Virtual meetings don’t slow technical committee’s accomplishments


2021 was AGMA’s second year in a row of holding only virtual technical committee meetings. Despite the challenges, our many hardworking volunteer committee members pressed on and brought six new AGMA documents to publication, reaffirmed nine documents, and worked on 14 additional open projects.

Documents added to our catalog in 2021 include:

• AGMA 911, Design Guidelines for Aerospace Gear System, which is a complete rewrite of the 1994 edition to include the latest materials, manufacturing process, and other aerospace specific developments.

• AGMA 946-A21, Test Methods for Plastic Gears, a multi-year project, which is AGMA’s first document to standardize and explain the unique requirements of plastic gear testing.

• Two ISO gear tolerancing documents used widely around the world, and now adopted by AGMA, ANSI/AGMA ISO 1328-2-A21, and AGMA ISO 10064-1-A21.

• And out of our wormgearing committee, new revisions to ANSI/AGMA 6034 and ANSI/AGMA 6134, the U.S. customary and metric editions of Practice for Enclosed Cylindrical Wormgear Speed Reducers and Gearmotors.

Looking ahead in 2022, AGMA technical committees will continue work on 14 documents, including an extensive reorganization and update to ANSI/AGMA 6008, Specifications for Powder Metallurgy Gears, which will include the latest developments since it was last revised in 1998. Our Sound and Vibration committee will continue work on a new condition monitoring document that began in 2021. And we are especially looking for volunteers in the high-speed gearing industry to help with a possible revision to the high-speed gearing standard ANSI/AGMA 6011-J14.

The current list of active AGMA projects include:

AGMA 919-2: Condition Monitoring and Diagnostics of Gear Units and Open Gears: Part 2 – Applications and Advanced Analysis.

AGMA 923: Metallurgical Specifications for Steel Gearing.

AGMA 925: Effect of Lubrication on Gear Surface Distress.

AGMA 926: Recommended Practice for Carburized Aerospace Gearing.

AGMA 929: Calculation of Bevel Gear Top Land and Guidance on Cutter Edge Radius.

AGMA 943: Tolerances for Spur and Helical Racks.

AGMA 947: Gear Reducers — Thermal Capacity Based on ISO/TR 14179-1.

AGMA 955: Information sheet on gear lubrication.

ANSI/AGMA 1012: Gear Nomenclature, Definitions of Terms with Symbols.

ANSI/AGMA 1103: Tooth Proportions for Fine-Pitch Spur and Helical Gearing.

ANSI/AGMA 1106: Tooth Proportions for Plastic Gears.

ANSI/AGMA 2101: Fundamental Rating Factors and Calculation Methods for Involute Spur and Helical Gear Teeth.

ANSI/AGMA 2116: Evaluation of Double Flank Testers for Radial Composite Measurement of Gears.

ANSI/AGMA 6008: Specifications for Powder Metallurgy Gears.

Additional information on AGMA technical committees, including a scope of their activities, can be found in the Technical Committees section of the AGMA website, To join AGMA technical committees, or ask questions about standards and information sheets, please contact the AGMA Technical Division at

The expert knowledge, meticulous attention to detail, and consensus-building skills of our volunteer members who work hard in the background to develop the standards often goes unnoticed. The benefits of their work, however, are front and center to the gear industry and gear users every day. For all the valuable contributions of our committee members to help the gear industry and gear users everywhere, we thank you!

Technical Committees

Aerospace Gearing Committee
Chair: Thomas Doubts, GE Aviation

The Aerospace Gearing Committee determines special considerations required for gears used in manned and unmanned aircraft, rockets, and missiles, as well as for the guidance and data systems used for control of the same.

Bevel Gearing Committee
Chair: Bob Wasilewski, Arrow Gear

The Bevel Gearing Committee evaluates the materials, design, manufacturing, and application of bevel gearing. This committee does not work on documents that discuss the inspection of bevel gears.

Cutting Tools Committee
Chair: John Brunner, Rexnord Gear Group

The Cutting Tools Committee evaluates the tools for producing gear teeth, such as hobs, shaper cutters, grinding wheels, etc. The committee maintains a relationship with the organizations involved directly with such tools to stay up-to-date with their activities.

Enclosed Drives for Industrial Applications Committee
Chair: Todd Praneis, Cotta Transmission Company, LLC

The Enclosed Drives for Industrial Applications Committee evaluates the design, rating, and application of enclosed drives in which helical, herringbone, or spiral bevel gears are the principal form of gearing.

Epicyclic Enclosed Drives (Planetary) Committee
Chair: OPEN

The Epicyclic Enclosed Drives Committee evaluates the design, rating, and application of enclosed drives employing epicyclic (planetary) gear arrangements.

Fine-Pitch Gearing Committee
Chair: Jodi Bello, Apex Tool Group

The Fine-Pitch Gearing Committee evaluates design considerations, tooth forms, and other aspects of fine-pitch gears (spur and helical) and face gears that must be treated in a different manner from coarse-pitch gears.

