Abstract: A disc brake assembly wear indicator configured to be examined by physical contact, i.e. touch, as well as by eyesight to determine wear of the brake assembly friction couple. Physical markings are provided on the assembly carrier and caliper in locations selected so that the tactile-sensible markings are furthest away when the friction couple is new or unknown and adjacent each other when the friction couple wear is at the minimally acceptable level.

Abstract: A disc brake assembly wear indicator configured to be examined by physical contact, i.e. touch, as well as by eyesight to determine wear of the brake assembly friction couple. Physical markings are provided on the assembly carrier and caliper in locations selected so that the tactile-sensible markings are furthest away when the friction couple is new or unknown and adjacent each other when the friction couple wear is at the minimally acceptable level.

Abstract: For an air-operated disc brake there is provided an internal brake actuator stroke indicator which provides an indication, readily ascertained from outside the brake caliper, of the amount of actuator stroke remaining in a disc brake apparatus before a remaining available actuator stroke limit is reached. In one embodiment, the stroke indicator is a mechanical device, readable through a sight glass in a caliper port, coupled to the brake actuator in a manner which results in rotary motion of the indicator when the brake actuator is displaced through its stroke. Alternatively, the indicator may be a rotary sensor such as an electrical potentiometer coupled to the actuator, where the potentiometer sends an electrical signal indicative of the actuator stroke to an external display, such as a remote actuator stroke display at a vehicle operator's position.

Abstract: An anti-lock braking system sensor arrangement for use with an air disc brake on an axle, particularly a commercial vehicle axle, wherein a wheel speed sensor is located outside a brake rotor envelope and a sensor exciter is located on an inward-extending portion of the axle hub or on the brake rotor, for example, adjacent to the junction of the rotor hat and its friction portion. The sensor exciter may be integrally formed with the axle hub or the rotor, or may be a separate exciter component affixed thereto. The sensor may be located adjacent to the exciter ring by locating the sensor in an axle flange or in a hole in the air disc brake caliper's mounting bracket. By locating the sensor and sensor exciter in this manner, sensor longevity is enhanced by improved cooling, and potential interference between the sensor and the air disc brake components is eliminated.

Abstract: A jack assembly is provided for supporting a brake assembly, particularly an air disc brake caliper. The jack assembly includes a base having a telescoping cylinder that extends therefrom. A support member is secured on an opposite end of the cylinder and includes a securing arrangement for attaching the support member to an associated brake carrier. The support member is rotated about a vertical axis, translated along an horizontal plane provided by the wheels on the base, raised and lowered in height by the selectively extending cylinder, and/or pivoted along a connection with the cylinder. In this manner, the jack assembly is advantageously positioned adjacent the brake assembly, the caliper housing secured to the jack assembly, and then the jack assembly carries the caliper housing to a desired location for service.