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Authors

The following authors have written for Power Transmission Engineering.

Benjamin Abert

Benjamin Abert is head of consulting and service at FVA GmbH. He studied at the Clausthal University of Technology. Abert began working for FVA in 2013 as a calculation expert for plain and rolling bearings. These responsibilities increased to expert support and sales in 2018.

Sean Akell

Sean Akell has over 21 years of experience in the automation industry, working in various roles, including customer service, applications engineering, inside sales and marketing at Motion Ai (formerly Axis New England). He has been writing about collaborative robots since their introduction to the North American market over 12 years ago. He holds a B.S. in mechanical engineering from Northeastern University.

Mirelle Ball

Mirelle Ball is marketing consultant - content at ONYX Insight.

Prashant Bardia

Prashant Bardia is an NVH Engineer at John Deere India Pvt. Ltd., specializing in NVH testing and analysis for utility tractors. With nearly 20 years of experience, he focuses on noise source identification, vibration testing, and root cause analysis. He holds degrees from NIT Kurukshetra and IISc Bangalore.

Sean Barunas

Sean Barunas is a product manager with Bosch Rexroth.

Anders Beck

Anders Billesø Beck is vice president of innovation and strategy at Universal Robots.

Ketan Bhate

Ketan Bhate is a Drivetrain Design Engineer at John Deere India Pvt. Ltd. He has more than 14 years of experience in the field of drivetrain design and development. He specializes in gear design and development. He has completed his master’s from Birla Institute of Technology and Science.

David Bolton

David Bolton has 30 years of experience at Allison Transmission / GM Powertrain as an advanced manufacturing engineer for transmission gears and shafts, 14 years of experience at ALD thermal treatment as a senior manufacturing engineer for heat treat distortion control and is currently an independent consultant.

Prof. Dr.-Ing. Christian Brecher

Prof. Dr.-Ing. Christian Brecher has since January 2004 been Ordinary Professor for Machine Tools at the Laboratory for Machine Tools and Production Engineering (WZL) of the RWTH Aachen, as well as Director of the Department for Production Machines at the Fraunhofer Institute for Production Technology IPT. Upon finishing his academic studies in mechanical engineering, Brecher started his professional career first as a research assistant and later as team leader in the department for machine investigation and evaluation at the WZL. From 1999 to April 2001, he was responsible for the department of machine tools in his capacity as a Senior Engineer. After a short spell as a consultant in the aviation industry, Professor Brecher was appointed in August 2001 as the Director for Development at the DS Technologie Werkzeugmaschinenbau GmbH, Mönchengladbach, where he was responsible for construction and development until December 2003. Brecher has received numerous honors and awards, including the Springorum Commemorative Coin; the Borchers Medal of the RWTH Aachen; the Scholarship Award of the Association of German Tool Manufacturers (Verein Deutscher Werkzeugmaschinenfabriken VDW); and the Otto Kienzle Memorial Coin of the Scientific Society for Production Technology (Wissenschaftliche Gesellschaft für Produktionstechnik WGP).

Jens Brimmers

Jens Brimmers has been a research assistant in the gear department at the WZL of RWTH Aachen University since May 2015. His research topics focus on the designing of gears — especially beveloid gears — and the development of the general FE-based tooth contact analysis program, ZaKo3D. Brimmers graduated from RWTH University in Aachen with a master's degree in mechanical engineering and a master's degree in business administration.

Brandon Brownlee

Brandon Brownlee, a food and beverage industry specialist for Motion, has been involved with reliability-centered maintenance for 27 years and has served the industry for 40 years.

Bryan Christiansen

Bryan Christiansen is the founder and CEO of Limble CMMS. Limble is a modern, easy-to-use mobile CMMS software that takes the stress and chaos out of maintenance by helping managers organize, automate, and streamline their maintenance operations.

Michael Cinquemani

AGMA Chair and CEO & President, Master Power Transmission

Dr. Jennifer Clark

Dr. Jennifer Clark has been a technology development manager for Lubrizol for 13 years. Since 2019 she worked as a technology development manager for the industrial grease team, where she focuses on the development of new open gear lubricant technology, grease thickener development and additive formulation.

Dan Congdon

Dan Congdon is a corporate trainer at SEW-Eurodrive.

