Optimization of Gear Tooth Contact by Helix Angle Modification
Introduction Gears that are smaller, cheaper, and equipped with more efficient power transmission are the ongoing objective of gear designers. […]
Why Use a Wire EDM Worm Wheel in a Plastic Injection Molded Application
Crossed-axis helical gears (non-enveloping) is a method of transferring motion when using non-parallel axis shafts. These shafts are typically at […]
Gear Resonance Analysis and Experimental Verification Using Rapid Prototyped Gears
Weight reduction is of great importance in the design of gearing for aerospace applications. Natural resonance responses of the gear […]
Principal Design Parameters Of Gearing With Non-Parallel Axes Of Rotations
This paper pertains to gearing with non-parallel axes of rotation of the driving and the driven members. Examples of the […]
Dynamic Simulations of Radial Lip Seals Followability in an Industrial Gearbox
Industrial gear units are widely used in power transmission systems. They are composed of shafts, gears, rolling elements bearings and […]
Cubitron II: Precision-Shaped Grain (PSG) Turns the Concept of Gear Grinding Upside Down
To date, grinding, according to the German DIN Standard 8580, is “machining with geometrically undefined cutting edges” while other machining […]
Modernization of Main Helicopter Gearbox with Asymmetric Tooth Gears
Application of asymmetric tooth gears for aerospace propulsion drives allows for considerably increased power transmission density, potentially increasing their load […]
ONLINE EXCLUSIVE: Gear Molding – Where It’s Heading
Plastic gears are growing larger, more precise, more complex in geometry and more powerful. High performance resins and long-fiber compounds […]
Using Integrated Computational Material Science to Create Virtual Simulations of Gear Fatigue Lifetime
Material science is the oldest of all science and engineering disciplines. It is not an overstatement to say that materials […]
Analysis of Gear Root Forms: A Review of Designs, Standards and Manufacturing Methods for Root Forms in Cylindrical Gears
Gear root form is an important but often neglected element of the gear. The stress concentration point typically lies in […]
Striving for High Load Capacity and Low Noise Excitation in Gear Design
Many dimensions of the gears and the toothing are determined that have significant influence on load capacity and noise excitation. […]
Contact Analysis for Planets in KISSsoft
KISSsoft’s contact analysis software is widely used because it calculates a wide variety of characteristics of interest for gears that […]
Economics of Machining Bevel Gears on Multi Tasking Machines
Bevel gears have been made for over 50 years. There have been several incremental improvements to the initial methods, but […]
Hobbing Large Gears with Custom Workholding Let ROI Blossom
Savvy gear manufacturers not only look at new machines and cutting tools but also focus on and invest in their […]
Add Big Gear Sets to the Multi-Tasking List
Many shops increasingly incorporate full 5-axis multi-tasking machine tool technology because it allows them to handle any kind of part […]
AGMA’s Wealth of Resources II
In the depths of the recession that started in 2008, there were a lot of questions surrounding Gear Expo 2009. […]
Powder Metal Gears, Part IX
In Part IV, Macro Design was discussed and a corrugated web was presented. The idea of the corrugated web came […]
A Field Case Study of ‘Whining’ Gear Noise in Diesel Engines
This paper describes the work performed to reduce first order gear mesh vibration, which was the root cause of an […]
The Real Truth Behind Cpk and Ppk Capability and Potential Process Studies
The most common definition of Cpk and Ppk is this: Cpk is the short-term capability of a process, and Ppk […]
Horror Stories of Costing
My pet peeve is seeing companies lose money needlessly in the process of costing and pricing. This happens for four […]
