Magnetic encoder and wheel bearing assembly using the same

Details Magnetic encoder and wheel bearing assembly using the same Magnetic encoder and wheel bearing assembly using the same

2005-02-22

2005-02-22

Footland, Lenard A (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

Reexamination Certificate

active

06857782

ABSTRACT:
To provide a magnetic encoder in which an air gap between it and a magnetic sensor can be increased and the magnetic force generated thereby can be easily quality-controlled, and a wheel bearing assembly having the magnetic encoder, the magnetic encoder20includes a core metal11and an elastic member14integrated with the core metal11in a ring-shaped configuration. The elastic member14is made from an elastic material mixed with a powder of magnetic material and has a plurality of different magnetic poles alternating in a direction circumferentially thereof. The elastic member14also has a Shore hardness of not lower than Hs 90. A wheel bearing assembly is also provided, which makes use of the magnetic encoder20as a component part of a sealing unit5.

REFERENCES:
patent: 6559633 (2003-05-01), Nachtigal et al.
patent: 20020028032 (2002-03-01), Norimatsu

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