Stein Crispel

Stein Crispel was born in Halle, Belgium, in 1994. He received a bachelor’s degree in engineering from Vrije Universiteit Brussel (VUB), Brussels, Belgium, in 2015, and a master’s degree in electromechanical engineering from the Bruface Joint Master Program, VUB and the Université libre de Bruxelles, Brussels, in 2017. He is currently working toward a doctorate with the Multibody Mechanics and Robotics Research Group, VUB. Between September 2016 and January 2017, he participated in the Swiss–European Mobility Program for a study abroad with the École polytechnique fédérale de Lausanne (EPFL). He received a fellowship from the Research Foundation—Flanders for his doctoral research. His research interests include the study and development of redundant and energy-efficient actuators for applications with varying loads and speeds. His research also focuses on gear transmissions capable of achieving very high gear ratios suitable to be used in combination with electrical actuators for robotics applications.

Ashley Crowther

Ashley Crowther, chief commercial officer of ONYX Insight, global provider of predictive maintenance technologies for wind energy, has over 10 years’ experience in wind energy operations and maintenance - specifically asset optimization, predictive maintenance, technical due diligence.

Jesus Teran Dagnino

Jesus Teran Dagnino has been working in the power transmission industry for over 10 years.  His experience includes gearbox design, applications, product development, aftermarket and technical support/troubleshooting.

Scan DeCamillo

Scan DeCamillo (1952–2021) was Technical Director for Kingsbury, Inc., and responsible for the design and development of Kingsbury fluid film bearings for worldwide industrial and military applications. He developed performance and structural bearing analysis tools during his career, establishing design criteria used in many publications and specifications. Mr. DeCamillo received his B.S. degree (Mechanical Engineering, 1975) from Drexel University. He was a registered Professional Engineer in the State of Pennsylvania and a member of STLE, ASME, and the Vibration Institute.

Hans-Peter Dinner

Hans-Peter Dinner studied mechanical engineering at the Swiss Federal Institute of Technology (ETH), where during his studies he spent time with Mercedes Benz working on FEM of car bodies; with Buhler in South Africa for training; and with the National University of Singapore for writing his thesis on FEM analysis of medical devices. He began as an FEM engineer, working with the leading consultant in Switzerland on welded structures, pressure vessels and satellite structures. Dinner later joined a leading roller coaster design company, being responsible for all strength verifications. He then moved on to KISSsoft AG, supporting customers in the use of their gear software, working on gear optimization projects, and ultimately transitioning to sales of KISSsoft products, with a focus on the Asian market. In 2008 he started his own consultancy firm, EES KISSsoft GmbH, sharing his time between KISSsoft support and sales in Asia and project work. Key projects included design and testing of SCD3MW and SCD6MW wind gearboxes, and large-bearing calculations for cranes and wind turbines as well as gear optimizations for sugar mills, vertical roller mills and tractors. Dinner’s main interests are planetary gearboxes, tooth contact analysis and testing.

Dr. Robert Dura

Dr. Robert Dura, with a Ph.D. in organic chemistry from Ohio State, has been with Lubrizol since 2014. He’s held key roles, including director of grease and metalworking fluid development. Previously with Boehringer Ingelheim, he recently earned CLGS certification, joining an elite group of grease specialists.

Ralf Epple

Ralf Epple, Head of Product Management, Mayr Power Transmission.

Tim Erlewein

Tim Erlewein is a senior expert in gearing at Wittenstein alpha GmbH and supports the design and optimization of spur, bevel, and planetary gears as well as the development of calculation tools. He holds a BA in Mechanical Engineering from Baden-Württemberg Cooperative State University.

Robert Errichello

Robert Errichello heads his own gear consulting firm, GEARTECH, and is founder of GEARTECH Software, Inc. He has over 50 years of industrial experience. He has been a consultant to the gear industry for the past 37 years and to over 50 wind turbine manufacturers, purchasers, operators, and researchers. He has taught courses in material science, fracture mechanics, vibration, and machine design at San Francisco State University and the University of California at Berkeley. He has presented numerous seminars on design, analysis, lubrication, and failure analysis of gears and bearings to professional societies, technical schools, and the gear, bearing, and lubrication industries. A graduate of the University of California at Berkeley, Errichello holds BS and MS degrees in mechanical engineering and a Master of Engineering degree in structural dynamics. He is a member of several AGMA Committees, including the AGMA Gear Rating Committee, AGMA/AWEA Wind Turbine Committee, ASM International, ASME Power Transmission and Gearing Committee, STLE, NREL GRC, and the Montana Society of Engineers. Bob has published over 80 articles on design, analysis, and application of gears, and is the author of three widely used computer programs for design and analysis of gears. He is technical editor for GEAR TECHNOLOGY and STLE Tribology Transactions. Errichello is recipient of the AGMA TDEC Award, the AGMA E.P. Connell Award, the AGMA Lifetime Achievement Award, the STLE Wilbur Deutch Memorial Award, the 2015 STLE Edmond E. Bisson Award, and the AWEA Technical Achievement Award.

