Method for determining the friction torque of a test bearing

Measuring and testing – Frictional resistance – coefficient or characteristics

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

G01N 1902

Patent

active

047635088

ABSTRACT:
In a method for determining the friction torque of a test bearing, wherein one race member of the test bearing is rotated at a constant rotational speed, while the other race member is connected via a measuring head to a spring acting as force pickup which generates a signal for a measurement of the friction torque of the test bearing, in order to simultaneously enable in a simple manner a high time resolution and calibratability of the friction torque, it is proposed that the motion of the system comprising measuring head and force pickup be damped as little as possible, that in order to calibrate the entire test device, the test bearing be replaced by an air bearing, that with this air bearing arrangement a signal proportional to the spring deformation and a signal proportional to the measuring head acceleration be generated, that a composite signal be formed from the two signals and the relationship of these two signals be set so that they cancel each other out, and that in the measurement of the friction torque of the test bearing, in which case the relationship of the two signals remains unaltered, the composite signal of the two signals be determined as a measure of the friction torque occurring.

REFERENCES:
patent: 3027749 (1962-04-01), Barnard
patent: 3041867 (1962-07-01), Knudsen
patent: 3116628 (1964-01-01), Gordon
patent: 3225587 (1965-12-01), Gordon
patent: 3685342 (1972-08-01), Gordon
U. Milz, "Measurement of Force and Mass Under Influence of Unwanted Acceltion", VDI-Berichte No. 312, 1978, pp. 135-141.
J. Francz, "Die Messung Kleinster Drehmomente bei Kugellagern und Getrieben", Messtechnische Briefe, HBM, 1967, pp. 30-31.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Method for determining the friction torque of a test bearing does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for determining the friction torque of a test bearing, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for determining the friction torque of a test bearing will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-593294

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.