A composite brake disc connecting assembly and a composite brake disc. The composite brake disc connecting assembly includes a sleeve (1) and a spring member (2); wherein the sleeve (1) includes an upper pressing plate (101), a lower pressing plate (102) and a connecting column (103); a connecting hole (104) is provided at the center of the connecting column (103), and a pair of U-shaped clamping slots are formed between the upper pressing plate (101), the lower pressing plate (102) and the connecting column (103); and the spring member (2) includes a pair of elastic pieces and a connecting bridge (201). The composite brake disc includes a brake disc hat (4), a friction ring (5) and a plurality of composite brake disc connecting assemblies; wherein the brake disc hat (4) is provided with disc hat notches (401) for mounting spring members (2), the friction ring (5) is provided with mounting holes (505) for accommodating connecting columns (103), and the friction ring (5) is connected to the brake disc hat (4) by fasteners (3) inserted onto the connecting columns (103). The composite brake disc has a simple structure, the friction ring (5) can move radially, reducing the deformation amount of the friction ring and preventing brake judder; the whole assembly process is simple, the number of parts is small, the production cost is reduced, and the sources causing variation during the process are reduced.

Various embodiments of aircraft brake assembly structures are provided for achieving noise reduction during braking activity. In certain embodiments of the invention, the actual application of force to the pressure plate is regulated such that a different number of actuator pistons are used during low-energy stops than during high-energy stops. In other embodiments of the invention, the pressure plate or endplate is augmented as to surface area in some instances and as to a taper angle in others, again to achieve a desired increase in effective pressure application during low-energy stops. In other embodiments of the invention, the stator and/or rotor disks are characterized by slots to break up the propagation of noise waves.

The invention relates to an assembled undular brake disc having a hub and having two friction rings which are arranged parallel to and spaced apart from one another, which assembled undular brake disc can withstand high mechanical loads and permits good internal ventilation, wherein an insert element with arms extending radially outward in a stellate manner is arranged between the friction rings.

A brake device of a transmission according to the present invention includes: a rotary-side holding member including an inner peripheral surface having a cylindrical surface shape about an axis extending in a forward/rearward direction and configured to hold a rotary-side friction plate on the inner peripheral surface; a fixed-side holding member including an outer peripheral surface having a cylindrical surface shape about the axis extending in the forward/rearward direction and configured to hold a fixed-side friction plate on the outer peripheral surface; and a lubricating oil supply portion supplying lubricating oil to the fixed-side friction plate and the rotary-side friction plate. The fixed-side holding member is provided in a transmission casing so as not to rotate. The rotary-side holding member is provided in the transmission casing at a radially outer side of the fixed-side holding member and is rotatable about a central axis of the inner peripheral surface.

A friction disk includes a friction disk core having a first surface with multiple channels extending radially across the first surface. The friction disk may further include a first wear liner having two wear liner segments each configured to be coupled to the first surface of the friction disk core to form an annular liner and each including a wear surface, a non-wear surface, and a rib extending from the non-wear surface and configured to be received by one of the multiple channels.

The wet friction member 1 of the invention includes a core plate 2 formed in a flat ring shape, a friction part 3 arranged in a ring shape. The friction part 3 has segment pieces including rectangular shaped G.sub.1 to G.sub.4: G.sub.1 in which a lower right corner of rectangular piece is notched; G.sub.2 in which an upper left corner of rectangular piece is notched; G.sub.3 in which an upper right corner of rectangular piece is notched; G.sub.4 in which a lower left corner of rectangular piece is notched. The friction part 3 has arrangements T.sub.1 and T.sub.2: T.sub.1 in which G.sub.1 and G.sub.2 are arranged in a manner a right side of G.sub.1 and a left side of G.sub.2 face each other; T.sub.2 in which G.sub.3 and G.sub.4 are arranged in a manner a right side of the G.sub.3 and a left side of G.sub.4 face each other.

A brake rotor assembly can include a structural part having a receiving surface and at least one friction surface parts having a contact surface. The friction surface part can be fixably attached to the receiving surface of the structural part such that the contact surface faces away from the receiving surface of the structural surface to form at least part of an annular braking surface arranged concentrically around an axis of rotation of the structural part.

An article includes a structural core, one or more friction pads, and a plurality of elongated fasteners. The structural core includes two core surfaces and a plurality of pockets extending between the core surfaces. Each friction pad includes a pad surface and a friction surface opposite the pad surface. Each pad surface includes a planar pad surface configured to contact the core surface and a plurality of bosses extending from the first planar pad surface and including a bore. Each planar pad surface is at least about 50% of a surface area of the respective first and second pad surfaces. The plurality of bosses engages with the plurality of pockets to position the respective first and second friction pads relative to the structural core. The plurality of elongated fasteners passes through bores of corresponding bosses of friction pads to fasten the friction pads to the structural core.

An article includes a structural core, one or more friction pads, and a plurality of elongated fasteners. The structural core includes two core surfaces and a plurality of pockets extending between the core surfaces. Each friction pad includes a pad surface and a friction surface opposite the pad surface. Each pad surface includes a planar pad surface configured to contact the core surface and a plurality of bosses extending from the first planar pad surface and including a bore. Each planar pad surface is at least about 50% of a surface area of the respective first and second pad surfaces. The plurality of bosses engages with the plurality of pockets to position the respective first and second friction pads relative to the structural core. The plurality of elongated fasteners passes through bores of corresponding bosses of friction pads to fasten the friction pads to the structural core.

A brake pad arrangement for a disc brake of a vehicle braking system includes at least one brake pad carrier plate and at least one friction lining is attached to the at least one brake pad carrier plate, wherein the brake pad carrier plate has at least one fastening section which is configured for fastening the brake pad restoring device, wherein the fastening section has at least one bearing surface for the brake pad restoring device, wherein the at least one bearing surface extends obliquely with respect to the longitudinal axis of the brake pad carrier plate.