![]() These formulae only apply to spur gearing without helix angle. Commonly used formulae are described in a simple manner at the end of the book. It was revised as a whole before print and reflects the status quo of standardisation. This book is a compilation of individual documentations, which were compiled over a period of 30 years from the author’s experiences. This book provides an overview of the standards, which is otherwise difficult to obtain. Some, however, do comply with the current state of technology. There is an undeniable diversity of official spline standards and internal company standards, some of which are incomplete and others plainly wrong. Experts in the matter are accordingly few and far between. They are neither addressed during vocational training nor in degree courses. Preface Splines are a difficult technical “marginal area” within drive technology. Self-published Version 22th June 2012 FRENCO GmbH Splines Volume 3 Standards and Calculation 1st Edition 2008 Self-published by Frenco GmbH Frenco GmbH All rights including those of the translation, reprint and reproduction of the book are reserved. The international standard ISO 4156 was also completely revised under German leadership by the responsible standards committee ISO/TC 14. During the chairmanship, the German term for spline (Passverzahnung) was officially introduced and all relevant German standards were revised. The author was a member of the American Standards Institute for Splines ANSI and has been Chairman of the German standards committee AA 2.1 since 1993. This development is supported by numerous inventions. Over the years, however, the business was extended to include the full spectrum of gear and spline metrology. In the beginning, the company only engaged in the development and manufacture of spline gauges. After graduating in mechanical engineering he founded FRENCO GmbH in Nuremberg, Germany in 1978. Ing., FH) Rudolf Och was born in Bamberg, Germany in 1951. ![]()
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