This is a hybrid stepping motor with 2-phases and 4-wire bipolar windings.

General Specification:

Shaft Diameter: 6.35mm (1/4") with flat face

Step Angle: 1.8° (200 step/rev)

Motor Length: 64 mm

Rated Current: 4.2 Amps per phase

Phase Resistance: 0.55 ohms

Phase Inductance: 1.2 mH

Holding Torque: 212 oz-in / 150 N.cm / 15.3 kg.cm

Detent Torque: 5 N.cm max

Rotor Inertia:380 g.cm²

Weight: 850g

Wiring:

Black: A+

Green:A-

Red:B+

Blue:B-

Step angle accuracy: ±5%(full step,no load)

Resistance accuracy: ±10%

Inductance accuracy: ±20%

Temperature rise: 80°C Max(rated current,2 phase on)

Ambient temperature: -20° ~ +50°C

Insulation resistance:100MΩ Min,500VDC

Insultion Strength: 500VAC for one minute