part so as to push the piston parts.

A brake device relates to vehicle production and can be used in a mechanical brake system. The brake device is designed to prevent emission of harmful substances into the atmosphere/environment due to sliding friction. The brake device for slowing vehicle movement comprises a brake disk which is affixed to a wheel axle, and a housing with transverse guides which is affixed to a support hub, at least one slide and braking element being installed on the transverse guides so as to interact with the brake disk. The braking element is designed as a roller bearing enclosing the brake disk, with radially oriented resilient elements affixed to the brake disk, the other ends of the elastic elements adjoining an inner surface of an inner ring of the aforementioned roller bearing with a running clearance or without a clearance.

The present disclosure relates to a drum brake. The drum brake includes a bolt screw being rotated in conjunction with drive of a first motor, a nut piston being combined by a bolt-nut fastening with a circumference of the bolt screw and being moved toward a direction in which the nut piston presses against a shoe, in conjunction of the rotation of the bolt screw, and a press nut being combined by the bolt-nut fastening with a circumference of the nut piston, being moved toward an axial direction in conjunction with drive of a second motor, being brought into contact with the bolt screw, and thus preventing the nut piston from being pushed due to a reaction force of the shoe.

A cup and seal system for trailer brake assemblies that can attach and fit inside a trailer brake at the base of an axle spindle that will catch and contain any leaked lubricants from a seal seepage or seal blowout failure. The accompanying seal is configured with the specs of an ordinary seal with an added extended lip that will fit inside the cup reservoir without friction resulting in a fail-safe system for trailers that are in-between bearing and brake maintenance services. Cups and Seals may be configured to fit different brake types and sizes, drum sizes, and spindle configurations to direct, catch and possibly expel any lubricant that would diminish the performance and/or stopping power of the trailer brake.

In an electric parking brake device configured in such a way that a parking brake state resulting from pulling of a brake cable is released by loosening the brake cable, the brake cable is formed by twisting together a plurality of wires in such a way as to generate a twisting force in a fixed direction when pulled, and the direction in which the twisting force generated by the brake cable in a pulled state acts on a screw shaft is set to be the same direction as the direction in which a nut is rotated to loosen the brake cable. This makes it possible to reduce an operating sound and to reduce wear of members constituting a rotation restricting device.

The invention relates to an electrically drivable steering axle (10) having an axle housing (11), an electric motor (12), a transmission (13), a differential (14) with a first output shaft (18) and a second output shaft (18′), a first wheel head (15), a second wheel head (16) and a steering linkage (17, 17′, 17″). The electric motor (12) is drive-connected to the first wheel head (15) and to the second wheel head (16) via the transmission (13) and the differential (14). The steering axle (10) according to the invention is distinguished by the fact that the electric motor (12), the transmission (13), and the differential (14) are arranged coaxially with the first output shaft (18) and the second output shaft (18′). The invention additionally relates to a corresponding vehicle.

The invention relates to a drum brake assembly for braking a wheel a motor vehicle that rotates about a rotation axis, with: a brake drum having a back wall section extending at an angle to the rotation axis and a circumferential wall section, at least one brake shoe assembly,
wherein each of the brake shoe assembly and brake drum has a contact portion for contacting the respective other of the brake shoe assembly and brake drum to generate a braking force; and
wherein the brake shoe assembly is configured to be coupled to a rotatable axle component of the motor vehicle to rotate relative to the brake drum about the rotation axis.

A method for determining an operating variable of a drum brake comprises actuating the brake in at least one of: a first wheel speed range and a second wheel speed range. The operating variable is calculated based on bearing force of a leading brake shoe and the further bearing force of a trailing brake shoe when in the first wheel speed range. The operating variable is calculated when in the second wheel speed range based on a current actuator position and an actuator contact position, in which brake shoes of the drum brake come into engagement with a drum of the drum brake.

A drum brake apparatus for a vehicle may include: a cylinder device configured to apply a braking force to a shoe; a clip part extended from the cylinder device toward the shoe, and elastically contacting the shoe; a cylinder coupling part coupling the clip part to the cylinder device; and a shoe assembling part fastening the clip part to the shoe.