A brake actuator (1, 1′) includes a casing (10), an electric motor for providing a driving torque, a cam disc (20) rotatably mounted to the casing (10) and operatively coupled to the electric motor, and a push rod (30) received in the casing (10), and configured to reciprocate in a longitudinal direction (100) between a retracted position (300) and an extended position (400). The push rod (30) and the cam disc (20) are operatively coupled such that a rotational movement of the cam disc (20) causes a linear movement of the push rod. A guiding member (40), in particular a bushing, is mounted to the casing (10), wherein the guiding member (40) guides the movement of the push rod (30) in the longitudinal direction (100).

The disclosure provides a magnetic yoke iron core and a brake including a magnetic yoke iron core, a first movable plate, a plurality of friction disks, at least one second movable plate, a coil, an armature and an elastic part; the first movable plate is located in a first mounting space and close to a first shaft end; a plurality of friction disks are sequentially arranged in the first mounting space along an axial direction of the magnetic yoke iron core and located at a side of the first movable plate close to a second shaft end; the coil is arranged in a second mounting space; the armature is connected with the first movable plate through a connector; the second movable plate is connected with the connector; and the elastic part having a pre-tightening force which enables the armature to be far away from the magnetic yoke iron core.

A floating caliper (2) for a disc brake comprises a first half-caliper (10), which houses a reaction piston (50), a second half-caliper (12), which houses an action piston (90) and locking means for locking the action piston (90) in a preset parking position. The reaction piston (50) is elastically yielding when the braking action acting on it exceeds a preset parking action threshold which corresponds to said parking position wherein the locking means lock the action piston (90).

The invention relates to a motor vehicle actuator, in particular a brake actuator, comprising a housing (3) which consists of a housing container (1) and a housing cover (2) designed as a base support, and in which an electric motor (4) and a transmission (6) coupled to the electric motor via a torque transmitting device (5) are arranged. A retaining frame which can be arranged on the housing cover (2) is provided in order to arrange the electric motor (4) within the housing (3). The invention is characterized in that the holding frame (7) is designed as a damping and/or spring device.

A friction-braking apparatus for a transportation system, having at least one caliper, at least one piston structured and arranged to move the at least one caliper; and at least one brake pad arranged on the at least one caliper. The at least one caliper is structured and arranged to selectively move the at least one brake pad into engagement with at least one rail of the transportation system.

An electromechanical brake is capable of quickly releasing braking force and improving braking performance of a vehicle even when a power source breaks down. The electromechanical brake includes a drive unit including: a nut member which is coupled to a piston and moves in an axial direction to allow the piston to move forward and backward; a spindle which is thread-coupled to the nut member and rotates to move the nut member in the axial direction; an electric motor which provides power for rotating the spindle; a friction member which rotates together with the spindle; and an elastic member which stores elastic energy by being deformed when the friction member rotates during the braking operation, and provides elastic restoring force as backward torque to the spindle through the friction member when the braking operation is released.

A no-back device for resisting feedback torque from an actuator. The no-back device comprises: a flange arranged to receive torque via a shaft; a ratchet assembly comprising a ratchet wheel arranged parallel to the flange; and a braking assembly comprising a resistance wheel, which is sandwiched between the flange and the ratchet wheel, and a braking device, which acts on the resistance wheel to generate a resistive angular force reacting against torque exerted on the resistance wheel. The braking device comprises a follower arranged to roll, under bias from a spring in the braking device, on a cam surface extending around a circumferential perimeter of the resistance wheel. Radial displacement of the follower energizes the spring to generate resistive angular force.

A hydraulic power take-off is provided for use with industrial drives that deliver power to industrial equipment. The hydraulic power take-off has a brake disconnect system that can manually release a brake assembly to allow low-effort rotating of the industrial equipment components to facilitate servicing.

A hydraulic power take-off is provided for use with industrial drives. The hydraulic power take-off has a multiple-force brake system that facilitates actively slowing large inertial loads associated with a heavy rotating mass of an industrial machine. The multiple-force brake system applies different braking forces at different times to control deceleration of the heavy rotating mass in the industrial machine to reduce its stopping time. The multiple-force brake system may include a clutch assembly and a brake assembly. A control system may control the clutch and brake assemblies to provide the multiple-force brake system a relatively higher energy brake engagement state and a relatively lower energy brake engagement. This may include alternating between the higher and lower energy brake engagement states to pulse between high and low pressure braking to facilitate cooling of the system while slowing the large inertial loads.

A parking brake unit of a brake device for braking a wheel includes a first piston having a first engaging part on an inner circumference thereof, the first piston being configured to move in first direction by pressure of the hydraulic fluid supplied to a pressure chamber defined in the back thereof, a first biasing member configured to bias the first piston in second direction, opposite to the first direction, a second piston slidably provided on the inner circumference of the first piston, the second piston having a second engaging part on an outer circumference thereof, and an engaging member configured to cause the first engaging part and the second engaging part to engage with each other, in which the second piston causes a brake lining to move in direction bringing the wheel to be in a braking state, when the first piston moves in the second direction.