Rolling bearing unit fitted with a rotational speed detection un

Details Rolling bearing unit fitted with a rotational speed detection un Rolling bearing unit fitted with a rotational speed detection un

1996-10-02

1998-07-14

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

F16C 1908

Patent

active

057793689

ABSTRACT:
A bearing unit with a rotational speed detection unit has a tone wheel which has recesses on its outer peripheral surface and rotates with the magnetic hub and the inner ring, a sensor which has a first stator with notches and a second stator, and a permanent magnet, so that due to the changes in phase of the notches and recesses, the density of the magnetic flux from the permanent magnet is changed, with the magnetic flux led to the second stator and to the hub and inner ring, whereby the number of winding in the coil is increased.

REFERENCES:
patent: 3500091 (1970-03-01), Jones
patent: 5140261 (1992-08-01), Seo et al.
patent: 5296805 (1994-03-01), Clark et al.
patent: 5332964 (1994-07-01), Ouchi

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