Description:<br />JKM NEMA17 Two Phase 42mm Hybrid Stepper Motor 1.8Degree 1.0A 40mm Length For CNC Router<br /><br />Specification:Brand: JKM<br /><br />Model Number: JK42HS40-1004YAL<br />Motor length: 40mm<br />Boundary Dimension:42*42mm<br />Size: 42mm x 42mm x 40mm<br />Diameter of axle: 8mm<br />Holding Torque: 4.8Kg.cm<br />Length of axis: 290mm・Tr8*2(Pitch)<br />Certification:  CE<br />Scope: 3D Printers・ Monitor Equipment・ Medical Machinery・ Textile Machinery・ Packaging Machinery・ Stage Lighting・ect.<br /><br />Genaral Specification:<br />ItemSpecificationsStep Angle1.8&amp;deg;Temperature Rise 80≦maxAmbient Temperature -20≦~+50≦Insulation Resistance100 M&amp;Omega; Min. ・500VDCDielectric Strength500VAC for 1minuteShaft Radial Play0.02Max. (450g-load)Shaft Axial Play0.08Max. (450g-load)Max. radial force28N (20mm from the flange)Max. axial force10N<br />Electrical Specification:<br />Model No.Step AngleMotor LengthRate<br />VoltageCurrent<br />/PhaseResistance<br />/PhaseInductance<br />/PhaseHolding Torque# of LeadsDetent TorqueRotor InertiaMass( &amp;deg;)(L)mmVA&amp;Omega;mHkg.cmNo.g.cmg.cmKgJK42HS40-1004YAL1.8403.901.03.98.94.8415054<br />0.40<br /><br />Note: Please allow 1-2mm error.<br /><br />