1. Center shaft & main body are made of alloy steel under heating treatment ot provide higher rigidity (HRC60° + 2°) and satisfied wear-resistance. 2. Center is constituted by thrust ball bearing needle roller bearings & ball bearings assembly. 3. Applicable to middle-speed & high-speed leathes with heavy load. ※BTYPE SUTABLE FOR SMALL-WORKPIECE MACHINING. |