A brake caliper according to this disclosure is, for example, equipped with: a body having a pair of side walls arranged with a gap therebetween, a peripheral wall running between the pair of side walls, wherein the pair of side walls and the peripheral wall enclose the peripheral edge portion of a disk rotor from the outside of the disk rotor in the radial direction; brake pads positioned between the side walls and the disk rotor; pistons that are supported by the side walls and that press the brake pads toward the side surfaces of the disk rotor by means of applied hydraulic pressure; and a shaft that supports the brake pads and passes through an opening provided in the side walls. The opening includes a retaining part that retains the shaft in the circumferential direction at two contact points separated from each other along the edge of the opening.

A one-way clutch includes a rotating body, an outer ring arranged on an outer periphery of the rotating body, a roller, a biasing member, and a recess portion. The outer ring includes an indent portion. A wedge-shaped space is formed between the indent portion and an outer peripheral surface of the rotating body. The roller is disposed in the wedge-shaped space. The biasing member biases the roller to one side of the wedge-shaped space. The outer ring has a protrusion at a position corresponding to a radially outer side of the indent portion. The recess portion is formed continuously with the side surface in a circumferential direction of the protrusion on the outer peripheral surface of the outer ring.

A brake rotor has a circumferential brake track disposed about an axis of rotation of the brake rotor. The rotor has an outer peripheral edge circumferentially around the brake rotor. The rotor has two surfaces that face axially outward away from one another and that are on axially opposed sides of the brake rotor. The two surfaces define a thickness therebetween. The rotor has an edge surface facing radially outward on the outer peripheral edge. The rotor has a transition between each of the two surfaces and the edge surface. At least a portion of the edge surface is not perpendicular to the two surfaces in an axial direction.

In order to achieve lightness and improve hardness of a brake disk, and minimize weight and improve productivity through an improvement of a coupling structure of a disk plate and a hub, provided is a method of manufacturing a brake disk including a disk plate, which provides a friction surface and is formed with a hole at a center, and a hub, which is coupled to the hole formed at the center of the disk plate, the method including: preparing a disk plate; preparing a hub in the form of a flat plate; positioning the hub in the form of the flat plate on one surface of the disk plate; and bonding the disk plate and the hub by an interference fit.

An inner disc carrier (LT) for a wet-type friction clutch (K0) may have a driving toothing including ridges (S, SX) and grooves (N) for the form-locking accommodation of discs (L) of the friction clutch (K0). Each of a first group of the ridges (S) has a first opening (A1) produced in a chip-less shaping process and a section (ST) extending radially inwardly at the first opening (A1) and created during production of the first opening (A1). Hydraulic fluid supplied radially from inside the inner disc carrier (LT) from a first axial position is guided through the first openings (A1) to the discs (L). Hydraulic fluid supplied radially from inside the inner disk carrier (LT) from a second axial position is guided past the discs (L). The sections (ST) of the ridges (S) act as a damming contour for hydraulic fluid supplied radially from the second axial position.

A device that employs shear forces to transmit energy includes an outer housing assembly, a disk, and a reservoir with a working fluid. The disk is received in and rotatable relative to the outer housing assembly. A working cavity is formed between a rotor portion of the disk and the outer housing assembly into which the working fluid is received to create shear forces. A plurality of flow altering structures are disposed on the outer housing assembly and are configured to reduce a thickness of a boundary layer of the working fluid in the working cavity in areas that are local to the flow altering structures.

The present disclosure provides a fibrous preform, comprising an annulus having at least one of an outer diameter portion or an inner diameter portion, the outer diameter portion extending radially inward from an outer diameter of the fibrous preform and the inner diameter portion extending radially outward from an inner diameter of the fibrous preform. In various embodiments, the fibrous preform further comprises a medial diameter portion disposed between the outer diameter and the inner diameter, wherein the medial diameter portion comprises a first needling profile, and the at least one of the outer diameter portion or the inner diameter portion comprises a second needling profile. In various embodiments, the first needling profile is less than the second needling profile.

In order for a carrier body, which has a friction pad carrier plate (10) and at least one first absorber mass (14) rigidly connected to the friction pad carrier plate, to be further improved in such a way that the rigid connection between friction pad carrier plate and the first absorber mass is made more robust, provision is made for a first pin-like projection (18) of the first absorber mass (14) to be inserted into the first hole of the friction pad carrier plate (10) such that the head (28) of the first pin-like projection (18) protrudes out of the first hole and bears partially against a first chamfer (26) in the region of a first edge (22) of the first hole.

To provide a rotating member that allows formation of protrusions to be dug into an opposite surface with a simple configuration, and that can prevent a direction-dependent reduction of anti-slip effect and provide sufficient slip prevention in the direction of torque as well as in the radial direction, and a method of forming this rotating member. The rotating member has a boss and an anti-slip surface on at least one of both axial end faces of the boss. The anti-slip surface includes a plurality of crater-like depressions each having a peripheral protrusion. At least some of the plurality of crater-like depressions are arranged serially to form a plurality of crater chains.

A method for roll-forming disk carriers or the like, which are designed as a pot-shaped sheet metal part having inner and outer teeth, wherein a multitude of cassettes is equidistantly arranged on the circumference of a roll-forming tool, said cassettes having profile rollers arranged in their interior, which roll out the disk carrier to be formed with their outer circumference and thus impart toothing on the disk carrier to be formed, wherein the forming depth of the profile rollers at the disk carrier to be formed is designed in such a way that a narrow, peripheral, self-contained, unformed bridge remains between the inner diameter and the outer diameter of the toothing, wherein the bridge increases the engine-speed strength of the disk carrier as a hoop band cylinder that is integrated into the toothing.