Universal roll testing machine for worm and worm gear

Single-flank and double-flank rolling tests are functional verifications to obtain representative parameters of the future gear behavior under operating conditions. The reliability of the results are questioned due to the great number of error sources together with a lack of norms that could provide a standard traceability procedure. Currently, there are not commercial machines that integre both tests. In this work, the development of an equipment which combines single-flank and double-flank rolling tests for worm-worm gear is presented. Consequently, complete studies about principal influences and relation between both types of test can be performed. The results obtained will allow to develop a traceable calibration procedure to stablish measurement uncertainty of gear rolling testers. (C) 2015 The Authors. Published by Elsevier Ltd.