Bruce Fabijonas

Bruce Fabijonas is Manager of Research and Development at Kingsbury, Inc. He oversees Kingsbury’s suite of test rigs and is responsible for Kingsbury’s bearing analysis software. He earned his PhD from the University of Illinois Chicago (Applied Mathematics, 1997) and is a member of STLE.


Aaron Fagan

Aaron Fagan is a Senior Editor for AGMA Media's Gear Technology and Power Transmission Engineering magazines.

Michel Fett

Michel Fett has been a research assistant at the Department of Product Development and Machine Elements at TU Darmstadt since April 2022, where he previously completed his master’s degree in
mechanical and process engineering.

Roger Fittro

Roger Fittro is an Assistant Research Professor and the Associate Director of the Rotating Machinery and Controls Laboratory at the University of Virginia. He received his PhD in Mechanical Engineering in 1998 from the University of Virginia for his work on Multivariable Control of an AMB supported High-speed Machine Tool Spindle. Prior to his current position, Dr. Fittro was an Engineering Manager and Senior Project Leader at General Electric’s Global Research Center in Niskayuna, NY.


Rob Frazer

Rob Frazer received a BSc in Mechanical Engineering and Ph.D. from Newcastle University. He is a senior engineer with the Design Unit at Newcastle University and spent the last 35 years working with gears and gearboxes. Rob leads gear measurement research at the UK’s National Gear Metrology Laboratory (NGML), is chair of British Standard Institute (BSI) gear committee, MCE-5 and a member of the ISO gear accuracy working group (ISO TC60 WG2). He provides technical support to the British Gear Association’s (BGA) research committee, helps deliver its training programmes and teaches on Newcastle University’s MSc and MEng Mechanical Power Transmissions Module.

Jochen Friedel

Jochen Friedel studied materials technology at the University of Applied Science Giessen-Friedberg (Germany), where he graduated as Diplom-Ingenieur. Today he is the director of process engineering in North America and China for the heat treat service division (HTS) of ALD Vacuum Technologies GmbH.

Justin Frohock

Justin Frohock is working as a Research & Development Engineer at Sumitomo Machinery Corp. of America in Chesapeake, VA. He has a B.S. degree in Mechanical Engineering from Old Dominion University. He has 11 years of experience designing, developing, and testing geartrains in multiple industries, and holds two U.S. patents.

Pablo López García

Pablo López García was born in Asturias, Spain, in 1972. He obtained a master´s degree in industrial engineering with the Escuela Técnica Superior de
Ingeniería Industrial de Gijón, Spain, in 1998. He completed a doctorate with the Brubotics research institute of the Vrije Universiteit Brussel (Belgium)
on the potential of planetary gear transmissions in human-robot interaction, in 2022.

Orlando García

Orlando García started his career in the vacuum heat treatment industry in 2013 as a metallurgical R&D Engineer at ALD-TT in Ramos Arizpe, Mexico. Currently he is the metallurgy manager at ALD-TT Ramos Arizpe and he is responsible for the process technology and all R&D-projects of the plant.

Mark Gelardini

Mark Gelardini, senior engineer SKF, application engineering manager, industrial sales CEE, Switzerland, received his MSc from Bern University in Applied Sciences. Gelardini is a sponsor/member of SKF SuPB product innovation and development programs. Scientific interests include bearings in spindle applications, high-speed bearings, and lubrication.

Kristi Giba-Reiss

Kristi-Jo J.H. Giba-Reiss serves the Canadian market as an Application Specialist for Motion’s Onsite Solutions Team. She focuses on helping customer facilities solve problems relating to efficiency, reliability and sustainability through inventory management, energy audits and proactive maintenance solutions. 

Giba-Reiss is passionate about helping customers save money, focusing on increasing plant reliability. She holds a Bachelor of Mining Engineering Technology from Queen’s University and a Diploma in Software Engineering from Lakehead University. She is also a certified MLT/MLA II (Machinery Lubrication Technologist/Analyst). Her career began in IT and progressed to selling engineered pumps in the oil and gas industry, where she was introduced to proactive maintenance and the importance of condition monitoring. 

Alberto Satine Gioiosa

Alberto Satine Gioiosa graduated from the University of Toledo in 2019 with a degree in mechanical engineering. He joined Hexagon in 2021. He is currently focused on coordinating engineering activities for the US System Dynamics team, technical support, and helping customers achieve their simulation goals through projects for durability, efficiency, and NVH analysis.

