Verfahren zur Herstellung einer magnetischen Kodiereinrichtung

摘要

A magnetization yoke (11) having an exciting coil (12) wound thereon is arranged to hold a magnetic member (1) and a metal ring (2) so that a magnetic flux passes through and magnetizes the magnetic member (1) in the portion held by the magnetization yoke (11) for successively magnetizing the magnetic member (1) along the circumferential direction thereby multipolarly magnetizing the magnetic member (1) in the circumferential direction. Thus, a magnetic encoder having large magnetization strength and a small magnetization pitch error, a wheel bearing employing the same and a method of manufacturing a magnetic encoder can be obtained.