Addressing internal integrity
Gear inspection is a critical aspect for producing a quality product. Jesse Garant of Jesse Garant Metrology Center recently sat down with Gear Solutions...
Evaluating the Unknown Geometry of High Accuracy Gearing
By Prasmit Kumar Nayak, A. Velayudham and C. Chandrasekaran
Evaluation of geometry of used and broken gear is a seldom practice followed in the fields...
Driving Gear Development
Ask Chuck Chandler, plant manager at SEW Eurodrive USA in Lyman, South Carolina, about the range of applications for the spiral bevel gear units...
Gear Tooth Strength Analysis of High Pressure Angle Cylindrical Gears
The gear tooth strength of high pressure angle gears is studied and compared with that of conventional pressure angle gears. The comparison is carried...
Meeting Manufacturing Tolerances with FE-Based Design
By Prof. Dr.-Ing. C. Brecher, Dr.-Ing. C. Löpenhaus, Julian Theling,
Marius Schroers, and Dipl.-Ing. Daniel Piel
Tooth flank modifications are used to optimize the excitation...
Continuous improvement in generating gear grinding
With many years of development, generating gear grinding is at a highly evolved point. It is no longer a question of any mainline gear...
Lubrication and wear in forging
Both hot and cold forging are batch-type processes in which steady-state conditions are never fully achieved and the initial lubricant supply must perform adequately...
A Competitive Edge Starts at the Spindle
Despite some 750,000 CNC mills put into service in the United States over the past 15 years, CNC machining job shops often hover at...
Choosing a Resharpening Resource
On a per-unit basis, the overall cost of cutting tools in a gear cutting process boils down to only a few percentage points. As...
Effects of Asymmetric Cutter Tip Radii on Gear Tooth Root Bending Stress
By Dr. Abdullah Akpolat, Dr. Nihat Yildirim, Burak Sahin, Omer Yildirim, Bulent Karatas, and Fatih Erdogan
Tooth root fillet is the maximum bending stress concentration...
Introducing the New Blue
Gear manufacturers today must turn on a dime to meet fast-changing customer demand and marketplace conditions with faster production of smaller lot sizes. More...
Induction Gear Hardening: Part 2
This is the second installment of a two-part article on induction hardening of gears and gear-like components. Part 1 was published in the February...
Root Fillet Optimization of Gears with Asymmetric Teeth
By Dr. A.L. Kapelevich and Dr. Y.V. Shekhtman
The Direct Gear Design method optimizes various parameters and elements of gear tooth geometry to achieve the...
Improving the Friction Power of Gears and Bearings
A machine that runs endlessly without any wear and frictional losses — who wouldn’t dream of that? Unfortunately, such a machine does not exist...
CFD Simulation of Power Losses and Lubricant Flows in Gearboxes
Printed with permission of the copyright holder, the American Gear Manufacturers Association, 1001 N. Fairfax Street, Suite 500, Alexandria, Virginia 22314. Statements presented in...
Induction Gear Hardening
Over the years, gear manufacturers have increased their knowledge of the production of quality gears and gear-like components. This knowledge has led to many...
Choosing a Planetary Gearhead
From CGI Inc. staff
When a motor is being designed into a motion control system, all too often the benefits of a gearhead are realized...
Measuring Root/Flank Stress in Plastic Gears
The number of plastic gears used in different applications is increasing every year, mostly due to their cost effectiveness for large series production and...
Closed Loop Machining of Cylindrical Gears
Leonhard Euler’s 1760 invention of making cylindrical gears with an involute profile was the beginning of a success story. As a tooth profile, the...
Fatigue Performance and Cleanliness of Carburizing Steels for Gears
The cleanliness of steels used for gears is of great importance when looking to improve their life or increase loads. In this paper, carburizing...