Dr. Evgenia Golysheva

Dr. Evgenia Golysheva, head of engineering, has been working closely with a majority of UK offshore wind farms for many years providing owners (Centrica, SSE, RWE, SPR) with data enabled engineering projects focusing on increasingly efficiency of offshore wind farm operation, improving turbine reliability and de-risking major maintenance operations. She is leading the UK engineering team at ONYX focusing on developing data driven methodologies for predictive maintenance: life models for the wind turbine components, advanced diagnostics using various condition monitoring systems, and operations and maintenance cost optimization models.

Feliciano Greco

Feliciano Greco, SKF Industrie S.p.A. Villar Perosa, Italy, is manager product factory support super precision bearings. Credentials include technology development—PD&E EMEA and the Engineering Centre, Italy. Greco graduated in aeronautical engineering. He has 35 years of experience in super precision bearings applications, quality, and design.

Blake Griffin

Blake is an expert in automation systems, industrial digitalization, and off highway-electrification. Since joining Interact Analysis in 2017, he has written in-depth reports on the markets for low voltage AC motor drives, predictive maintenance, and mobile hydraulics.

Liang Guo

Liang Guo, SKF, Research and Technology Development, The Netherlands, received a Ph.D. in tribology from City University of Hong Kong. Guo is the author of 20 scientific papers. Scientific interests include modeling of EHL, friction, contact mechanics and surface life.

Georg Hammerl

After studying mechanical engineering at Technical University of Munich, Dr. Georg Hammerl did his PhD in the field of computational mechanics. He joined FVA GmbH in 2017 to further develop the FVA-Workbench. He is an expert in finding smart solutions for complex problems, so the user can safely reach the goal with simple workflows.

Richard Hansen

Richard Hansen is senior automation engineer at Bosch Rexroth. 

Minhui He

Minhui He is a Machinery Specialist with BRG Machinery Consulting LLC, in North Garden, Virginia. His responsibilities include vibration troubleshooting, rotordynamic analysis, as well as bearing and seal analysis and design. As a senior research scientist, he is also conducting research on fluid film bearings, annular seals and rotordynamics in the ROMAC Laboratories at the University of Virginia. Dr. He received his B.S. degree (Chemical Machinery Engineering, 1994) from Sichuan University in China and Ph.D. in Mechanical and Aerospace Engineering from the University of Virginia in 2003. He is a member of ASME and the advisory committee for the Texas A&M Asia Turbomachinery and Pump Symposium.

Andreas Heim

Andreas Heim is currently head of sales industry, Magnetec GmbH.

Dr. Ing. Volker Heuer

Dr. Ing. Volker Heuer studied metallurgy and material science at RWTH Aachen University in Germany. Starting in 1999, he worked as a research engineer at ALD-Vacuum Technologies; from 2007 to 2020, he was the Director of R&D; since 2020, he has been the CTO of the Heat Treat Service Division.

George Holling

George Holling is Technical Director of Rocky Mountain Technologies (george.holling@rockymountaintechnologies.com)

Charles Isaac

Charles Isaac is Global Product Line Manager - Linear Bearings and Guides, Thomson Industries, Inc. He is responsible for the short- and long-term strategic direction of the linear bearings and guides business, including the product roadmap. He earned his B.S. in Manufacturing Engineering from Fairmont State University and an MBA from Walden University. Charles has been with Thomson for three years.

Barry James

Barry James has worked in power transmissions engineering for over 30 years. The majority has been with Romax, now part of Hexagon, where he leads Research and Innovation in the Nexus and Design and Engineering business units.

Matthew Jaster

Matthew Jaster, Senior Editor, has a B.A. in journalism from Columbia College Chicago and has 15+ years of writing and editing experience in automotive, manufacturing, engineering, law and arts and entertainment. He's been with Gear Technology since 2007.

David Kaley

David Kaley is Trelleborg’s global segment manager for industrial automation.

Keiwan Kashi

Keiwan Kashi, Vice President of Engineering, GKN Automotive

Mitch Katona

Mitch Katona is a Product Line Specialist – Screw Jacks, for Thomson Industries, Inc. He is responsible for supporting and developing the Thomson screw jack product line. He earned his B.S. in Applied Engineering from Kent State University.

Steve Keeney

Steve Keeney is Strategic Product & Marketing Director for the Motion Automation Intelligence (Motion Ai) business group. Previously a Regional Manager for Rockwell Automation, he was a partner and owner of  Applied Machine and Motion Control, Inc. (AMMC) when the company joined the Motion team in 2020. Throughout his 34-year career, Steve has focused on conceptualizing and applying automation, machine and motion control solutions.

