Archives

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: Dr. Alexander L. 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...

Company Profile: KHK USA

Offering one of the largest selections of metric-dimensioned power transmission gearing in North America as a distributor for Kohara Gear Industry, KHK USA services its...

A New Class of Industrial Gear Oil

By: David B. Gray, Rene Koschabek & Aidan Rose

A new class of industrial gear lubricants based on alternative synthetic materials has been developed to satisfy critical market performance expectations, ensure global supply...

Company Profile: American Steel Treating

For over 25 years, American Steel Treating has provided leading OEMs and suppliers with heat treating solutions, while continuously broadening its capabilities in the thermal...

Tribological Coating Wear and Durability...

By: Ryan D. Evans, Carl H. Hager Jr., Ph.D. & Randy Kruse

While it is generally known that extreme contact pressure and sliding velocity operating conditions can lead to coating wear, a better understanding of the thresholds that...

Company Profile: Horsburgh & Scott

By: Molly J. Rogers

With nearly 130 years of experience, Horsburgh & Scott has remained a strong gear manufacturer during many economic swings by focusing on high-quality materials,...

New Hobbing Solutions for Faster Production of...

By: Gottfried Klein

Machine platforms that integrate hobbing and chamfering/deburring operations are key to more economical production of quiet, dependable, and smooth-running gears and shafts...

Influence of Surface Finishing on the Load...

By: Prof. Dr.-Ing. Christian Brecher, Philip Konowalczyk, M.Sc. & Sascha Hessel

Test results are presented for an investigation of the influence of surface finishing processes on the impact of PVD/PECVD coatings concerning the pitting load...

Company Profile: Koepfer America, LLC

By: Molly J. Rogers

As the North American factory sales and technical support organization for high-end European gear machine and tool manufacturers, Koepfer America offers a line of solutions for...

The Benefits of Asymmetric Gears

By: Andreas Mehr

A newly developed asymmetric gear tooth generating-grinding method combines maximum productivity with superior quality.