Front Ball Bearing: It keeps high speed rotating and good accuracy under medium load
Middle Thrust Ball Bearing: The bearing with hardened frame give good rigidit and accuracy which strength the ability on axial for medium load
Rear Ball Bearing: The rear bearing strengths the ability of radial load
Center spindle is made of high quality alloy tool steel, flame hardened to HRC 62, which keeps good rigidity and wearability
Sealing ring located in front of the bearing system to prevent coolant and other scraps from leaking in and greatly enhance the live center's tool life