Maksymilian Kender

Maksymilian Kender is a part of the AGH Racing team with a background in aerodynamics, marketing and journalism. 

Dr Ulrich Kissling

Dr. Ulrich Kissling, founder and managing director of KISSsoft since 1998, stepped down from his managerial role in July to partially transition to retirement. He studied Machine Engineering at the Swiss Technical University (ETH). As a gear expert, Dr. Kissling participates in different Work Groups of ISO for international standards.

Mikołaj Krawczyk

Mikołaj Krawczyk is the deputy project manager, EV Powertrain, AGH Racing.

Don Labriola

Don Labriola, P.E., is President of QuickSilver Controls Inc., a producer of servo motors and controllers (www.quicksilvercontrols.com)

Dirk Lefeber

Prof. dr. ir. Dirk Lefeber was born in 1956. He received a degree in civil engineering and a doctorate degree in applied sciences in 1986 from Vrije Universiteit Brussel (VUB). He is currently an emeritus Professor with the Department of Mechanical Engineering and the former head of Robotics and Multibody Mechanics Research Group, VUB. His research interests include new actuators with adaptable compliance, dynamically balanced robots, robot assistants, rehabilitation robotics, and multibody dynamics.

Benjamin Legrady

Benjamin Legrady has been at Dive Solutions GmbH since 2020 helping engineers worldwide to achieve their business goals with Dive Solutions’ cloud-native simulation platform and has served as a Customer Success Lead at Dive since 2022 leading sales engineering and post-sales. He holds a degree in Mechanical Engineering from Technische Universität Dresden.

Louis Long

Louis Long received his BS in Mechanical Engineering from Carnegie Mellon University in Pittsburgh and began his career as a Suspension Design Engineer at Chrysler Corp in Detroit. He is currently the Director of Business Enablement in the Americas for the System Dynamics business unit of Hexagon Design & Engineering.

Dr Pablo Lopez Garcia

Dr. Pablo López García was born in Asturias, Spain, in 1972. He obtained a master´s degree in industrial engineering with the Escuela Técnica Superior de Ingeniería Industrial de Gijón, Spain, in 1998. After 20 years working in the European automotive industry, he completed a doctorate with the Vrije Universiteit Brussel, Belgium in 2022 on the potential of planetary gear transmissions in human-robot interaction. Since 2021, Pablo is an active member of the AGMA Committee on Robotics and Automation. His research interest are mechanical transmissions for modern robotic actuation.

Dr Mark Malburg

Dr. Mark Malburg is the president of Digital Metrology Solutions. With over 30 years in surface metrology, he is the chief architect of a range of standard and custom software for surface texture and shape analysis. Dr. Malburg has consulted in numerous industries ranging from optics to aerospace. He is a frequent participant in standards committees and has helped shape many of the standards that govern surface specification and control.

Mark Manegold

Mark Manegold is a degreed mechanical engineer with over 25 years of industry experience in applications analysis, design, and project management. He currently is the technical marketing manager at AST Bearings.

Blayne McKenzie Ph.D.

Blayne McKenzie is Technology Manager, Industrial Oils, The Lubrizol Corporation.

Ian Miller

Based out of Calgary, Ian Miller, P.Eng. is National Services Business Development Manager for Motion. He has over a decade of hydraulic and electrical experience in the field, including system design, troubleshooting, on-site installations, and technical training/support. 

Guillermo Enrique Morales-Espejel

Guillermo Enrique Morales-Espejel, principal scientist, SKF Research and Technology Development, The Netherlands, received a Ph.D. in tribology from the University of Cambridge, U.K. Credentials include chair professor at LaMCoS, INSA de Lyon, France, visiting professor at Imperial College London. He has 24 years of experience in roller bearings with scientific interests in modeling of bearing life, friction, lubrication, and surface life.

John Morehead

For 25+ years, John Morehead has helped leading American, European and Asian electric motor manufacturers significantly grow their businesses with winning strategies and successful implementation—from UAV drone motors and ESCs to 800V EV motor systems and everything in between. Motion Mechatronics enables manufacturers of motors, gearing and controls to achieve sustained, profitable growth by assessing and leveraging core competencies and resources through strategies that produce distinct competitive advantage. 

Chris Morrell

Chris Morrell is managing director at Schaeffler Ultra Precision Drives.

Samantha Mou

As a Research Analyst based in China, Samantha Mou provides support in the Industrial Automation sector. Samantha brings with her a master’s degree in economics, and has experience, whilst working in Germany, conducting market research in industrial equipment and automobile components.

