Chuck Type: Standard Er32 Collet 3~20mm (Hollow Shaft) 11 Pcs Complete Set Er32 Collet: （3mm,4mm,5mm,6mm,8mm,10mm,12mm,14mm,16mm,18mm,20mm） Center Height: 65mm Hollow Shaft Diameter: 21mm Angle: 0.3 Degree / Step Reduction Ratio: 6:1 (Synchronous Belt Deceleration Mode) Step Motor: 57 Phase Stepper Motor (Two-phase 4 Wire Current 3a ) Size: Length 180mm* Width 168mm*115mm Motor: 500rpm; Axis: 80rpm. Stepper Moter Specifications: Step Angle: 1.8°±5% Voltage: 4.2v Phase No: 2 Current: 3.0a Insulation Resistance: 100mohm(500v Dc) Inductance: 3.5±20 Mh Insulation Class:b Resistance:1.4±10 Ω Holding Torque:18kg.cm.
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