Features: can withstand high axial force; with the speed of the spindle bearing; high stiffness; can only carry axial load, unable to bear radial load. The axial stiffness and radial stiffness often changes to the requirement of machine tool in the bearing arrangement. In order to achieve the highest possible machining accuracy, high basic stiffness value is an important indicator.
Main shaft bearing arrangement in machine tool is very demanding. They must have high carrying capacity and fit for high speed at the same time. Generally, the improvement of bearing capacity will reduce the highest speed. By using the new thrust bearing, it is possible to satisfy the two requirements at the same time.