Wednesday, October 25 - 8:00 am - 12:00 pm
This education event will be held in conjunction with Gear Expo. Registration for this event must be made through the Gear Expo website. Each full registrant will receive a free pass to the Show Floor.
Explore just what High Profile Contact Ratio (HCR) gears are and under what circumstances they can be an advantage. Learn when HCR gears are not appropriate and why. This fast paced session will cover the detailed tooth geometry changes that are required to effectively achieve optimum performance and benefit. We will discuss how the load distribution along the involute profile changes when the contact ratio increases above two. Because of the longer, generally more slender teeth on a HCR gear the heat treatment and profile modifications that are required for good performance are distinctly different from those for a standard contact ratio gear. The load capacity rating of HCR gears requires the application of modified AGMA analyses as the AGMA Standards specifically do NOT address gears with profile contact ratios greater than 2.0 thus we will also cover the changes required to successfully rate HCR gears.
Greater Columbus Convention Center
400 N. High Street
Columbus, OH 43215
Rooms have been reserved for Gear Expo 2017 at the following venues:
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.