Non-metallic encoder for an in-bearing active wheel speed sensing system

摘要

An encoder for an active speed sensor includes a non-metallic body embedded with magnetized ferrous particles generating a magnetic field. The encoder is mounted radially between inner and outer races of a wheel bearing and axially between a spaced pair of rollers of the bearing. The body is attached to a press ring that is retained on the inner race by a press fit. A non back-biased sensor extends through the outer ring proximate the body.