Quick answers to the most common hydrostatic questions: does it need power, what oil cleanliness, can it run at low speed, how long does it last, and is it worth the cost?
Да — насос 1–10 МПа через дроссели. Поэтому работает на нуле оборотов с полной жёсткостью.
NAS 5+, плёнка 3–10 мкм. Фильтр ~500 ч.
Да, без ползучести — идеально для индексации.
Теоретически вечно: нет износа, точность стабильна.
Для сверхточности — да; для грубого — проще дешевле.
Có — bơm 1–10 MPa qua van tiết lưu. Nên chạy ở tốc 0 vẫn cứng.
NAS 5+, màng 3–10 μm. Lọc ~500 h.
Được, không bò — tốt cho index.
Gần vô hạn: không mòn, chính xác ổn định.
Siêu chính xác thì đáng; thô thì đơn giản hơn.
Oui—pompe 1–10 MPa via restrictieurs. D'où raideur même à zéro tour.
NAS 5+, film 3–10 μm. Filtre ~500 h.
Oui, sans rampement—idéal pour l'indexation.
Théoriquement infinie: pas d'usure, précision stable.
En ultra-précision oui; en gros rapide, plus simple suffit.
Ja—Pumpe 1–10 MPa über Drosseln. Darum volle Steifigkeit schon bei Null Drehzahl.
NAS 5+, Film 3–10 μm. Filter ~500 h.
Ja, ohne Kriechen—ideal zum Indexieren.
Theoretisch unendlich: kein Verschleiß, Genauigkeit stabil.
Bei Ultrapräzision ja; bei grob schnell evtl. einfacher.
Yes—an external pump supplies 1–10 MPa oil through restrictors. That pumped film is why it works even at zero speed with full stiffness.
NAS 5 or better, because the film is only 3–10 μm thick. Filters are serviced about every 500 hours.
Yes—unlike hydrodynamic bearings, hydrostatic support has no low-speed crawl, making it ideal for indexing and fine feed.
Theoretically infinite life: with no contact wear, accuracy and stiffness stay constant; limits are oil quality and care, not the bearing.
For ultra-precision, vibration-sensitive, or long-duty work, the accuracy, stiffness, and life usually justify the higher upfront and energy cost. For coarse, high-speed, cost-driven duties, a simpler bearing may be better.
