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Webinar (Archived)
8 February 2012, 1:00pm – 2:30pm

Design and Development Procedure for High-Precision Molded Plastic Gear Transmissions

PRESENTER: David Sheridan, Senior Design Engineer, Ticona Engineering Polymers

David Sheridan is senior design engineer at Ticona Engineering Polymers, a business of Celanese Corporation. He has been involved with the design and analysis of plastic parts for over 24 years and plastic gearing for the past 15 years. He is also an active member of the American Gear Manufacturers Association Plastics Gearing Committee.


  • Designers and project managers for plastic gear transmissions
  • Purchasers, customers, or specifiers of plastic gear transmission components
  • Molders or mold makers of plastic gears and housings

This session will discuss high-precision molded plastic gear transmission design and development. 


Attendees will gain:

  • Understanding of preferred gear types and arrangements for plastics
  • Calculation equations for determining the full range of dimensional effects from tolerances and environmental influences.
  • Understanding of design and molding influences on dimensional stability.


  • Gear types and arrangements for plastics
  • Gear tooth geometry and specifications that produce functional gears for all operating conditions, the entire range of tolerances, and environmental influences on dimensions
  • High-precision gear molding and mold making
  • Design and engineering
  • Prints and specifications
  • Prototype parts and mold development
  • Measurement and inspection
  • Testing and validation
  • Production molding
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