Hardenability 101 June 5, 2018 Charles D. Schultz No Comments Material Grade in Gears The reason not all gears can be made from the same material grade has to do with hardenability. We have long unde...Read More
Parsing the Fine Print May 31, 2018 Charles D. Schultz No Comments If my last posting prompted you to look at a copy of a material cert, you probably noticed that the cert has much more information on it than just ...Read More
Read the Label Carefully May 29, 2018 Charles D. Schultz No Comments So, what exactly do we mean when we say “use good material” for your gears? Once again, the answer is “it depends.” Even the “best” steel may be wr...Read More
Calculated Gear Life Values May 1, 2018 I have a query (regarding) calculated gear life values. I would like to understand for what % of gear failures the calculated life is valid? Is it 1-in-100 (1% failure, 99% reliability) or 1-in-one-thousand (0.1% failure)?Read More
The Long and Short of It April 25, 2018 Charles D. Schultz No Comments One of the problems with “tribal knowledge” is that the terminology can confuse those who are not fully immersed in that community. I have lost ...Read More
Moderation Instead of Modification April 12, 2018 Charles D. Schultz No Comments Few designers would feel comfortable with a face to pinion pitch diameter ratio of 2.00 anymore. Some still prefer to select face width by face con...Read More
Back to Basics: Helical Gears March 29, 2018 Charles D. Schultz No Comments Most of the gearboxes I have been involved with use single helical gears. Its excellent power capacity per mesh makes it the default system for man...Read More
Filling in the Gaps March 27, 2018 Charles D. Schultz No Comments A few weeks ago, I admitted to not knowing much about the Klingelnberg system of bevels. Terry Edwards, chief designer at Pacific Star Marine in Br...Read More
Industry News March 1, 2018 Germany adopts ISO 1328 standard for the measurement of gears, plus other news and announcements from around the industry.Read More
Reliability, Lifetime and Safety Factors March 1, 2018 A discussion of ISO and AGMA standards for gears, shafts and bearings, and the art of designing a gearbox that meets your requirements.Read More