Rolling bearing unit with rotating speed sensor having an annula

Details Rolling bearing unit with rotating speed sensor having an annula Rolling bearing unit with rotating speed sensor having an annula

1997-08-13

2000-01-04

Snow, Walter E.

Electricity: measuring and testing

Electrical speed measuring

Including speed-related frequency generator

32420725, 384448, G01B 714, G01P 344, G01P 3488, G01P 3487

Patent

active

06011388&

ABSTRACT:
A rolling bearing unit with rotating speed sensor comprising a stationary outer ring member having an outer ring raceway on an inner peripheral face thereof, a rotatable inner ring member having an inner ring raceway on an outer peripheral face thereof, a plurality of rolling elements provided between the outer ring raceway and the inner ring raceway, an annular tone wheel secured to the end portion of the inner ring member and having a cylindrical peripheral portion formed with rotating cutouts circumferentially with a uniform space therebetween, a cover comprising a synthetic resin block and a metal portion and having a cylindrical engaging portion fixed to the open end portion of the outer ring member by engaging the engaging portion with the inner peripheral face of the outer ring member, an annular sensor embedded in the resin block having a peripheral face such that the peripheral face thereof opposes partly the peripheral portion of the tone wheel, and a guide formed on at least one of the tone wheel and the sensor to make the tone wheel and sensor overlapped radially with each other.

REFERENCES:
patent: 5140261 (1992-08-01), Seo et la.
patent: 5296805 (1994-03-01), Clark et al.
patent: 5547290 (1996-08-01), Ouchi et al.
patent: 5670874 (1997-09-01), Miyazahi et al.

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