Patent ID: 6536267
Filing Date: 2003-03-25
Classification: B62D,G01D

Abstract:
An angular position sensor unit, comprising an encoder disc, a hub with a flange, and a retainer, whereinthe hub is adapted for connection to a rotary element on which a measurement of an angle of rotation is to be performed, the encoder disc comprises a plastic material with a thickness between 0.1 and 1.0 mm and a planarity of <0.2 mm, the encoder disc has a central opening adapted to be engaged by the flange, with at least three punched slots extending symmetrically in radial directions from the central opening; the flange has ridges positioned and contoured to match the at least three punched slots; the encoder disc is held in position on the hub in a form-fitting, positive manner by means of said ridges and slots and is axially locked in place by the retainer.