Key Takeaways:
Oil viscosity and film geometry depend on temperature. Hydrostatic systems hold oil near 35±5°C (20±1°C ambient ideal) so the film stays dimensionally stable and accurate.
Temperature Shapes Film
Oil viscosity与therefore film thickness change采用temperature. If oil warms unevenly, film geometry shifts与精度 drifts. 静压 systems为设计以keep oil near 35±5°C,采用an ambient的20±1°C considered ideal.

How Stability Is Achieved
A temperature-controlled supply loop与 continuous flow的oil through cavities carry heat away evenly. film acts as thermal buffer, so localized heating from process does not deform 轴承.
为何 35±5°C
该 band balances low viscosity (for easy pumping)采用stable film geometry. Staying在band为what lets 静压主轴 or table hold sub-micron 精度 across full shift—unlike 摩擦-heated mechanical 轴承.