39mm stepping motor, NEMA 16 stepping motor, CE and ROHS hybrid stepper motor, NEMA 16, Frame size 39mm, CE and ROHSModel No.RatedVoltageCurrent/PhaseHoldingTorque# of ... :Torque: 2.5 to 5,700 Ounce-InchesStep Angle:1.8 and 0.9,3.6 Degree,Square-Bodied, High-Torque Stepper ... well.Nema Size: NEMA 08, 11, 14, 15, 17, 23, 24, 34 and 42Frame size: 20mm, 28mm, 35mm, 39mm, 42mm, 57mm, 60mm ...