Equipped with professional stepper motor nema 42 series factory,Website:http://www.hybridservo.com, Shenzhen ECON Technology Co.,Ltd is a leading stepper motor nema 42 series manufacturer and supplier.Technique FeatureInsulation resistance 500VDC100MΩ MinInsulating strength 500VAC 50Hz 1mA 1 MinEnvironment temperature -20~+40ºCTemperature rise 80ºC MaxInsulation grade BDimensionModelShaft diameter (mm)Shaft extension(mm)Shaft Length(mm)QL31112A19Flatkey 6x2538QL31115A19Flatkey 6x2538QL31118A19Flatkey 6x2538QL31122A19Flatkey 6x2538Technical DataModelHolding torque(N.M)Current/Phase (A)Resistance (Ω)Inductance (MH)Rotary inertia(g.cm2)Length (MM)Weight(Kg)LeadThe matcheddriveQL31112A83.03.151760001135.23DH3422MAQL31115A133.04.222.697201506.63DH3422MAQL31118A165.02.1417.5135601839.03DH3722MAQL31122A205.02.424.41740022011.13DH3722MATorque-speed curve Voltage:220VAC Drive:DH3722MAMotor wiring