In this paper the effects of thermally induced geometry distortions on load distribution and transmission error have been analyzed.

Higher Quality Internal Gears

The most important consideration in deciding whether to rework or scrap and re-make a nonconforming part is functionality. Can the part be made to ...

Once you accept that “stuff” happens in even the best of machine shops, you can begin to assess where the problems are likely to occur and start th...

Press quenching is designed to harden steel gears while minimizing distortion, and the process is especially applied for hardening large diameter thin-wall gears, face gears and bevel gears. The dimensional control aims at maintaining flatness, out-of-round, straightness and consistency of radial size. The press quench tooling and the process design have been mainly experience-based, using a trial and error approach for implementation of new processes, new gear materials and gear configurations.

My consulting practice covers a very wide range of products — from 4-inch circular pitch mill stands to 180-NDP handheld medical devices — I see th...

This paper presents a new approach to repair industrial gears by showing a case study where pressure angle modification is also considered, differently from the past repairing procedures that dealt only with the modification of the profile shift coefficient. A computer program has been developed to automatically determine the repair alternatives under two goals: minimize the stock removal or maximize gear tooth strength.

[starbox] In writing about unforeseen consequences there is a risk of inspiring such conservatism in design that the resulting product is no lon...