Key Takeaways:
Coordinate measuring machines need motion free of runout, vibration, and thermal drift. Hydrostatic guideways and spindles give CMMs the stable, repeatable motion their accuracy classes demand.
Measurement Demands Perfect Motion
A coordinate measuring machine's accuracy is only as good as the motion of its probe-carrying axes. Any runout, stick-slip, or thermal drift injects error into every measurement. Hydrostatic guideways and spindles remove those error sources by floating axes on oil films.

Stable, Repeatable Axes
The non-contact oil film gives sub-micron runout, no low-speed crawl, and excellent damping—so the probe path is smooth and repeatable. Oil flow also carries heat away evenly, preventing the thermal drift that plagues mechanical guides.
Result for Metrology
CMMs built on hydrostatic axes hold their calibrated accuracy longer and across wider temperature swings, reducing re-calibration frequency and improving trust in measured data.