Online Video Courses

Gear Failure Analysis, Detailed Gear Design, and Gearbox CSI: Gears Only are intended to provide an experience that closely resembles the courses that are offered in the Face-to-Face format. You will have 60 days to complete the course, pass the course assessment, and receive your certificate.

  • Gear Failure Analysis Online Video Course

     2 credits offered

    In the Gear Failure Analysis online video training, you will examine the various types of gear failure, such as overload, bending fatigue, Hertzian fatigue, wear, scuffing and cracking. Possible causes of these failures will be presented, along with some suggested ways to avoid them. 2.0 CEUs

    Taught by expert gear failure analyst, Robert Errichello, P.E., of GEARTECH, students get the experience of the course through 11 segments consisting of a total of 10 hours of in-depth discussion of gear failure modes and supporting training documents. Gear Failure Analysis teaches students the causes of gear failure and how to prevent it from occurring. Avoiding gear failure can save thousands of dollars in repair costs!

    In AGMAs Gear Failure Analysis online video training, you will examine the various types of gear failure, such as overload, bending fatigue, Hertzian fatigue, wear, scuffing and cracking. Possible causes of these failures will be presented, along with some suggested ways to avoid them.

    Bob Errichello uses a variety of tools and methods lectures, slide presentations and Q&A sessions to give you a comprehensive understanding of the reasons for gear failure. The video presents a vast amount of knowledge not available elsewhere and is presented in a clear, well organized and easily understood manner.

    Through generous support from the AGMA Foundation, AGMA has recorded the popular Gear Failure Analysis live course for wider availability. 

    2.0 CEUs

    Robert Errichello

    President, GEARTECH

    Robert Errichello heads his own gear consulting firm, GEARTECH, and is founder of GEARTECH Software, Inc. He is a registered Professional Engineer who holds BS and MS degrees in Mechanical Engineering and a Master of Engineering degree in structural dynamics from the University of California at Berkeley. Mr. Errichello helped to introduce the world’s first gearing standard for wind turbines and is very active in AGMA standards development and nomenclature. He has extensive teaching experience and has taught college courses on machine design, fracture mechanics, vibration, and material science. He has over 40 years of industrial experience, is author of more than 60 articles on design, analysis, and application of gears, and has written three widely-used computer programs for the design and analysis of gears. Mr. Errichello is a recipient of AGMA’s prestigious Lifetime Achievement Award and an expert in Failure Analysis. 

  • Detailed Gear Design Online Video Course

     2 credits offered

    Taught by gear expert, Ray Drago, P.E., of Drive Systems Technology, Inc. Students can get the full experience of the course through 19 one-hour segments and supporting training documents. Detailed Gear Design provides students with an overview of factors that go into good gear design from life cycle, load, torque, tooth optimization, and evaluating consequences then walks students through carefully crafted "problems" that will demonstrate the practical application of the optimization methods presented in this seminar. 2.0 CEUs

    Detailed Gear Design provides students with an overview of factors that go into good gear design from life cycle, load, torque, tooth optimization, and evaluating consequences then walks students through carefully crafted "problems" that will demonstrate the practical application of the optimization methods presented in this seminar. Taught by gear expert, Ray Drago, P.E., of Drive Systems Technology, Inc. Students can get the full experience of the course through 19 one-hour segments and supporting training documents. 

    After taking this course, you will be able to:

    • Improve your gear designs
    • Better understand gear rating theory and analysis methods
    • Investigate differences in stress states among various surface durability failure modes
    • Discuss time dependent and time independent failure modes related to tooth design
    • Use computer generated graphics to examine mesh action and tooth interaction
    • Gain new insight into the concepts presented through illustrations and demonstrations

    Through generous support from the AGMA Foundation, we have recorded the popular Detailed Gear Design live course for wider availability.

    2.0 CEUs

    Raymond Drago, P.E.

    Chief Engineer - Gear Technologist, Drive Systems Technology

    Raymond J. Drago is Chief Engineer of Drive Systems Technology, Inc. (DST), a mechanical power transmission consulting organization that he founded in 1976. Prior to this, Mr. Drago worked for the Boeing Company – Helicopters Division until his retirement after 37 years of service. Currently Mr. Drago is involved in the analysis, design, manufacture, assembly, and testing of many gear systems. In his role with DST, Mr. Drago is active in all areas of mechanical power transmission, including the design and analysis of drive systems in a very diverse field of application from heart pumps to very large mining & mill gears. He has also prepared and delivered more than 150 seminars dealing with various aspects of gear design and analysis.

  • Gearbox CSI: Gears Only

     2.8 credits offered

    This is webinar focuses on the gear part of the Forensic Analysis of Bearings and Gear course. It helps gear designers gain a better understanding of various types of gears. This is a four-part series where you will learn about properly applying the best gear-bearing combination to any gearbox, simple or complex.

    This is webinar focuses on the gear part of the Forensic Analysis of Bearings and Gear course. It helps gear designers gain a better understanding of various types of gears. This is a four-part series where you will learn about properly applying the best gear-bearing combination to any gearbox, simple or complex. 

    At the end of this series you will be able to:

    • Apply their understanding of forensic analysis of gearbox failures in future gearbox designs
    • Discuss bearing and gear types
    • Explain how bearing selection is influenced by gear type and loading
    • Select appropriate bearing types and configurations as influenced by gear type and loading
    • Explain how to optimize bearing and gear combinations
    • Identify seven material and manufacturing related defects


    You have 60 days to complete the course. 

    Raymond Drago, P.E.

    Chief Engineer - Gear Technologist, Drive Systems Technology

    Raymond J. Drago is Chief Engineer of Drive Systems Technology, Inc. (DST), a mechanical power transmission consulting organization that he founded in 1976. Prior to this, Mr. Drago worked for the Boeing Company – Helicopters Division until his retirement after 37 years of service. Currently Mr. Drago is involved in the analysis, design, manufacture, assembly, and testing of many gear systems. In his role with DST, Mr. Drago is active in all areas of mechanical power transmission, including the design and analysis of drive systems in a very diverse field of application from heart pumps to very large mining & mill gears. He has also prepared and delivered more than 150 seminars dealing with various aspects of gear design and analysis.