Calibration procedure of radial composite testing for a direct estimation of gear runout deviation

Abstract The classic radial composite testing procedure of the workpiece gear includes a functional test using an expensive master gear. One of the results of this test is the runout deviation of the entirety of the geared workpiece surface. Nevertheless, any imperfectness of the master gear influences all results. This paper presents a reversal method for calibration, based on the rosette method, which eliminates the impact of runout deviations of the master gear. The major benefits of the developed calibration method are that the geometric gear quantities runout and dimension over balls can be determined at an enhanced accuracy, level based on a simple functional test and much faster than by usual tactile measurements. Another advantage is that accuracy requirements of the master gear and thus the costs can be reduced.