Double Helical Gears

WHITE PAPER | 2026-08-25

Optimised Grinding Processes for Double Helical Gears

The demand for double helical gears in planetary gear systems for engines in the civil aerospace industry is increasing. Innovative grinding processes and state-of-the-art technologies ensure precision, reduced weight, and improved cost efficiency. Learn how KAPP NILES reduced the gap width from 30 mm to 15 mm.

GEAR TALK WITH CHUCK | 2020-07-24

Help Wanted

Northwest Pennsylvania’s Oil Region has a long history in manufacturing. Many of the widgets that made oil extraction and processing possible were ...

GEAR TALK WITH CHUCK | 2017-11-30

Still Pumped About Herringbones

I rambled on about herringbone gear in my last posting but still have more to share on these once commonplace gears. Today we’ll cover the use of c...

GEAR TALK WITH CHUCK | 2017-11-28

Department of Corrections

It was brought to my attention that the graphics used in my recent “herringbone” postings actually show double helical gears. I have a great suppor...

TECHNICAL ARTICLES | 2012-10-01

Differential Gears

What are the manufacturing methods used to make bevel gears used in automotive differentials?

TECHNICAL ARTICLES | 2010-11-01

Zerol Bevel Gears: Tribology Aspects in Angular Transmission Systems, Part III

Zerol bevel gears are the special case of spiral bevel gears with a spiral angle of 0°. They are manufactured in a single-indexing face milling process with large cutter diameters, an extra deep tooth profile and tapered tooth depth.

EVENTS | 2010-11-01

Technically Speaking, a Huge Success

A recap of the AGMA 2010 Fall Technical Meeting.