A brake system comprising: (a) a rotor; and (b) two or more brake assemblies in communication with the rotor, the two or more brake assemblies each including: (i) a caliper; (ii) a piston assembly located within the caliper; and (iii) a motor gear unit in communication with the caliper and configured to move the piston assembly to create a braking force; wherein one or more both of the piston assemblies are moved during a service brake apply or release; and wherein one or both of the piston assemblies are moved during a parking brake apply or release.

A clutch-brake device having an actuating disc, a braking disc, a shaft sleeve, a friction disc, a main coupling body, an intermediate disc, and a cutting tool seat. The coupling and dis-coupling between the main coupling body and a flange of the shaft sleeve is achieved by a cooperative motion between the intermediate disc and the adjacent main coupling body and the cutting tool seat. The clutch-brake device can be used for coupling of the engine and cutting blades of a lawn mower or other applications, and is reliable, of high load capability, stable and durable.

An inner brake motor includes a stator assembly, a rotor assembly connected to the stator assembly, and a magnetic brake assembly connected to the rotor assembly. The rotor assembly has a rotor cover sleeved on the periphery of the stator assembly. The magnetic brake assembly has a movable piece selectively attached to or detached from the rotor assembly. A convex-concave brake structure is formed between the movable piece and the rotor cover. The magnetic brake assembly brakes by frictionally engaging with the rotor assembly through the brake structure, thereby achieving the effect of simplifying the brake structure and reducing the volume of the inner brake motor.

In this disc brake, a pair of brake pads has recesses in the outer peripheral surfaces thereof. A pad spring has a first pressing section extending axially and provided to a base, the first pressing section pressing, toward the trailing side, a first section to be pressed which is provided on the trailing-side side surface of side surfaces which form the recess of a brake padand which are raised outward in the radial direction of a rotor. Also, the pad spring has a second pressing section extending axially and provided to the base, the second pressing sectionpressing radially inward on the bottom surface of the recess of each of the pair of brake pads, the bottom surface being a second section to be pressed which is provided on an outer peripheral section.

A brake motor is provided with a braking mechanism comprising: a motor cover that is provided with an outer wall which is provided such that the inner diameter of an inner peripheral portion thereof increases with proximity to one side in the axial direction from the other side; a drum member that is provided with an outer peripheral portion which is located radially inward of the inner peripheral portion of the outer wall and which faces the inner peripheral portion; and a brake shoe that is mounted on the outer peripheral portion. The inner peripheral portion is provided with a blast-treated portion which is blast-treated upon impact by media which contains large amounts of sharp edges among media which contains large amounts of sharp edges and media which contains large amounts of non-sharp edges.

A brake assembly including a rotor defining an aperture. An axis of rotation of the brake assembly extends through a center of the aperture. A spindle is within the aperture. The spindle is in cooperation with the rotor to restrict independent rotation of the rotor and the spindle about the axis of rotation, restrict axial movement of the rotor relative to the spindle along the axis of rotation, and accommodate radial expansion of the rotor in a plane perpendicular to the axis of rotation.

A brake system comprising: (a) a rotor; and (b) two or more brake assemblies in communication with the rotor, the two or more brake assemblies each including: (i) a caliper; (ii) a piston assembly located within the caliper; and (iii) a motor gear unit in communication with the caliper and configured to move the piston assembly to create a braking force; wherein one or more both of the piston assemblies are moved during a service brake apply or release; and wherein one or both of the piston assemblies are moved during a parking brake apply or release.

A brake piston that includes a body and a cap. The cap is free to move or pivot relative to the body. The body is adapted to generally maintain axial alignment with a piston bore that is adapted to support the brake piston, and the cap is free to move or pivot relative to the body and the piston bore.

An inner brake motor includes a stator assembly, a rotor assembly connected to the stator assembly, and a magnetic brake assembly connected to the rotor assembly. The rotor assembly has a rotor cover sleeved on the periphery of the stator assembly. The magnetic brake assembly has a movable piece selectively attached to or detached from the rotor assembly. A convex-concave brake structure is formed between the movable piece and the rotor cover. The magnetic brake assembly brakes by frictionally engaging with the rotor assembly through the brake structure, thereby achieving the effect of simplifying the brake structure and reducing the volume of the inner brake motor

A disclosed brake lining includes first and second friction member blocks, fastening members, spring members disposed in the fastening members, and a base plate. Each of the first friction member blocks including friction members is elastically fastened to the base plate by two of the fastening members that pass through the spring member and a first back plate. The two of the fastening members are disposed along a circumference of a circle centered around an axle. Each of the second friction member blocks including friction members is elastically fastened to the base plate by three of the fastening members that pass through the spring member and a second back plate. Two of the fastening members lying on opposite ends of each of the second friction member blocks are disposed along a circumference of a circle around the axle.