Patent ID: 6462450
Filing Date: 2002-10-08
Classification: G01B,G01P,H02K

Abstract:
A pole wheel including a first component that is produced in the form of a hollow magnet body of magnetic powder with thermoplastic binder, the first component having at least one north pole and one south pole in the circumferential direction and surrounding a shaft in a manner free of tensile and compressive stress, and a second component in the form of a retaining part of thermoplastic material seated solidly by press fit on the shaft and axially adjusting the first component, and connecting means for retaining the hollow magnet body axially and in a manner secure against relative rotation on the retaining part, the connecting means being embodied integrally with one of the two components, the improvement wherein the connecting means (5) are embodied integrally with the first component (3), and that the second component (4) has recesses (17) into which the connecting means (5) are formed by injection molding, wherein the second component (4) has a first face end (12) and a second face end (13), with the second face end (13) being positioned adjacent the first component (3), wherein the recesses (17) are in communication with both face ends, and the recesses, where they communicate with the first face end, have a cross section which is larger than their cross section at the second face end.