Brake pad in an axle disc brake A, the pad comprising a shoe (1) and a lining made from friction material, the lining being defined by a friction face (26), a mounting face (20), an internal edge (23), an external edge (24), a front edge (21), a rear edge (22), the lining being provided with a collection groove (3), open on the friction face (26) and arranged close to the front edge (21), the shoe comprising a hole (17) in fluid communication with the collection groove, this hole being connected to a vacuum source via the communication means (4), the collection groove emerging at one of the edges chosen among the internal and external edges.

An arrangement and method for mounting a brake disc to an axle hub of a vehicle is provided. The arrangement includes wedge-shaped holes at an radially inner region of the brake disc, corresponding wedge-shaped key inserts, a retaining device such as a retaining ring, and mounting devices such as bolts or studs and nuts that pass through the retaining ring and keys to bias the keys against the axle hub. The circumferential sides of the wedge shapes are aligned with radial lines extending from the rotation axis of the axle hub. This arrangement and method provides a simple, robust and easily installed brake disc mounting that minimizes heat transfer between the brake disc and the axle hub and accommodates thermal expansion of the brake disc and the axle hub to minimize thermal expansion-induced stresses to the brake disc.

An arrangement and method for mounting a brake disc to an axle hub of a vehicle is provided. The arrangement includes wedge-shaped holes at an radially inner region of the brake disc, corresponding wedge-shaped key inserts, a retaining device such as a retaining ring, and mounting devices such as bolts or studs and nuts that pass through the retaining ring and keys to bias the keys against the axle hub. The circumferential sides of the wedge shapes are aligned with radial lines extending from the rotation axis of the axle hub. This arrangement and method provides a simple, robust and easily installed brake disc mounting that minimizes heat transfer between the brake disc and the axle hub and accommodates thermal expansion of the brake disc and the axle hub to minimize thermal expansion-induced stresses to the brake disc.

The present invention relates to a drive arrangement having an electrical machine and a gear that are in rotational driving connection with each other while forming at least one torque transmission path, wherein at least one element pair consisting of a torque-transmitting first element and a torque-transmitting second element that are in rotational driving connection with each other via a coupling device is arranged in the torque transmission path. The coupling device is designed as a slip clutch, such that the first and second element can be pivoted relative to each other when a pre-determined torque limit value is exceeded. The present invention additionally relates to components for such a drive arrangement.

A friction material is discloses for a braking pad comprising a binder comprising a mixture of a phenolic resin or a phenol formaldehyde resin and of a thermoplastic. The total amount of said phenolic resin or phenol formaldehyde resin and of said thermoplastic is between 2 and 60% in volume of said friction material. The ratio in volume between phenolic resin or phenol formaldehyde resin and the thermoplastic is from 20 to 80% in volume. Preferably the thermoplastic has a melting temperature between 120 and 350 C. and comprises a polyamide or a thermoplastic polymer with NH bond, either in the backbone or in the pendant group. More preferably the thermoplastic material is chosen in the group constituted by PA4, PA6, PA1, PA11, PA12, PA410, PA610, PA66, PA612.

Various systems, devices, and methods for a vehicle smart brake pad comprising a sensor such as a force sensing device, and a production process thereof. For example, a production process of a vehicle brake pad can include the following steps in time sequence: applying an electrical circuit a support plate; screen printing on the electrical circuit of at least a first electrode; screen printing on the at least first electrode of a sheet of piezoelectric material; screen printing on the sheet of at least a second electrode; applying a friction pad on the support plate; and bulk polarizing the sheet of piezoelectric material by a supply of power to the at least first and second electrodes.

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 wet parking brake device includes a shaft case, a rotary shaft, a plurality of stators, a plurality of brake discs, a piston member, and a pressing mechanism. The wet parking brake device is configured such that the brake discs and the stators come in contact with each other by a pressure from the piston member pressed by the pressing mechanism to thereby generate a braking force against the rotary shaft. The pressing mechanism includes a parking rod. The parking rod includes a rod main body, a turning shaft portion, and a connecting shaft. The shaft case includes an opening and a shaft hole. A length of the parking rod, the diameter of the shaft hole and the diameter of the turning shaft portion are respectively designed such that the turning shaft portion is inserted into the shaft hole when the parking rod is inserted from the opening.

A novel disc brake shim and disc brake that can effectively suppress occurrence of vibration and squeal, are easy to manufacture and have excellent quality stability are provided. The disc brake shim includes a base material layer formed of a metal sheet, and a rubber layer that is laminated and disposed on at least a part of a main surface on one side of the base material layer and contains pores derived from a plurality of hollow microcapsules inside, and the disc brake includes pad materials on both sides in an axial direction of a disc rotor, and shims on opposite sides from the disc rotor, of the pad materials adjacently, wherein each of the shims is the disc brake shim of the present invention.

A method for manufacturing a braking band may include providing a braking band with a base band having an upper face and a lower face, where the base band being is made of titanium or titanium alloy. The method may also include directly depositing a material in particulate form consisting of ceramic and metal and/or intermetallic particles above at least the upper face and/or the lower face so to create an upper coating layer and/or lower coating layer. A braking band for a brake disc may have a base band entirely made of titanium alloy and having an upper face and a lower face, an upper coating layer, and a lower coating layer joined to the base band along the lower face. The upper coating layer and the lower coating layer consist of a mixture of ceramic and metal and/or intermetallic particles.