Method and instrument for measuring contact angle of rolling bea

Details Method and instrument for measuring contact angle of rolling bea Method and instrument for measuring contact angle of rolling bea

1992-06-11

1995-06-13

Chilcot, Jr., Richard E.

Measuring and testing

Vibration

By mechanical waves

7386259, G01H 108, G01M 1302, G01N 2900

Patent

active

054232180

ABSTRACT:
While maintaining an outer ring in a fixed state, an inner ring is rotated. Radial vibrations of the outer ring are detected by a vibration pickup, and detection signals are delivered to a frequency converter via an amplifier. The frequency converter determines, by Fourier transformation, the rotation frequency of the inner ring and the revolution frequency of balls. The processor then calculates the contact angle of a rolling bearing on the basis of these rotation frequency and revolution frequency.

REFERENCES:
patent: 3201996 (1965-08-01), Silvia
patent: 3745815 (1973-07-01), Bentone et al.
patent: 4768380 (1988-09-01), Vermeiren et al.
patent: 5263372 (1993-11-01), Matsuzaki et al.
Technische Rundschau, 38/90, pp. 118-121, 123.
Company Leaflet No. MT 55 135 DA of FAG Kugelfischer Georg Scha fer KGaA, D-8720 Schweinfurt, pp. 1 and 14.
IEEE Transactions on Industry Applications, vol. IA-20, No. 3, May/Jun. 1984, pp. 519-527.

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