The selection of super precision bearings P4 and above level

Mr. Chen Shiwei said that the radial spindle bearing beating, face runout, rolling body diameter inconsistent form and position error will affect the spindle system and its processing accuracy of parts is serious, so the accuracy of precision machine tool spindle bearing for the P5 and the superior, but for the spindle bearing of CNC machine tools, machining center and so on high speed and high precision machine tool and you need to use P4 and above level super precision bearings .