A caliper housing having a) an inboard side; b) an outboard side distanced from the inboard side so that a rotor gap is formed between the inboard side and the outboard side; c) a bridge structure which extends from both the inboard side and the outboard side over the rotor gap and connects the inboard side with the outboard side; d) a damper bore passing through the caliper housing from the inboard side into the bridge structure; and e) a mass damper residing within the damper bore; wherein the mass damper is adapted to dampen vibrations occurring during use of the caliper housing.

A friction lining or structure of a vehicle disk brake, including an absorption body with a mass MT, with a rear plate including hammer-head-shaped projections and friction material, which is fastened to the rear plate, for bearing against a friction ring, and wherein the projections engage in abutments of receiving recesses in a holder profile for the tangentially fixed holding and the axially displaceable guidance, and therefore introduction of a tangentially directed circumferential force (Fu, friction force) into the holder profile induces a tensile stress in at least one projection. An absorption system for suppressing undesirable vibrations is arranged on the friction lining.

An apparatus includes a retainer, a rotational portion that is connected to the retainer so that it is able to rotate with respect to the retainer on a rotation axis, a rotor that is connected to the rotational portion for rotation in unison with the rotational portion, and a caliper assembly that is connected to the retainer so that the caliper assembly is able to move according to a line of action. The apparatus also includes a damper assembly that is connected to the retainer and is connected to the caliper assembly to regulate movement of the caliper assembly with respect to the retainer along the line of action, wherein the caliper assembly and the damper assembly cooperate to define a mass damper system that damps vibration of the rotational portion.

A brake shoe for a drum brake includes a brake table and one or more webs supporting the brake table. One end of each web is pivotally coupled to an associated brake spider and another end of each web responds to a force applied by an actuator that causes the brake shoe to move between positions of engagement and disengagement with an associated braking surface. The brake shoe further includes means for damping movement of the brake shoe, during engagement of the brake shoe with the braking surface, for a natural frequency of the brake shoe having an order of at least two and a causing a bending modal shape of the brake shoe. In one embodiment, the damping means includes a damping plate disposed on one side of a web. A spring acts on a side of the plate opposite the web to urge the plate towards the web.

Friction assembly (1) comprising a support plate (2) and at least one brake pad (4), made by co-moulding of at least one heat-resistant resin, the heat-resistant resin of the support plate (2) being partially loaded with non-metallic reinforcement fibres. The support plate (2) identifies one or more accessory-connection seat, made by co-moulding. This invention further relates to a method for the manufacture of a friction assembly and a brake calliper.

A no-back brake system for an actuator includes a ball ramp mechanism. A drag brake assembly is configured to be coupled to a first portion of the ball ramp mechanism. A main brake assembly is configured to be coupled to an actuator and a second portion of the ball ramp mechanism. A limited authority damper assembly is disposed between the drag brake assembly and the main brake assembly. The limited authority damper assembly includes an outer spacing ring configured to be coupled to the drive shaft of the actuator, an inner damping ring coupled to the outer spacing ring and the drag brake assembly, and a first spring disposed between the outer spacing ring and the inner damping ring.

A vibration damping device having improved air-tightness of a chamber holding a rolling mass in an oscillatable manner is provided. A cover member that covers an oscillating range of the rolling mass liquid-tightly or air-tightly comprises a first flange and a second flange. The first flange is pushed onto one of lateral faces of a holding member by a first pushing member fitted onto a rotary member while being prevented to move axially to seal a clearance between the holding member and the first flange by a first sealing member. The second flange is pushed onto the other lateral face of the holding member by a second pushing member fitted onto the rotary member while being prevented to move axially to seal a clearance between the holding member and the second flange by a second sealing member.

A drum brake assembly and method for designing the assembly are provided. The assembly includes a brake spider, a pair of brake shoes pivotally coupled to the brake spider at one end, and a pair of cam followers disposed at opposite ends of the brake shoes. The assembly further includes a camshaft having a shaft disposed along a rotational axis and a cam disposed at one end of the shaft. The cam has an inboard side proximate the shaft, an outboard side distant from the shaft and a cam surface extending between the inboard and outboard sides in engagement with the cam followers. The camshaft further includes a noise reducing mass disposed on the outboard side of the cam. The mass is configured to establish a natural frequency in the cam that differs from a natural frequency of the first and second brake shoes to reduce audible noise.