Rolling-contact bearing equipped with a built-in device for dete

Bearings – Rotary bearing – Antifriction bearing

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Details

384446, 324174, F16C 1908

Patent

active

056241925

ABSTRACT:
The rolling-contact bearing comprises one outer race 11, two inner races 12,13, two rows of rolling bodies 14 held in cages 15 and a built-in device for detecting the speed of rotation, of the type comprising a sensor means 17 and an encoder means 19 which are located in the annular chamber defined between the inner races 12, 13 and outer race 11 and the rolling bodies 14. The encoder means 19 comprises an active part 20 capable of creating in the sensor means 17 a periodic signal of frequency proportional to the rotational speed of the bearing 1. The encoder means 19 comprises a support part 21 secured to the inner races 12,13 and made of a nonmagnetic material, so that the said support part 21 axially holds the inner races 12,13 against each other before the bearing 1 is mounted in the mechanical assembly for which it is intended.
According to the invention, the encoder axially secures the inner races after the bearing has been assembled and cannot come into contact with the rolling bodies.

REFERENCES:
patent: 4969753 (1990-11-01), Kato et al.
patent: 5121998 (1992-06-01), Bhatia
patent: 5129742 (1992-07-01), Tilch et al.
patent: 5183341 (1993-02-01), Ouchi et al.

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