Flexible Couplings Committee
Chair: Todd Schatzka, Rexnord Innovation Center

The Flexible Coupling Committee evaluates the design, rating, and application of mechanical connectors for transmitting torque without slip, and for accommodating misalignment between axially oriented rotors.

Gear Accuracy Committee
Chair: Steve Lindley, Rexnord Gear Group

The Gear Accuracy Committee develops the AGMA classification systems covering quality, measurement methods, inspection equipment, and master gear specifications used in the inspection of gears. The classification systems developed by the Gear Accuracy Committee facilitate effective and efficient communication between designers, manufacturers, and customers.

Helical Enclosed Drives High Speed Units Committee
Chair: John B. Amendola Sr., Artec Machine Systems

The Helical Enclosed Drives: High Speed Units Committee evaluates the design, rating, and application of enclosed helical gear drives where the pitch line velocity exceeds 7,000 rpm, or pinion speed exceeds 4,500 rpm.

Helical Enclosed Drives Marine Units Committee
Chair: Dick Calvert, Chalmers & Kubeck

The Helical Enclosed Drives: Marine Units Committee evaluates the design, rating, and application of enclosed drives, in which helical gears are the principal form, for propulsion and ship service generator sets.

Helical Gear Rating Committee
Chair: Frank Uherek, Rexnord Gear Group

The Helical Gear Rating Committee determines strength and durability rating of spur and helical gears.

Lubrication Committee
Chair: Bill Hankes, A-C Equipment Services

The Lubrication Committee works on the description, and application, of lubrication of open and enclosed gear sets, and creates guidelines for minimum performance characteristics for lubricants suitable for use in general power transmission applications.

Metallurgy and Materials Committee
Chair: Carl Ribaudo, Timken Company

The Metallurgy and Materials Committee evaluates the materials and the heat-treatment processes used in gear manufacturing.

Mill Gearing Committee
Chair: Gary A. Bish, Horsburgh & Scott Company

The Mill Gearing Committee evaluates the special considerations required for helical and herringbone gears used to drive cylindrical grinding mills, kilns, dryers, and metal rolling mills.

Nomenclature Committee
Chair: Dwight Smith, Mitsubishi Heavy Industries America, Inc.

The Nomenclature Committee develops definitions, symbols, terms, etc., for all elements and types of gears. Documents created by the Nomenclature Committee establish a common language for members of the gear industry to effectively and efficiently communicate with each other.

Plastics Committee
Chair: Ernie Reiter, Web Gear Services Ltd.

The Plastics Gearing Committee evaluates the material, design, rating, manufacturing, inspection, and application of molded or cut-tooth plastic gearing.

Powder Metallurgy Committee
Chair: Paul Crawford, Sintered Metal Consulting

The Powder Metallurgy Gearing Committee evaluates the materials, design, rating, manufacturing, inspection, and application of powder-metallurgy gearing.

Sound & Vibration Committee
Chair: Steve Rogan, Artec Machine Systems

The Sound and Vibration Committee evaluates the specifications and the methods of monitoring sound and vibration, as applied to gearing. The committee generally focuses on enclosed gear drives.

Spline Committee
Chair: Deanna Majchszak, Dana Inc.

The Spline Committee works on the development of a comprehensive set of standards on design, rating, accuracy, application, inspection, and maintenance of splines.

Vehicle Gearing Committee
Chair: Rick Platt, Allison Transmission, Inc.

The Vehicle Gearing Committee evaluates the special considerations required for gears used to propel ground-based vehicles.

Wind Turbine Gear Committee
Chair: Brent Reardon, Siemens Industry, Inc.

The Wind Turbine Gear Committee is a joint committee with the American Clean Power Association that develops gear standards used in the production of wind energy.

Wormgearing Committee
Chair: Martin Peculis, Cleveland Gear Company

The Wormgearing Committee evaluates all aspects of cylindrical and globoidal wormgearing, including design, rating, application of enclosed drives, and their inspection.

Calendar of events

March 22-24 — Gearbox CSI — Concordville, Pennsylvania

March 31-April 2 — AGMA/ABMA Annual Meeting — Palm Beach Gardens, Florida

April 4-8 — Basic Training for Gear Manufacturing — Chicago, Illinois

April 12 — Gear Nomenclature Meeting — WebEx

April 14 — Gear Accuracy Committee Meeting — WebEx

April 19-21 — Fundamentals of Gear Design and Analysis — Clearwater Beach, Florida

May 12 — Design Basics for Spur and Helical Gears — WebEx

May 12 — Gear Nomenclature Meeting — WebEx

May 17-19 — Gear Manufacturing and Inspection — St. Augustine, Florida

May 24 — Metallurgy and Materials Committee Meeting — WebEx

May 26 — Bevel Gearing Committee Meeting — WebEx