Behind every hydrostatic spindle or table sits a pump station, multi-stage filtration, and a control loop. Understanding this architecture explains both the capability and the care the technology needs.
Подшипник — вершина айсберга. Насос 1–10 МПа, фильтры NAS 5, контур держит температуру и давление.
Масло от насоса через фильтр и термостат идёт в карманы через дроссели, адаптируя давление к нагрузке.
Поэтому системы дороже и требуют ухода, но дают то, что пассивные подшипники не могут.
Ổ chỉ là phần nổi. Bơm 1–10 MPa, lọc NAS 5, vòng điều áp và nhiệt.
Dầu từ bơm qua lọc, nhiệt rồi vào hốc qua van tiết lưu tự chỉnh áp theo tải.
Nên hệ đắt và cần chăm sóc, nhưng cho thứ ổ thụ động không thể.
Le palier n'est que la pointe. Pompe 1–10 MPa, filtres NAS 5, boucle de pression et température.
L'huile va de la pompe via filtre et thermostat aux cavités par restrictieurs auto-adaptatifs.
Donc plus cher et exigeant, mais donne ce que les paliers passifs ne peuvent pas.
Das Lager ist nur die Spitze. Pumpe 1–10 MPa, Filter NAS 5, Regelkreis für Temperatur und Druck.
Öl geht von der Pumpe über Filter und Thermostat zu den Taschen über lastangepasste Drosseln.
Daher teurer und pflegebedürftig, liefert aber was passive Lager nicht können.
A hydrostatic bearing cannot work on its own—it is the visible tip of a subsystem. A pump station raises oil to 1–10 MPa, multi-stage filters clean it to NAS 5, and a control loop holds temperature and pressure steady before the oil reaches the restrictors and cavities.
Oil leaves the pump, passes filtration, is conditioned for temperature, then splits to each cavity through a restrictor that adapts pressure to load. The film that results is an actively managed pressure field, not a passive cushion.
This architecture is why hydrostatic systems cost more upfront and need disciplined maintenance—but it is also why they deliver stiffness, accuracy, and life that passive bearings cannot match. Marusaku designs the table or spindle and its oil supply as one engineered system.