Edward Neff

Edward Neff is the founder and CEO of SMAC Moving Coil Actuators. He founded SMAC Corporation in 1990 in Carlsbad, Calif. SMAC has grown to become a global leader in moving coil technology and the largest manufacturer of moving coil actuators. Neff has spent more than 40 years in the automation field and has managed automation companies in Belgium, Japan and the USA. He holds more than 40 patents. Neff grew up in Birmingham, Mich., and is a graduate of the University of Michigan. He’s a retired international rugby player and enjoys watching the Wales national team.

Pablo Olachea

Pablo Olachea is a Product Line Specialist – Linear Bearings & Guides for Thomson Industries, Inc. He supports the linear bearing and guide business, assisting sales and customer support with technical product training. Olachea earned his degree in Mechanical Engineering at the Tijuana Technology Institute and has worked at Thomson for eight years.

Robin Olson

Robin Olson is the director of application engineering in the Engineered Gear group of Regal Rexnord’s Motion Control Solutions division. She started her career in gear engineering with the Falk Corporation in 1995 and has held previous roles in engineering software and analysis, sustaining engineering, warranty, test lab, and technical services. She has bachelor’s and master’s degrees, both in Physics. She has participated in various AGMA Technical Committees since 1995 and is currently a member of the Helical Gear Rating Committee. She has the honor of representing the United States on Working Group 6 of ISO TC 60, covering the topic of Gears.

Samuel Orozco

Samuel Orozco is a product marketing manager for fluid and motion control at Emerson. He holds a bachelor’s degree from the University of Detroit Mercy and earned his MBA from Oakland University.

Carter Paden

Carter Paden is product manager at Bosch Rexroth.

Dijam Panigrahi

Dijam Panigrahi is co-founder and COO of GridRaster Inc., a leading provider of cloud-based AR/VR platforms that power compelling high-quality AR/VR digital twin experiences on mobile devices for enterprises.

Norm Parker

Norm Parker is currently Technical Fellow at Stellantis. He has contributed articles to PTE since 2014.

Pravin Patil

Pravin Patil is the Global Drivetrain NVH Simulation Lead at John Deere, with 15+ years of expertise in drivetrain NVH, durability, and testing. He specializes in dynamic simulations to mitigate gear noise and has served on the AGMA Sound & Vibration Committee. He holds a master’s from IIT Kharagpur.

Jordan Pitt

Jordan Pitt graduated with a Master’s in Mechanical Engineering from the University of Glasgow. He led the Unsprung Mass & Drivetrain sub-team within UGRacing, the University of Glasgow’s Formula Student race team, and worked extensively on the design and development of drivetrain solutions for their electric vehicle.

Calogero Principato

Calogero Principato, senior engineer, technical sales at KISSsoft, was born in Italy in 1986 and holds a Mechanical Engineering degree from the University of Modena and Reggio Emilia, the “Enzo Ferrari” Department of Engineering. With 10+ years in aviation and automotive gear design, he joined KISSsoft in 2023 and supports AGMA’s electrified vehicle design initiatives.

Ian Prowell

Ian Prowell, principal engineer at ONYX Insight, has worked professionally in multiple engineering disciplines before focusing primarily on structural engineering in wind energy since 2008.

Anita Przyklenk

Anita Przyklenk obtained a BSc, MSc and Ph.D. in Physics from TU Braunschweig, Germany. Since 2018, she is a postdoctoral research fellow at Physikalisch-Technische Bundesanstalt (PTB) in the working group for gear and thread metrology. Her research topic is three-dimensional and holistic gear and screw thread evaluation methodology. She is the Secretary of the European Metrology Network for Advanced Manufacturing by the European Association of National Metrology Institutes (EURAMET).

Tom Reavie

Tom Reavie joined Newcastle University’s Design Unit in 2017 after completing his master’s degree in mechanical  engineering. His work involves design of mechanical power transmissions with a focus on gear design and analysis. Tom is a member of the UK’s National Gear Metrology Laboratory (NGML) and he is completing a Ph.D. alongside his research in gear metrology.

David Regan

David Regan is Director of Enterprise Sales, Ready Robotics.

Neville Sachs P.E.

Neville Sachs, P.E., is a Stevens Institute of Technology graduate and renowned expert in mechanical failure analysis. He has authored three books, contributed to four others, published over 60 technical papers, and taught industrial failure analysis across North America and Europe since 1987. He is active in ASME, STLE, NSPE, and AMPP.

Roberto Saruls

Roberto Saruls, a chemical engineer from UERJ, has been a product manager at Lubrizol for 8 years, focusing on the Latin American industrial segment. With 38 years of prior experience in R&D, field engineering, and marketing, he also holds a master’s in industrial processes and an MBA in marketing.

