The MQ150SU is a sealed unit version of the company’s popular MQ150, featuring an internal synthetic lubrication system and grease packed bearings for long life and operation in any position. The feed unit uses a ball screw on the center line of a hardened, precision, 55mm diameter quill. It is precision ground, pre-loaded with zero backlash. An involute spline driven spindle uses EP7 high precision bearings and the unit features an HSK-32C Spindle nose supplied connection with clamping cartridge assembly.