A brake drum for a drum brake, in particular of a motor vehicle, includes a cylindrical jacket and a support pot which axially adjoins the jacket and which has a hub ring portion to be secured to a wheel hub. The monolithic brake drum is formed at least in part of a fiber-reinforced plastic.

In some examples, a brake disc assembly including a single continuous core portion defining a core of the brake disc assembly; and a friction portion adjacent the core portion. The friction portion defines the friction surface of the brake disc assembly during a braking operation. The friction portion includes a carbon composite material. The core portion includes a core material that is not a carbon composite material, and the core portion is configured as a heat sink for the brake disc assembly for heat generated during the braking operation.

A drum brake includes a brake drum with an attaching region for arranging the brake drum on a vehicle part, such as a wheel hub, and a shell region with a first contact face, and a friction lining with a second contact face which faces toward the shell region, the first and second contact face being curved along or in a radial plane.

A disk rotor of a vehicle brake with improved efficiency in cooling the disk rotor by a synergy effect that comes from ensuring velocity of airflow flowing between cooling fins, ensuring surface areas of the cooling fins, and generating turbulent flow by second fins. A plurality of cooling fins each extending radially from an inner peripheral edge to an outer peripheral edge of a disk rotor are provided inside the disk rotor at intervals in the circumferential direction. Each of the plurality of the cooling fins includes a radial fin extending radially and a second fin spaced apart from the radial fin in the radial direction.

A friction disk may comprise a friction disk core and a wear liner coupled to the friction disk core. A depression may be formed in a surface of the friction disk core. The wear liner may comprise a protrusion extending from a non-wear surface of the wear liner. The protrusion may be positioned within the depression of the friction disk core.

A wet friction member includes a core plate formed in a flat ring shape; and a friction part arranged on a main surface of the core plate. The friction part is formed in such a manner that four kinds of segment pieces, which are a first piece, a second piece, a third piece, and a fourth piece, are repeatedly arranged in this arrangement order in a ring shape via oil grooves.

A friction disk includes a friction disk core having an inner diameter edge, an outer diameter edge, and a first surface with multiple mortises extending radially across the first surface, each of the multiple mortises having a different dimension at the inner diameter edge than at the outer diameter edge. The friction disk further includes a first wear liner having two wear liner segments each including a wear surface and a non-wear surface having a tenon with a complimentary shape to each of the multiple mortises, the tenon being configured to be received by a corresponding mortise of the multiple mortises to couple the wear liner segments to the friction disk core to form an annular liner.

A friction disk includes a friction disk core having an inner diameter edge, an outer diameter edge, and a first surface with multiple mortises extending radially across the first surface. The friction disk further includes a first wear liner having two wear liner segments each including a wear surface and a non-wear surface having a tenon with a complimentary shape to each of the multiple mortises, the tenon of each wear liner segment being configured to be received by a corresponding mortise of the multiple mortises to couple the wear liner segments to the friction disk core to form an annular liner.

A disc brake rotor comprises a hub engagement member, a friction member, a first member, and a second member. The hub engagement member is configured to engage with a hub assembly. The friction member is provided radially outwardly of the hub engagement member with respect to a rotational center axis of the disc brake rotor. The friction member has an axial thickness in an axial direction with respect to the rotational center axis. The first member extends between the hub engagement member and the friction member. The first member includes a recess that has an axial depth in the axial direction. The axial depth is larger than the axial thickness of the friction member. The second member is at least partly provided on the recess without using a screw connection.

A friction part includes a friction surface with a first row of first friction lining pieces arranged radially inwardly, a second row of second friction lining pieces arranged between the first friction lining pieces and a third row of third friction lining pieces, and the third row of third friction lining pieces arranged radially outwardly. Stem grooves are formed between adjacent pairs of the first friction lining pieces. Radially inner branch grooves emerge from the stem grooves and are delimited by the adjacent pairs of the first friction lining pieces and by the second friction lining pieces. Radially outer branch grooves are delimited by the second friction lining pieces and the third friction lining pieces. The radially inner branch grooves and the radially outer branch grooves are connected to each other by offset grooves with a tangential offset between the radially inner branch grooves and the radially outer branch grooves.