Key Takeaways:
Hydrostatic technology brings a pump, filtration, controls, and higher upfront cost plus leakage risk and stricter maintenance. Selection should weigh precision gains against system complexity.
The Full Picture
Hydrostatic support is not free. Beyond the bearing itself, it requires a pump station, filtration, temperature and pressure control, and an oil supply network. Initial investment is higher than for rolling-bearing machines, energy use is ongoing, and there is a potential oil-leakage risk plus stricter maintenance (cleanliness, temperature, film monitoring).

When the Trade-Off Pays
The gains—sub-micron runout, 5–10× stiffness, no crawl, infinite life, oil-film damping—are decisive for ultra-precision, vibration-sensitive, and long-duty applications. Here the higher cost is justified by capability and by avoiding scrap and downtime.
Selection Advice
Choose hydrostatic where accuracy, stiffness, and life are the binding constraints. For coarse, high-speed, cost-driven duties, a simpler bearing may be the better economic choice. Marusaku helps match the right technology to the process rather than over-specifying.