Stepper motor OK57STH56-2804

This high-torque hybrid bipolar stepping motor has a 1.8° step angle (200 steps/revolution). Each phase draws 2.8 A at 2.5 V, allowing for a holding torque of 13 kg-cm (180 oz-in). The motor has four color-coded wires terminated with bare leads: black and green connect to one coil; red and blue connect to the other. It can be controlled by a pair of suitable H-bridges (one for each coil), but we recommend using an appropriately powerful bipolar stepper motor drive

Technical Specification

• torque:1.26Nm
• stepangle:1.8 degree
• Size: 56.4 mm square × 56 mm, not including the shaft (NEMA 23)
• Weight: 0.7 kg (25 oz)
• Shaft diameter: 6.35 mm (0.25″) “D”
• Steps per revolution: 200
• Current rating: 2.8 A per coil
• Voltage rating: 2.5 V
• Resistance: 0.9 Ω per coil
• Holding torque: 13 kg-cm (180 oz-in)
• Inductance: 2.5 mH per coil
• Lead length: 30 cm (12″)
• Output shaft supported by two ball bearings