Stefan Scharting

Stefan Scharting is the application engineering manager for hydraulic and electric drives within the power transmission sector at Schaeffler’s Bearings & Industrial Solutions division in Schweinfurt, Germany. He holds a graduate degree in engineering (Diplom-Ingenieur) from the TU Darmstadt, one of Germany’s leading technical universities.

Robin Schmidt

Robin Schmidt is the Sales Manager for Mining in North and South America at Regal Rexnord.

Taylor Sims

Taylor Sims is a BSME, CMRT at Atlanta Gear Works.

Luiz Soares

Luiz Soares, Director of Sales and Business Development, Voith Turbo

Tyler Sorenson

Tyler Sorenson has been working as an R&D Engineer at Sumitomo Machinery Corp. of America for three years. He has a B.S. degree in Mechanical Engineering from Bringham Young University.

Martin Stein

Martin Stein has studied mathematics and physics at Leibniz University Hanover, Germany, and finished his Ph.D. in 2012. He’s been heading the working group for gear and thread metrology at Physikalisch-Technische Bundesanstalt (PTB) since 2014. One of that group’s main research areas is metrology for large gears as used in wind energy systems. Martin Stein is an active member in national standardization bodies for gear metrology of the VDI/VDE and DIN. He is a lecturer at TU Braunschweig for the MSc course on Metrology and Measurement Technology.

Randy Stott

Randy Stott, Associate Publisher & Managing Editor, has a Bachelor's degree in journalism and an MBA in marketing. His background includes a wide variety of technical writing and editing in the automotive, software and manufacturing industries. He was instrumental in the launching of geartechnology.com in 1996, powertransmission. com in 1997 and Power Transmission Engineering in 2007. He joined Gear Technology in 1994 and became managing editor in 1998. He became Publisher & Editor-in-Chief in 2020.

Willem J. Sullivan

Willem J. Sullivan, Manager, Engineering, Regal Rexnord

Thomas Tallerico

Thomas Tallerico is a Research Mechanical Engineer at NASA Glenn Research Center, Cleveland Ohio. He conducts fundamental research on advanced drivetrains for aerospace applications including research on mechanical gears, magnetic gears, and electric motors.

John Tashjian

John Tashjian is a systems engineer at Andantex USA Inc. (Member of the Redex Group).

Dr. Mikael Thunman

Dr. Mikael Thunman is Ovako Group Segment Leader for Bearings and Strategic Account Manager. He has been with Ovako for 10 years with previous roles including VP Technical Customer Service and Quality BU Hofors-Hellefors, Director Technology and Quality BU Hellefors and Director Technology and Quality BU Bright Bar.

Tim Tiebert

Tim Tiebert is an electrical specialist at Motion. He has worked in automation and engineering for over 40 years, with 25 at Kaman Distribution and 15 as a project and plant engineer in the food industry. His expertise covers automation, industrial control, power transmission, electrical engineering, and control systems design.

Hedzer Tillema

Product Line Manager, Engineering Tools, SKF B.V., the Netherlands

Tuan Ton

Tuan Ton; application engineer; BSME Mechanical Engineering Regal Rexnord. 

Dr. Tania Loazia Uribe

<p>Dr. Tania Loaiza Uribe is a research engineer in Ovako’s R&amp;D department. She has a bachelor’s degree focused on materials characterization in high-strength steels and a Master’s degree in advanced materials science and engineering. The research in this article was carried out in pursuit of her PhD in high-strength steels, specifically in rolling contact fatigue for bearing applications.</p>

Carlos Valderrama

Carlos Valderrama is based in Bogota and in his role as global offer manager for the food and beverage industry within SKF Lubrication Management, he supports a number of customers in ensuring smooth, safe operations.  

Bram Vanderborght

Prof. dr. ir. Bram Vanderborght obtained his doctorate from Vrije Universiteit Brussel (VUB) in 2007. He performed research at JRL lab in AIST, Tsukuba (Japan) and did postdoctoral research at the Italian Institute of Technology. Since 2009, he has been a professor at VUB. He had an ERC starting grant and is currently coordinating three EU projects on smart and self-healing materials for soft robots. His research interests are human-robot collaboration for applications for health and manufacturing like exoskeletons, prostheses, social robots, drones and cobots. He is affiliated to the Interuniversity Microelectronics Institute (IMEC), Belgium, as scientific collaborator.

