Archives

Company Profile: Heiko Machine Tools LLC

By: Kenneth Carter

With a recent collaboration with a maker of cross wedge rolling machines, Heiko Machine Tools LLC is poised to offer its customers high-end equipment for the metal-forming...

The Bold New World of Chamfering and Deburring

By: Gottfried Klein

Chamfering and deburring are finally getting the respect they deserve, as manufacturers devise ingenious new ways to take the pain out of applying these important auxiliary...

Contact Ratio Optimization of Powder-Metal Gears

By: Alexander Kapelevich & Anders Flodin

Price and the ability to offer a much larger design window are making manufacturers look to powder metal gears as a solution for high-performance gears.

Gear Expo 2017: What Drives You

Join us at Gear Expo 2017, THE Drive Technology Show, where you’ll be introduced to exciting new products, technology and services tailored to the drive technology and...

Pre-Nitriding: A Means of Significantly...

By: Thomas Hart

Pre-nitriding is a technology that addresses grain growth and creates a finer grain structure in the carburized case at higher temperatures. Case studies show how carburizing...

Comparison of Tooth Interior Fatigue Fracture...

By: Baydu Al, Dr. Paul Langlois & Dr. Rupesh Patel

A comparison of tooth interior fatigue fracture load capacity with the predicted bending and pitting fatigue capacities, as calculated according to standards. Effects of...

Company Profile: ASI Drives Inc.

By: Molly J. Rogers

ASI continues to expand its testing, engineering, and manufacturing capabilities through cost-effective design and manufacturing of increasingly sophisticated electromechanical...

Turning to Rolling Bearings for Industrial...

By: Rachel Braddick

Understanding the pros and cons of bearing types for industrial gearboxes and monitoring bearings once in service can help contribute to successful application outcomes.

Company Profile: Wenzel America

By: Molly J. Rogers

Wenzel America is an innovative provider of customized metrology and styling solutions, built on a solid foundation of German precision engineering and strong partnerships as a...

Worm Screw High-Speed Manufacturing

By: Jean-Laurent Feutren

A comparison of standard worm hobbing to the worm screw power skiving (WSPS) process is discussed, including cutting speeds, axis rotational speeds, machine kinematics, and...

Impact of Surface Condition and Lubricant on...

By: Suren Rao, Ph.D., Gary J. Sroka Ph.D., Aaron C. Isaacson & Matthew E. Wagner

An experimental study, with variables including superfinishing, coated gear teeth, and two different lubricants, evaluates the effective coefficient of friction in a gear mesh,...

The Internet of Gears: New Perspectives Through...

By: Peter Boiger & John Amendola

This approach from Renk AG allows manufacturers to form a network with their products, allowing operators and gear designers an accessible set of data and providing advantages...

Review of Microstructure and Properties of...

By: Giri Rajendran & Jason Hassen

A review of the microstructure and properties of tin bronze, manganese bronze, and aluminum bronze material that make them suitable for specific worm gear applications is...

Introducing a New Machine Concept for...

By: Dr.-Ing. Deniz Sari, Dr.-Ing. Klaus Peiffer & Ing. Enrico Landi

A breakthrough design has been developed to optimize stiffness, stability, and speed of the gear generating grinding machine, reducing non-productive time in the process.

Company Profile: Rochester Gear Inc.

By: Molly J. Rogers

With new owners taking over the business in 2007 and implementing strategic changes such as new equipment investments and achieving ISO accreditation, Rochester Gear has the...

The Whirling Process in a Company that Produces...

By: Dr. Massimiliano Turci & Dr. Giampaolo Giacomozzi

Whirling is a fast method of producing worms: a toolholder ring, carrying a series of profiled carbide cutters, is set eccentric to the workpiece axis and rotates at a high...

Understanding the Basic Principles of Power...

By: Nicklas Bylund, Ph.D.

General guidelines and simple mathematics, including ways to calculate spindle speeds, are presented to assist manufacturing engineers and decision-makers in determining if...

A Look at Expanding Mandrels for Gear Workholding

By: Timothy Zenoski

Expanding mandrels that hold gears between centers are used in the gear manufacturing process, most commonly in gear inspection, where high precision and range of expansion are...

Company Profile: Southern Gear & Machine, Inc.

