Balanced against vibration, 50 taper spindle of Model HSP550 carries 30 hp rating and spins at 14,000 rpm on lubricant-cooled ceramic bearings. Machining center achieves 1,890 ipm travel on X and Y axes, and 2,390 ipm on Z axis. Roller packs on X, Y, and Z axes exploit dowel bearings, which maintain greater surface contact than ball bearings, yielding higher rigidity and vibration dampening.