CALIBRATION MANUAL FOR THE ELECTRONIC SYSTEM AND PICKUP OF ANDEROMETERS,

The Anderometer is a rolling bearing vibration tester. The purpose of the instrument is to indicate the RMS vibration level, expressed in Anderons, of a bearing with the outer ring kept in a fixed anular position and the inner ring rotating at 1800 RPM. One Anderon, by definition, corresponds to 60 pi microinchessec. RMS, at a rotational speed of 1800 RPM. The vibration is measured in three frequency bands, nominally 50-300 c low band, 300-1800 c medium band and 1800-10000 c high band. The Anderometer is designed to measure bearings under light axial load, but no radial load. The Anderometer con tains the following main units 1 A mechanical unit consisting of a A spindle to rotate the inner ring of the test bearing. The test bearing is mounted on a mandrel attached to the spindle by a taper. b Spindle drive, consisting of electric motor, pulleys, belts, coupling and jackshaft. c A preloader for application of thrust load to the bearing. d A stand on which the various parts of the instrument are mounted. 2 A velocity sensitive pickup with a stylus contacting the outer ring of the bearing. Author