CALCULATION OF INDIRECTLY MEASURED RUNOUT OF BEVEL GEARS

Anke Guenther

Abstract

The classic (direct) runout measurement is a function oriented all-over inspection of a bevel gear. Its result is one of the criteria to classify gears in standardised accuracy grades (former quality groups). For several reasons, this direct method is rarely applied for bevel gear inspections, carried out with coordinatemeasuring machines (CMM). Instead, special evaluations based on pitch measurements of both flanks (coast and drive) are commonly used. These calculations relate to much less flank information than the direct measurement and include,depending on the algorithm, several risks. This paper presents an improved approach for this evaluation and compares theoretical and experimental runout results carried out with several CMMs.

Keywords

bevel gear inspection, runout, CMM

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IMEKO-TC14-2013-86.pdf

DOI

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IMEKO TC

TC14 - Measurement of Geometrical Quantities

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