C-TE - Cylindrical Gear Metrology

Three days. A tour and demonstrations are conducted at the Gleason Metrology Systems facility in Dayton, Ohio, so attendees can see the practical applicability of what they've learned. Also included is a tour of the GMS Calibration Lab, the
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This comprehensive three (3) day program provides a solid introduction for those new to the gear industry as well as an excellent review for experienced technologists.  The Basic Gear Metrology module focuses on the involute helicoid system that is widely used for cylindrical gears and splines.  Composite and elemental measurement methods are described and contrasted.  Categories, causes, and consequences of gear accuracy errors are discussed.

The Calibration and Metrology module explores the subject of measurement validity beginning with discussion of important but often overlooked metrology issues.  New traceability and calibration concepts are outlined.  An introduction to statistical estimation of measurement uncertainty is included.

The Gear Accuracy Standards module brings participants up to date with the recent changes in important AGMA and ISO documents.

A Spline Measurement Module can also be included in the program.

Training groups are kept small so that individual concerns may be fully addressed.


  • 175GMS® Gear Inspection Machine
  • 350GMS® Gear Inspection Machine
  • 475GMS® Gear Inspection Machine
  • 650GMS® Gear Inspection Machine
  • 1000GMS® Gear Inspection Machine
  • 1500GMS® Gear Inspection Machine
  • 2000GMS® Gear Inspection Machine
  • 3000GMS® Gear Inspection Machine
  • 300GMS® Gear Inspection Machine
  • Gear Types and Categories of Inspection
  • Single- and Double-Flank Composite Testing
  • Involute Profile
  • Helix (a.k.a. Lead or Tooth Alignment)
  • Single Pitch, Cumulative Pitch, and Runout
  • General Nomenclature and Elementary Math
  • New Calibration and Traceability Concepts
  • Measurement Uncertainty Estimation
  • Measurement Process Fitness for Use Decisions
  • AGMA Gear Accuracy Standards, Old and New
  • Profile and Helix analysis methods
  • Plant Tour
  • Individual Instruction and Specific Problems