Definitions for "BACKING PLATE"
Keywords:  shoes, brake, bushings, cylinder, drum
Steel plate on which wheel cylinders(s), brake shoes and other drum brake parts are mounted.
A plate used as a support for the mold cavity block, guide pins, bushings, etc.
In drum brakes, the heavy steel plate which is bolted to the axle housing or spindle and transmits the reaction of the brake shoes to the vehicle; also provides the mounting for the shoes, wheel cylinder, and associated hardware.
Keywords:  adaptor, chuck, jaw, three, piece
Adaptor piece used with the three jaw chuck system.