•Size: 42.3 mm square × 38 mm, not including the shaft (NEMA 17)
•Leadscrew: Tr 8 × 8(P2)
•Steps per revolution: 200
•Linear step size: 40 µm (1.6 mil) per full step
•Current rating: 1.68 A per coil
•Voltage rating: 2.8 V
•Resistance: 1.65 O per coil
•Holding torque: 3.7 kg-cm (51 oz-in)
•Inductance: 3.2 mH per coil
•Lead length: 16 cm (6.5?)
•Output shaft supported by two ball bearings