Air Cooled Spindle Motor ER20 CNC Spindle Milling Motor 2.2KW Spindle Motor 24000 RPM 400 Hz for CNC Router Engraving Milling Grind Machine（220V） Dynamic Balance Design Four High-quality Bearings Noise Reduction and Air Cooling Premium Material Refined Internal Details Wide Application Maximum Torque: 1.7NM,Speed: 12000-24000 R/min,Product Dimension: 3.1 x 11.8 in / 8 x 29.9 cm,Voltage: 220V,Frequency: 200-400 Hz,Runout off: Less than 0.002 mm,Power: 2.2 KW,Weight: 13.2 lbs / 6 kg