By: Molly J. Rogers

Specializing in gears and gearbox assemblies for the aerospace and defense industries, Southern Gear is celebrating 60 years of success attributed to customer and employee...

Developing an Energy-Efficient Industrial Gear Oil

By: Shubhamita Basu, Daniel Wilkerson & James Vinci

Fluid evaluations were conducted using an efficiency rig instrumented with a production-scale worm gearbox. Testing was conducted under a wide range of speeds and loading, and...

Company Profile: Affolter Technologies SA

By: Molly J. Rogers

Building upon its almost 100-year history of making small gears and pinions for Swiss watchmakers, today the company is manufacturing technologically advanced high-precision...

Parametric Geometric Modeling of a Spur Gear...

By: Dr. Gonzalo Gonzalez Rey & Ing. Gerardo Brianza Gordillo

This study shows how the global equations tool and general calculation formulas in the SolidWorks application can be used to update a model just by modifying the spur gear...

Intelligent Process Monitoring Is Advancing...

By: Jorge L. Pena-Mena

A real-time tool monitoring system for gear hobbing machines has been developed and implemented in manufacturing plants to accurately detect and track tool wear through data...

Influence of Contact Conditions on the Onset of...

By: Dr. Amir Kadiric & Pawel Rycerz

Experimental results, obtained on a triple-disc micropitting rig under conditions designed to isolate the effects of the slide-roll ratio and specific film thickness, show that...

Optimizing Gear Macro and Microgeometry To...

By: Neil McNab, Greg Mitchum & Erik Ostergaard

A system approach is used to optimize the macro and micro design to minimize the transmission error while ensuring that robustness (bending, contact, scuffing, and...

Gear Design Relevant Cleanness Metrics

By: E. Buddy Damm & Dr. Peter C. Glaws

A method is presented to characterize premium quality clean steels using statistics of extreme values (SEV) and quantitative stereology. The data can be used to perform gear...

Company Profile: Felsomat

By: Molly J. Rogers

As an innovative leader in production technology, Felsomat provides highly efficient and flexible systems for the transmission and engine manufacturing industries.

Pitch Factor Analysis for Symmetric and...

By: Alexander Kapelevich

Pitch factor analysis is an analytical tool that can be used for comparison of different gear geometry solutions by exploring the characteristics of involute gear mesh...

Accelerated Testing and Temperature Calculation...

By: Dr. Aljaz Pogacnik & Joze Tavcar

Comparing different material combinations and testing conditions, results are presented from an accelerated testing procedure for polymer gears to provide a more accurate...

Application of Advanced Mesh Analysis To...

By: Terry Klaves

A case study demonstrates the benefits of advanced mesh analysis, including design and application of optimized microgeometry through precision tooth form grinding....

Machines Profile: Gehring L.P.

By: Molly J. Rogers

As a leader in advanced honing technology with a 90-year-old history, Gehring meets current demands and future challenges through innovative solutions, excellent training...

Services Profile: Riley Gear Corporation

By: Molly J. Rogers

Celebrating its 70th anniversary, Riley Gear Corporation partners with OEMs in a wide range of industries to provide custom gears, precision gears, high-speed gears, and...

Tooling Profile: Radiac Abrasives

By: Kenneth Carter

A history of excellence and experience spanning 100 years has made Radiac Abrasives the go-to manufacturer for conventional bonded and superabrasives.

Company Profile: Redin Production Machine

By: Molly J. Rogers

From an innovative machine builder in the 1940s to a leader in deburring machines, Redin Production Machine looks toward continued opportunities to provide its customers with...

An Introduction to Shot Peening for Increasing...

By: Richard E. Brooks

As a repeatable process that follows specifications and procedures in order to improve resistance to fatigue and stress corrosion cracking, shot peening has valuable benefits...

Calculating the Risk of Micropitting Using ISO...

By: Dr.-Ing. Burkhard Pinnekamp & Dr.-Ing. Michael Heider

This paper describes the definition of micropitting, the actual calculation method, and its application to practical examples if and where micropitting has occurred. The...

Non-Contact Gear Defect Detection Is Now Possible

By: Brian Slone & Richard Warns

Combining the technical synergies of a laser company, a gear measurement company, and a software development company resulted in the development of an innovative product that...