This is a single shaft bipolar 640oz-in Nema 34 Stepper Motor.
Model Number: 4H280-60-4A
Specifications
Size: Nema 34
Phase: 2 Phase
Step Angle: 1.8 Degrees
Voltage: 80V Max
Phase Voltage1.8VCurrent: 6AResistance: 0.3 ohm/phaseInductance:3.0 mH/phaseHolding Torque:420 N.cmSingle ShaftBipolar 4 Wire
Physical Dimensions
Shaft: 12.7mm (1/2")
Length: 90mm
Height: 86mm
Width: 86mm
Wiring
AWG 18Red > A+
Green > A-
Yellow > B+
Blue > B-