Start early in the wheel spindle form a film, and is not affected wheel spindle speed

Hydrostatic bearing advantages: start early in the wheel spindle to form a film, and is not of wheel spindle speed; bearing 4 has a shape so that the spatial position of the oil chamber opposite to form a high rigidity with preload systems. Dynamic  cubic boron nitride  than the gap width allowed; with automatic adjustment device so that the oil has a high  grinding wheel  of absorption of thermal expansion (which can absorb 40% to 60% of calories); film formation is not dependent on the oil wedge angle formation, therefore, by the lower shaft of ellipticity; constant bearing preload, the result is no additional adjustments to maintain accuracy and long-term; startup and normal operation when power is small.