Key Takeaways:
Air (aerostatic) bearings are cleaner and faster; liquid hydrostatic bearings carry more load, stiffer and damp vibration better. The right choice depends on load, stiffness, and contamination risk.
两 Clean, 无接触 Options
Both 静压 (液体)与aerostatic (air) 轴承 float moving part without contact, avoiding wear. They differ sharply在what they optimize.

空气轴承 Strengths
Aerostatic 轴承 use compressed air—exceptionally clean, almost no temperature rise,与capable的very high speed. Their weaknesses为lower 承载能力与刚度, plus risk的'air-hammer' instability under certain conditions.
静压 Strengths
液体 静压 轴承 carry far higher loads, deliver 5–10× 滚动-轴承 刚度 (above 500 N/μm),与damp 振动 strongly thanks以 油膜. They suit heavy, precise, 振动-sensitive work.
Decision 指南
Choose air 轴承用于ultra-clean, high-speed, light-load duties (e.g., some metrology). Choose 静压用于heavy, stiff, accurate, 振动-damped duties—磨削, 车削, 回转 tables,与精度 齿轮 切削.