Anand Varadharajan

Anand Varadharajan received a bachelor’s degree in mechanical engineering from Anna University, Chennai, India, in 2014, and a master’s degree in electromechanical engineering from Vrije Universiteit Brussel (VUB), Brussels, Belgium, and the Université libre de Bruxelles, Brussels (under a Bruface joint program), in 2020. Prior to his master’s he worked with the KONE elevators as a design engineer for three years. Since 2020, he has been working as a researcher with the Robotics and Multibody Mechanics Group, VUB and his research interests include optimization of gearbox efficiency based on tooth profile modifications.

Georgios Vasileiou

Georgios Vasileiou is currently on course to complete his Ph.D. thesis on high pressure angle gear transmissions. His research focuses mainly on the optimization of gear geometries, modelling of gear dynamics, experimental gear strength evaluation and the use of alternative gear and lubrication materials.

Tom Verstraten

Prof. dr. ir. Tom Verstraten received a master’s degree in electromechanical engineering and a doctorate from Vrije Universiteit Brussel (VUB), in 2012 and 2018 respectively. In 2020, he became an assistant professor with the Robotics and Multibody Mechanics Research Group, VUB. He was awarded fellow- ships of the Research Foundation—Flanders for both his doctoral and postdoctoral research, as well as a Fulbright grant for visiting scholars for a research stay at the University of Tulsa from 2018–2019. He also worked in industry as an R&D Engineer with Aquasystems International, Halle, Belgium, from 2012–2013, and as a visiting researcher with Technische Universität Darmstadt, Darmstadt, Germany, in 2017. His main research interests include study and development of energy-efficient actuation systems for robotic prostheses, exoskeletons, and collaborative robots, and elastic actuators and redundant actuation.

John Wallace

John Wallace is a degreed mechanical engineer with over 35 years of industry experience in engineering, manufacturing, and quality assurance. He recently retired after serving as vice president of operations at AST Bearings from 2003 to 2022.

Steve Warnock

Steve Warnock is director of engineering and technical support at Bailey International, LLC. 

Cori Watson-Kassa

Cori Watson-Kassa is a Research Scientist in the Rotating Machinery and Controls Lab (ROMAC) at the University of Virginia. She received her Ph.D. also from the University of Virginia in 2018. Cori’s research focuses on CFD and other numerical methods for bearing and seal design. She is a member of ASME, STLE and SWE.

Marcin Wikło

Marcin Wikło, Ph.D., researcher at the University of Technology and Humanities in Radom, is the head of the Digital Technology Centre. Experience gained during the implementation of scientific projects and orders carried out for the industry, including designing 6-axis robots and cycloidal gears for the aerospace. Since 2021 associated with the Future Industry Platform.

Marius Willecke

Marius Willecke, M. Sc. studied Mechanical Engineering at RWTH Aachen University 2019, graduating with distinctions. Since 2019, he has served as a research assistant at WZL of RWTH Aachen University. His primary interests include end-of-line testing development of tooth contact simulation software and simulation of the acoustic behavior of gearboxes.

David C Willens

David C. Willens is the Director of Research and Development at Kinefac Corporation, Worcester, Mass. He has a Ph.D. in mechanical engineering from Worcester Polytechnic Institute and is co-author of the chapter on the Rolling Process in the 2015 McGraw Hill Manufacturing Engineering Handbook. He has been involved in the design of thread and form rolling machinery, dies, and processes for over 18 years.

Amanda Williams

Amanda Williams, content marketing manager for Global New Product Introductions at Gates Corporation, has five years of experience talking to customers about Gates products. Her constant collaboration with marketing, sales, and product application teams results in a well-rounded understanding of the ways Gates products and systems are used in the real world.

Houston G Wood

Houston G. Wood is Professor of Mechanical and Aerospace Engineering at the University of Virginia in Charlottesville, Virginia. He received his B.A. and M.S. in mathematics from Mississippi State University and his Ph.D. in applied mathematics from the University of Virginia. Since 2012 he has served as Director of the Rotating Machinery and Controls Laboratory.


Kim Woodham

Kim Woodham is product marketing manager at Ansys. 

Johannes Wüthrich

Development, KISSsoft AG, Switzerland

Mortiz Zalfen

Moritz Zalfen is a research assistant in the Gear Department of the Laboratory of Machine Tools and Production Engineering (WZL) of RWTH Aachen University and group leader of the gear power density group. His research focus is the load-carrying capacity of the tooth root and the influence of dynamics on the gear load capacity. Zalfen studied mechanical engineering at RWTH Aachen University and has a master´s degree in automotive engineering and transport.

Mike Zecchino

Mike Zecchino has been creating resources and technical content related to measurement and surface texture for over 20 years. His articles have appeared in dozens of publications, and his training materials and videos support numerous measurement instruments and technologies.