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For maximum life in carburized and ground gearing, I have been advised that fully grinding a radius into the root gives maximum resistance against fatigue failures. Others have advised that a hobbed and unground radius root form is best. Which is best, and why?

The Pros and Cons of Fully Ground Root Fillets

August 2014 Gear Technology

August 2014 issue of Gear Technology

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Gear Technology Videos


A new way to measure tooth thickness on internal parts using a span micrometer. The gage is set to a master and then placed over several teeth. The Slone Gear software will calculate the tooth thickness/dimension under pins.

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Gear Industry News(see older news)

A "Call for Papers & Posters" is issued to solicit contributions for the technical program for Powdermet 2015 organized and...Powdermet 2015 Issues Call for Papers (August 26, 2014)
A "Call for Papers & Posters" is issued to solicit contributions for the technical program for Powdermet 2015 organized and...

Bipin Doshi, president of Schafer Industries, has announced the appointment of Scott Childers as general manager of the company’s G...Schafer Appoints Gear Unit General Manager (August 25, 2014)
Bipin Doshi, president of Schafer Industries, has announced the appointment of Scott Childers as general manager of the company’s G...

Ideal Gear and Machine Works Inc. recently announced the appointment of Jim Mantei as president. Mantei has more than 25 years experience...Ideal Gear Appoints President (August 21, 2014)
Ideal Gear and Machine Works Inc. recently announced the appointment of Jim Mantei as president. Mantei has more than 25 years experience...

Dontyne Systems continues to expand its customer base across the world and has secured work for development of customer specific software...Dontyne Systems Expands Office Space (August 18, 2014)
Dontyne Systems continues to expand its customer base across the world and has secured work for development of customer specific software...


Gear Industry Events(see more events)





IMTS 2014 (September 8-13, 2014)
The International Manufacturing Technology Show (IMTS) is the largest manufacturing technology show in the Western Hemisphere...


Gear Failure Analysis Seminar (September 8-10, 2014)
Big Sky Resort, Big Sky, Montana. In AGMA’s Gear Failure Analysis Seminar, attendees will examine the various types of gear failure, such as macropitting, micropitting, scuffing, tooth wear and breakage...


Gleason Face Mill Dev Mech Mach (September 8-12, 2014)
Rochester, New York. Gleason has over 145+ years of expertise in production of gear manufacturing machinery. The company provides customers with opportunities to participate in many seminars, schools, classes and presentations...


Gleason Face Hob Dev on Phoenix (September 15-19, 2014)
Rochester, New York. Gleason has over 145+ years of expertise in production of gear manufacturing machinery. The company provides customers with opportunities to participate in many seminars, schools, classes and presentations...


AMB 2014 (September 16-20, 2014)
Stuttgart, Germany. AMB, the international exhibition for metal-working, is considered a leading trade fair and one of the top five trade fairs worldwide in this industry...