Rotational velocity detecting arrangement of the tone wheel on t

Details Rotational velocity detecting arrangement of the tone wheel on t Rotational velocity detecting arrangement of the tone wheel on t

1994-09-06

1998-02-03

O'Shea, Sandra L.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

384448, G01P 344

Patent

active

057148805

ABSTRACT:
A hub unit has a hub with a nut tightened at an axially inner end which is partly projected from the nut. A tone wheel is secured to the axially inner end of the hub. The tone wheel has an outer cylindrical portion provided around the nut and having magnetic properties changing alteratively in a circumferential direction with a uniform interval. An outer ring is provided, which has an axially inner open end. A cover covers the axially inner open end of the outer ring. The hub unit also has a sensor of a passive type supported by the cover and having a detecting portion facing to the outer periphery of the outer cylindrical portion of the tone wheel.

REFERENCES:
patent: 4795278 (1989-01-01), Hayashi
patent: 4797612 (1989-01-01), Nakanishi et al.
patent: 4907445 (1990-03-01), Okumura
patent: 4916390 (1990-04-01), Christoleit et al.
patent: 4969694 (1990-11-01), Caron
patent: 4978234 (1990-12-01), Ouchi
patent: 5131763 (1992-07-01), Caron
patent: 5148104 (1992-09-01), Ishikawa

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