Gear Technology Design Unit



Design Unit: Our Services

UK National Gear Metrology Laboratory

In 1987, the UK National Gear Metrology Laboratory (NGML) was established in Newcastle. It is the UK’s Designated Institute (DI) for gear measurement and part of the UK’s National Measurement System supported by BEIS.

NGML supports gear manufacturers and gear users through:

  • an independent gear measurement service to verify the quality of product gears
  • gear artefact calibration, offering one of the lowest measurement uncertainties worldwide
  • an on-site gear measuring machine calibration service
  • reverse engineering expertise
  • training and education- short courses, seminars and bespoke training courses with the British Gear Association (BGA)
  • measurement consultancy
  • measurement research and support for gear research in the UK and Europe
  • ISO standards development

The laboratory facilities include:

  • Enhanced Klingelnberg P65 Gear Measuring Centre, used as the reference calibration and measurement machine
  • Zeiss WMM 850 CMM, updated by IMS Ltd
  • Taylor Hobson Form Talysurf 50 surface roughness and form measuring instrument
  • Alicona Infinite Focus G4 optical dimensional and surface roughness measurement
  • Hexagon Absolute Romer 7-Axis Arm 8520 with RS5 Laser Scanner
Design Unit: Metrology


NGML are accredited by the United Kingdom Accreditation Service (UKAS) to ISO 17025:2017 for the measurement and calibration of gears. We are traceable to primary calibration facilities at: