A linear actuation assembly comprising: (a) a differential assembly and (b) a pair of linear actuators in communication with the differential assembly; wherein the pair of linear actuators are movable along an axis so that during movement of each of the pair of linear actuators a pair of brake shoes are moved to create a brake force or moved to release a brake force, and wherein the differential assembly distributes power equally to each of the pair of linear actuators until resistance of one of the brake shoes increases then the differential assembly ceases to provide power to the brake shoe with increased resistance and distributes the power from the brake shoe with increased resistance to a brake shoe of lower resistance until a brake force is created.

A brake system including a motor; a rotary to linear stage mechanism; and a torque locking mechanism. The rotary to linear stage mechanism in communication with the motor. The torque locking mechanism in communication with the motor The torque locking mechanism comprises an electromagnet and a permanent magnet. During a brake apply the motor is adapted to move the rotary to linear stage mechanism so that at least one brake pad or at least one brake shoe is moved against a surface to create a clamp force. The electromagnet and the permanent magnet are adapted to cooperate to maintain the created clamp force.

Disclosed herein is a disc brake system. The disc brake system according to the present embodiment includes a main braking part configured to slide and move a pair of main pads respectively disposed on both side surfaces of a disc in a direction of an axis of the disc and generate a main braking force by friction between the both side surfaces of the disc and the main pads, an auxiliary braking part configured to slide and move an auxiliary pad disposed at a side of an outer circumferential surface of the disc in a radial direction of the disc and generate an auxiliary braking force by friction between the outer circumferential surface of the disc and the auxiliary pad, and a controller configured to activate the main braking part in response to an input value generated based on a pedal force of a brake pedal measured by a sensor.

A friction brake device has a brake rotor that rotates around an axis of rotation, brake pads that can rotate around an axis of autorotation parallel to the axis of rotation, support members that support the brake pads respectively, and pressing devices that press the brake pads against the brake rotor respectively. In the friction brake device, when the brake pads are pressed against the brake rotor, the brake pads revolve around the axis of rotation relatively to the brake rotor while being frictionally engaged with lateral faces of the brake rotor respectively. The support members press the brake pads in a direction perpendicular to the axis of rotation, and frictionally engage outer peripheries of the brake pads with a cylindrical face of the brake rotor respectively. The brake pads auto-rotate around the axis of autorotation upon beginning to be pressed, but come to rest when the pressing force increases.

A floating disc brake assembly having a disc brake rotor secured to a mounting assembly, such as a hat or a hat with a retention ring structured and arranged to fit within retention ring flanges of a plurality of rotor mounting tabs uniformly distributed about the mounting assembly. A method of uniformly transferring braking forces from a rotor of a brake assembly about a wheel hat component of the brake assembly and a kit of parts are also provided

A floating brake rotor and drum assembly comprising a disc brake rotor and a brake drum and a floating connection of the rotor and the drum with a mounting assembly such as a hat or a hub. A retention ring cooperates with retention ring flanges of a plurality of mounting assembly tabs.

A linear actuation assembly comprising: (a) a differential assembly and (b) a pair of linear actuators in communication with the differential assembly; wherein the pair of linear actuators are movable along an axis so that during movement of each of the pair of linear actuators a pair of brake shoes are moved to create a brake force or moved to release a brake force, and wherein the differential assembly distributes power equally to each of the pair of linear actuators until resistance of one of the brake shoes increases then the differential assembly ceases to provide power to the brake shoe with increased resistance and distributes the power from the brake shoe with increased resistance to a brake shoe of lower resistance until a brake force is created.

An electromagnetic braking device includes a brake disk, a fixed disk, an armature, a biasing member for biasing the armature, and a stator for attracting the armature. In a stator magnetic circuit member, a first yoke, a permanent magnet, and a second yoke are arranged in this order from one end to the other end of a U shape. In a rotatable state or a rotation braking state, even when the coil energization is OFF, the rotatable state or the rotation braking state is maintained. When a current of a predetermined magnitude flows through the coil in a first direction in the rotatable state, the state shifts to the rotation braking state, and when a current of a predetermined magnitude flows through the coil in a second direction in the rotation braking state, the state shifts to the rotatable state.

A locking mechanism according to the disclosure may include a lock member having multiple projections, and first and second engaging members that are each pivotable with respect to the lock member. The first engaging member is engageable with the lock member to inhibit relative rotation between the lock member and the engaging members in a first rotation direction, and the second engaging member is engageable with the lock member to inhibit relative rotation between the lock member and the engaging members in a second rotation direction opposite the first rotation direction. The first and second engaging members may be simultaneously engageable with the lock member to provide a locked condition of the locking mechanism in which the first and second engaging members are each engaged with a respective one of the projections.

A rotation braking device includes a cage disposed so as to be movable between an engagement position at which engagement elements are engaged with an inner member and an outer member, and a disengagement position at which the engagement elements are disengaged from the inner member and the outer member; a centering spring rotationally fixed to the cage; an axially movable friction member rotationally fixed to the cage; a separation spring for biasing the friction member in the direction away from an electromagnet via an armature; and a friction surface portion configured to axially receive the biased friction member and to apply a circumferential force to the friction member. The friction member is attracted to the armature when the electromagnet is energized. A surface treatment for reducing friction resistance is applied to at least one of opposed contact surfaces of the friction member and the armature.