... -4208B4.21.2581228Products Options:Torque: 2.5 to 5,700 Ounce-InchesStep Angle:1.8 and 0.9,3.6 Degree,Square ... -Bodied, High-Torque Stepper Motors. Round version, Standard stepper motors.Phase:2,3 ... and 42Frame size: 20mm, 28mm, 35mm, 39mm, 42mm, 57mm, 60mm, 86mm, 110mm, 130mm Nema 34 Hybrid Stepping Motor, Frame size 86mm, with different length and ...