1.5KW 220V Air Cooled Er16 CNC Spindle Motor and 1.5kw 220v Vfd Variable Frequency Drive 1.5kw Air-cooled Motor Spindle and Matching Inverter Four bearing(2C7004+2*C7002) in our spindle motor 1.5kw Air-cooling High Speed High Precision Spindle Motor Numerical Engraving/grinding/milling Air-cooled Er16 Collet Chuck