PT-3

vertical spindle rotational motion tribometer

  1. lower specimen
  2. upper specimen
  3. fiction torque transducer
  4. membrane spring
  5. journal of the spherical hydrostatic bearing
  6. cup of the spherical hydrostatic bearing
  7. plunger
  8. AC electric motor
  9. belt transmission
  10. hydrostatic thrust bearing
  11. spindle
  12. spindle rotational velocity transducer
  13. spindle radial hydrostatic bearings
  14. plunger radial hydrostatic bearings
  15. housing