A new approach to evaluate materials for open gear

Créé le : 30/06/2015

Octrue M., Nicolle A., Genevier R. - 01/08/2014 - RC - International Gear Conférence - 26-28 août 2014 - Lyon…

In several applications like hoisting equipment, cranes, open gears are used to transmit power at rather low speed (tangential velocity < 1m/s) with lubrication by grease. In consequence those applications have particularities in term of lubricating conditions and friction involved, pairing of material between pinion and gear wheel, lubricant supply, loading cycles and behavior of materials with significant contact pressure due to lower number of cycles.

The comparison of proofed old rating methods (HENRIOT….) with ISO 6336 has shown that ISO is very conservative specifically in the range of limited life.

This has emphasis the need to develop experimental tests, in representative conditions. In order to assess new values of allowable contact-pressure stress numbers, the authors present the concept and the realization of a new test bench in order to satisfy those requirements with the associated procedures of calibration and testing.

Statistical analysis of first experimental results is also developed.

Contact :
Michel Octrue
Tél. (Service Question Réponse) : 
03 44 67 36 82