In a method for producing a brake disc for a motor vehicle, a base disc, which is made of cast iron or aluminum in particular, is provided and equipped with an anti-corrosion layer. The anti-corrosion layer is applied using a wet chemical or galvanic method.

The invention relates to a method of producing a corrosion resistant coating system on a cast iron substrate preferably in the shape of a brake disc, the coating system being completed by a thermally sprayed top layer, characterised in that the cast iron substrate is first subjected to activation by means of a pulsed water jet after completion of machining which increases the surface roughness of the surface thus treated, whereupon the surface is nitrocarburized so that a corresponding diffusion layer is formed on it, whereupon the surface is subjected to an oxidation process in a next step and only then the top layer is applied by thermal spraying.

A caliper brake may include a carrier fixedly installed on a vehicle body and including a guide hole, a guide rod slidably inserted in the guide hole of the carrier, and a caliper housing coupled to the guide rod to be movable together with the guide rod with respect to the carrier. An end portion of the guide rod may be fixedly coupled to a coupling hole formed at the caliper housing, and the guide hole is formed in a protruding part of the carrier protruding toward an inside of the vehicle body.

A boot assembly for a vehicle brake comprises: a flexible boot having an end portion coupled to a housing accommodating at least some components of the vehicle brake including a rotatable body configured to be rotatable by an actuator to move a brake pad and a bearing configured to rotatably support the rotatable body and comprising a non-rotatable bearing race, wherein the boot supports the non-rotatable bearing race; and a boot retainer configured to hold the boot in a fixed position with respect to the housing. Another end portion of the boot is coupled to a linearly movable body configured to be translatable according to rotation of the rotatable body of the vehicle brake to seal an inner bore of the housing. The boot is coupled with one side of the non-rotatable bearing race to limit an axial movement of the non-rotatable bearing race away from the housing.

A compressible filler piece for a brake calliper of a railway vehicle is adapted to at least partially fill out a space needed by a component (409) of the brake calliper for its operation. The filler piece can be applied to the protection of wheel brakes of low floor passenger trains against ice and snow.

Corrosion inhibiting hydraulic fluid additives, kits, and methods are disclosed. The hydraulic fluid additive may be adapted for use with brake fluid in vehicular brake systems. The kits may include an additive, a hydraulic fluid tester, and/or correlated information on test results and hydraulic fluid service actions.

A drainage system for use with a slack adjuster for a railway brake rigging. The drainage system allows fluid and other contaminants to drain from the slack adjuster to prevent the fluid and contaminants from accumulating within the slack adjuster, contacting an operating area of the slack adjuster, and interfering with the operation of the slack adjuster. The slack adjuster includes a main housing portion, a cone nut housing portion enclosing a critical operating area of the slack adjuster, and an overtravel housing portion. The drainage system includes at least one aperture extending through a sidewall portion of the overtravel housing portion. The at least one aperture is configured to allow fluid and/or contaminants to drain there through to reduce exposure of the critical operating area to fluid and/or contaminants. A plug and/or patch can be provided to sealingly and/or removably engage the at least one aperture.

A motor vehicle disc brake lining having friction material fixed on the front side of a back plate, and a resetting spring fixed releasably or non-releasably on the rear side of the back plate with a base and an elastic resetting spring bow. The resetting spring bow sits elastically on an assigned abutment of a holder such that the motor vehicle disc brake lining can be reset to be axially distanced from a brake disc in the released brake state. The friction lining resetting spring has a spring characteristic curve which is additively composed of a plurality of portions including a plurality of quasi-linear straight portions and, interposed in-between, at least one curved transition portion, each having mutually differently defined gradient angles, and among the portions there is at least one portion which is at least partially plastically deformable and serves to automatically allow demand-oriented spring-back based on wear compensation.

A corrosion and wear-resistant brake disc is disclosed. The brake disc comprises a brake body having at least one braking surface, and a corrosion and wear-resistant coating electrodeposited on the braking surface. The corrosion and wear-resistant coating comprises a precipitation-hardened cobalt-phosphorus (CoP) alloy and exhibits a Vickers hardness of from about 900 to about 1050 HV. A method of preparing the brake disc is also disclosed, and comprises electrodepositing a cobalt-phosphorus (CoP) alloy onto at least one braking surface of a disc body to a thickness of at least about 150 m to give a coated disc body. The method also comprises heat treating the coated disc body to precipitation harden the CoP alloy and give the corrosion and wear-resistant coating on the braking surface.

A vented EMA may have a vent that allows gas to pass from into and out of the vented EMA, while preventing liquid from passing into and out of the vented EMA. The vented EMA may have a desiccant material inside the vented EMA that absorbs condensation from within the vented EMA. A vented EMA may also have an air flow path that conducts gas into and out of the vent during operation. As a result, the pressure inside the vented EMA may equalize with the pressure outside the vented EMA, but the deleterious ingress of liquids may be ameliorated.