A dust retainer for a brake system comprising a retainer receptacle mounted integrally to one or more components of the brake assembly, wherein the retainer receptacle comprises a drum have first and second open ends, one open end being secured to a component of the brake system and the other open end being closed by a dust retainer cap, the drum defining a space within which a brake disk of the brake system is located, in use, wherein removal of the dust retainer cap allows the brake disk to be removed from the open end of the retainer drum, and a removable drawer integrated in the drum. A fastening means to removably secure brake components to each other is also disclosed.

A method of making a brake assembly. The method may include providing a brake pad carrier, an air operated brake actuator suitable for attaching to the brake pad carrier, and a hydraulically operated brake actuator suitable for attaching to the brake pad carrier, and attaching one of the air operated brake actuator and hydraulically operated brake actuator to the brake pad carrier to provide a brake assembly.

The brake disc arrangement (10) comprises a brake disc (20) which extends annularly about an axially extending central axis and defines an inwardly facing circumference comprising a splined portion for transferring torques between the brake disc (20) and a corresponding hub, when the brake disc arrangement (10) is mounted to the hub. The brake disc arrangement further comprises a spring assembly (30) adapted to be axially connected to the corresponding hub. The inwardly facing circumference of the brake disc (20) comprises one or more cavities (24), each cavity (24) being defined by axially opposing lateral walls (26). The spring assembly (30) is partially contained in said one or more cavities (24), such that a portion of the spring assembly (30) may abut each one out of the axially opposing lateral walls (26).

A universal joint assembly includes a yoke including a serration hole to receive an end portion of a steering column and a bolt-hole to receive a bolt which is used to restrict the steering column received in the serration hole, and a misassembly prevention member coupled to the yoke and elastically movable from a first position in which the bolt-hole is at least partially blocked to a second position in which the bolt-hole is opened, thereby preventing a misassembly of the steering column and improving safety and reliability of the universal joint assembly.

Various brake pads with thermoelectric energy harvesters are disclosed. In some embodiments, the brake pad comprising a backplate, a pad of friction material, and a TEG module. The backplate can comprise a through-hole in which elements of the TEG module are positioned.

Motor shaft adapters include a cylindrical shaft sleeve with a tubular body defined between inner and outer cylindrical surfaces, and frame adapters that include a section of structural tubing and flanges having sides aligned to the sides of the structural tubing section and fixed at respective ends of the section of structural tubing into assembly between a motor and gearhead. Key slot apertures are defined by opposing body end-walls of the tubular body and through the inner and outer cylindrical surfaces of the sleeve. A shaft key has outer sidewalls that include opposing outer sleeve aperture sidewall portions that enable the shaft key sidewall portions to fit within and to thereby engage the sleeve via the key slot aperture. The key sidewalls further include a base pair of opposing key seat engagement portions that fit within and engage opposing sidewalls of a key seat aperture defined within a workpiece shaft.

In some examples, a rotor drive key assembly configured to be positioned on a wheel includes an insert and a rotor drive key. The insert is configured to mate with a wheel boss of the wheel and mechanically connect the rotor drive key with the wheel boss. The rotor drive key is configured to mate with the insert such that the insert limits movement of the rotor drive key relative to the wheel boss in at least a radial direction of the wheel. In some examples, the rotor drive key includes a tab having a tab aperture configured to receive a fastener extending in an axial direction of the wheel and engaging the wheel boss.

Method for producing a friction material, including the following steps in sequence: mixing an aluminosilicate source with an alkaline silicate solution to form a geopolymer, adding a friction mix to the geopolymer solution of the previous step to obtain a slurry, casting the slurry in a mold at temperature between room temperature and 120° C. and for between 5 min and 2 h and demolding to obtain a pad, attaching a backplate to the pad, curing for a time between X and Y hours at a temperature of between X and Y. The friction material obtained with the method is for the manufacture of friction layers/blocks for friction elements such as braking elements, including vehicle brake pads or blocks, and/or friction discs.

A yoke installation and removal assisting device includes a structural body, a pair of yoke-receiving channels, a tool-receiving recess, and a pin-receiving channel. The pair of yoke-receiving channels terminally traverses into the structural body at a first end and is used to position a yoke. To prevent slipping during operation, a safety pin is preferably inserted through the pin-receiving channel and a pair of pin holes of the yoke. The pin-receiving channel laterally traverses into the structural body perpendicular to the pair of yoke-receiving channels and is used to hold the yoke against the structural body. The tool-receiving recess traverses into the structural body at a second end and is used to connect to an air tool or a manual ratchet. By operating the air tool/manual ratchet the yoke positioned within the structural body can be installed/removed.

A brake pad assembly for a bicycle includes a first brake pad, a second brake pad, and a spreader spring. The first brake pad has a first backing plate with a first rotor facing surface, and a first friction pad secured to the rotor facing surface. The second brake pad has a second backing plate with a second rotor facing surface, and a second friction pad secured to the second rotor facing surface and facing the first friction pad. The spreader spring has a first leaf that is fixed to the first brake pad and a second leaf that is fixed to the second brake pad. At least a portion of the first leaf is positioned between the first rotor facing surface and the first friction pad, and at least a portion of the second leaf is positioned between the second rotor facing surface and the second friction pad.