Robert Bosch Technologies Corporation

Bosch Braking System

P William McCay

Monte J Visser

Stanley J Kulczycki

Jay K Julow

Vince T Mastrangelo

A wheel end hub assembly for a motor vehicle incorporating mechanical retention features. The assembly accurately and positively orients the motor vehicle brake component, such as a disc brake rotor or brake drum with respect to its wheel hub. Accordingly, the machining operations for the brake component braking surfaces can be accurately based from a datum surface of the hub. The assembly incorporates a retention nut threaded onto the wheel mounting bolts which exerts a clamping force on the brake component and further establishes the relative positions of the hub and brake component. The retention nut features a generally conical surface which contacts a generally conical surface of the brake component to establish the radial and rotational relative position of these components.

Vehicle brake and hub attachment system and method

A method of machining a wheel hub and brake component in which the braking friction surface is machined together with the hub bearing journal and seat while the hub and braking component are mounted to a single work holding tool thus enabling both surfaces to be machined relative to one another with close tolerances. In the case of a two-piece wheel hub and rotor assembly, the rotor is mounted to the hub in a manner which establishes the relative position of the rotor relative to the hub prior to machining the hub and rotor.

Growing community of inventors

Ann Arbor, MI, United States of America

P William McCay