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  • Gearbox CSI: Gears Only

    Includes Credits

    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.

  • How to Read and Interpret a Gear Inspection Report

    Includes Credits Recorded On: 09/28/2017

    This webinar is intended to provide you with a thorough understanding of the information contained within a typical gear inspection report.

  • Troubleshooting of Gearboxes

    Includes Credits

    The objective of this webinar is to examine the basics for troubleshooting gearbox problems. The presentation will define the main problem areas for gearing and gearboxes including vibration; heat generation; noise alignment; wear on gearing, bearings seals and gearbox casing; lubrication; and then failures. Each set of problems will have causes and possible solutions provided.

  • Information Technology & Physical Risk Threats and Solutions

    Includes Credits

    This presentation seeks to educate the attendees about the various IT and Physical Security risks that affect their businesses. In addition, it provides preliminary exposure to business interruption considerations and how they affect a business.

  • Contact Stresses

    Includes Credits

    This webinar will cover the stresses that result in gear tooth contact, including Hertzian contact stress theory, and point and line contacts. Professor Schmid will also extend the discussion to cover elliptical contact and the application to gears.

  • Technical Overview of Automotive Differentials

    Includes Credits

    This webinar intends to provide an insight into automotive differential technologies; specifically the intended function, issues with the common differential types (i.e. open differential), the concept of traction aiding differentials and the difference between passive mechanical and active electronic, and finally an over the design requirements and common manufacturing nuances specific to differential gears.

  • How to Spec a Gear

    Includes Credits

    This course will outline the data necessary to specify a gear set covering the key answers that the gear manufacturer needs to know prior to design and manufacturing.

  • Common Gear Material Inspection Methods

    Includes Credits

    Gear quality is of utmost importance to a manufacturer. Presented in this webinar are several commonly used gear inspection methods to ensure the quality of a gear from the raw material through to the final manufactured form. Discussed are methods of assuring the quality of: raw material (cast or billet), heat treatment (whether forged, quench and tempered, carburized induction hardened or nitrided) and final net shape formation (welding, machining and fine finishing). Students will be able to assess the accuracy of the current methods used or possibly find newer, less expensive methods for assessing the quality of their gears.

  • Gear Designs Stepchild: Root Fillet Configuration

    Includes Credits

    This webinar will address the design details and pitfalls related with the gear tooth fillet configuration NOT just the fillet radius specification. Often this parameter is not specified at all or only minimally noted on the engineering drawing. In fact, it is one of the most important factors in determining the actual bending strength of the gear tooth. In this regard, we will discuss the various types of fillet forms including full trochoidal, corner radius trochoidal and full circular. Superimposed on these is the complicating detail of undercut which is developed either unintentionally due to tooth number and pressure angle conditions or intentionally to allow finishing the tooth flanks only (i.e. by flank grinding, lapping, honing, hard cutting, etc.) without creating a step in the critical section region. The very powerful effect of the fillet configuration will be demonstrated by actual calculation using various fillet configurations for the same basic tooth configuration. We will see that the specifics of the fillet configuration can affect the tooth strength by 50% or more. In addition, we will also address the actual deleterious effects of a step at the root upon tooth bending fatigue strength. This effect is a function of the location, depth and radius at the corner of the step and can vary greatly. To implement this knowledge, we will close with a presentation of the proper drawing call out for complete fillet configuration control that will insure maximum and more importantly, consistent and repeatable tooth bending strength.

  • Gear Microgeometry Based Load Distribution for Gear Noise, Dynamics and Design Assessments

    Includes Credits

    This webinar will demonstrate techniques for using the gear microgeometry to minimize noise excitations and also to evaluate the gear contact stresses, bending stresses and tribological factors such as film thickness and flash temperature. The gear pair used in this study is the high speed ratio of the NREL-GRC wind turbine gearbox. In addition to the load distribution analysis, we shall explore ways of using load distribution analysis to come up with new macrogeometries that perform as well or better than the original design. Finally, a simple dynamic analysis of the gear set will be performed to observe the response of various natural frequencies to a transmission error excitation.