Technikum: Laboratory for large gears

Optimization of large gear measurements

To calibrate large gears currently no appropriate standards exist, that allow the traceability of the test processes to the SI unit "meter" with sufficient accuracy. In close cooperation with the National Metrology Institute of Germany (PTB), BIMAQ therefore is involved in developing large gear standards with a diameter of 2000 mm and more.

Furthermore, BIMAQ analyzes the cause-effect relationships between gear manufacturing, geometric deviations and occurring gearbox damages. In the field of quality inspection of gears, algorithms are being developed in order to evaluate dimensional measurement data.

Technical specifications

Portal coordinate measuring machine Leitz PMM-F 30.20.7

  • Measuring volume: 3.0 x 2.0 x 0.7 m³
  • Measuring uncertainty: MPEE = ­­(1.3 + (L in mm)/400) µm
  • Workpiece mass: max. 6,000 kg
  • Rotary table: For rotation-symmetric components up to 3.0 m diameter

Air conditioning (maximum temperature gradients)

  • 0.4 K/h
  • 0.8 K/d
  • 0.2 K/m


  • Order/reference measurements
  • Calibration of reference standards
  • Analysis and evaluation of geometric deviations
  • Development of measurement and evaluation strategies
  • Software development

Contact Details

Axel von Freyberg
E-Mail: Enable JavaScript to view protected content.
Phone:+49 (0)421 218 646 10

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