A brake pad apparatus having a conductivity sensor disposed thereon operable to generate conductivity data corresponding to the remaining thickness of the brake pad's friction lining. The conductivity data may be analyzed by a processor to estimate the remaining life of the brake pad for purposes of maintenance, diagnostic, or repair. The conductivity sensor may utilize a conductivity probe that comprises one or more insulation coatings to insulate conductive material from the friction lining. The brake pad apparatus may further comprise a wireless transmitter to transmit data to a processor external to the brake pad apparatus.

A yaw brake apparatus includes a first surface disposed on an end of a yaw piston for a wind turbine, the first surface including a first pattern formed by one or more of a plurality of first recesses and a plurality of first protrusions. The yaw brake apparatus may also include a yaw pad including a second surface structurally configured to engage with the first surface and a third surface opposite the second surface that is structurally configured to engage with a slew ring of the wind turbine, the second surface including a second pattern formed by one or more of a plurality of second recesses and a plurality of second protrusions corresponding to one or more of the plurality of first recesses and the plurality of first protrusions on the first pattern such that the first pattern and second pattern fit together when aligned in a predetermined orientation.

The application relates to a brake pad assembly (2) for a disk brake system. Further, the application relates to a disk brake system. The proposed brake pad assembly (2) comprises a back plate (4) having a front side for facing a brake disk (1) of the disk brake system and a back side (6). The brake pad assembly (2) further comprises a friction layer (3) arranged at the front side of the back plate (4) for contacting a friction surface the brake disk (1). In addition, the brake pad assembly (2) comprises a shim (5, 8, 12). The shim (5, 8, 12) comprises a copper layer (7, 11, 13, 17) for reducing squeal noises. The shim (5, 8, 12) is arranged on the back side (6) of the back plate (4).

A steering shaft for a motor vehicle may include a first shaft part and a second shaft part. The first and second shaft parts may be connected in a way such that torques are transferred. A damping element can be disposed between the first and second shaft parts for damping oscillations and/or vibrations. The damping element may contact a carrier along a contact area. The damping element may be coupled to the carrier at only a portion of the contact area. The carrier may be, for example, the first shaft part, the second shaft part, a sleeve, or a bushing.

A connecting shaft including a first shaft made of metal, a second shaft made of resin, and a collar made of metal including a first fitting portion fitting on an outer peripheral surface of the first shaft and a second fitting portion fitting on an outer peripheral surface of the second shaft. A gap between the outer peripheral surface of the second shaft and an inner peripheral surface of the second fitting portion is filled with an adhesive agent, and the adhesive agent is applied to an outer peripheral surface of the collar to cover an end face of the second fitting portion in an axial direction.

A friction pad includes a fastening surface, a friction surface facing away from the fastening surface, a shape delimited by a peripheral cutting edge, and a base rim extending along the peripheral cutting edge. The base rim is more compressed than a remainder of the friction pad. The reminder of the friction pad has a pad height and the base rim may have a base height that is at least one quarter of the pad height. The base rim may have a base width that is at least as large as the pad height.

A brake assembly includes: a motor rotor; a brake disc fixed on the motor rotor; a friction plate fixed to and surrounding the brake disc; a bearing rotatably sleeved on the motor rotor; an electromagnet assembly fixed on the bearing; a baffle plate fixed to the electromagnet assembly; an armature slidably sleeved on the motor rotor, and located between the baffle plate and the electromagnet assembly; and a spring assembly provided between the armature and the electromagnet assembly. When the electromagnet assembly is de-energized, the armature is pushed by the spring assembly to move in a direction close to the baffle plate, such that the friction plate is clamped by the armature and the baffle plate to realize braking.

A multi-piston-dedicated heat dissipating caliper cover with easy installation includes a caliper cover body, a fixing assembly and at least two first fixing bolts. One side edge of the caliper cover body extends toward a side to form a first arc-shaped side plate, and the other side edge of the caliper cover body extends toward a side to form a second arc-shaped side plate. The fixing assembly includes a bolt fixing sheet and a positioning sheet, one end of the positioning sheet is connected with the bolt fixing sheet through a second fixing bolt, and the other end of the positioning sheet passes through a strip-shaped hole and then is inserted into a slot at a top of a brake caliper. By disposing the heat dissipating silicone sheet, a contact area is increased, which allows the heat generated by the brake caliper to be quickly transferred to the caliper cover.

A wet clutch is a clutch in a fluid setting. Wet clutches are typical in vehicle transmissions, for example. In this disclosure, a chemically-attached (chemisorbed) friction modifier on wet friction material surfaces provides improved performance in general with less dependence on the external parameters such as temperature and pressure. In one embodiment, the chemically-attached friction modifier is trichloro octadecyl silane (TODS).

A balance module 10 for a clutch comprises a first annular piston part 11, a second annular piston part 12, which is arranged opposite the first piston part 11 in the axial direction and spaced therefrom, at least three spring elements 13 operating in the axial direction, which are arranged axially between the first 11 and the second piston part 12, and a sealing element 14 with at least one radially outwardly directed sealing lip 15, which is attached on the first piston part 11. The spring elements 13, the first 11 and the second piston part 12 are connected to one another in a loss-proof manner, in order to form an integral module 10.