NEMA17 42HD4027-01 39.5mm 1.5A  Stepper Motor

Specifications:

• Motor Type: Bipolar Stepper Motor
• Model Number: 42HD4027-01
• Step Angle: 1.8° (200 steps per revolution)
• Holding Torque: 45N.cm (0.45 Nm)
• Number of Phases: 2
• Rated Current/Phase: 1.5A
• Phase Resistance: 2.7 ohms
• Inductance: 4.8 mH

Physical Dimensions:

• Frame Size: NEMA 17
• Body Length: 39.5 mm
• Shaft Diameter: 5 mm
• Shaft Length: 24 mm
• Mounting Holes: 31 mm (center-to-center)
• Lead Wire: 4 wires (Bipolar)

Electrical Specifications:

• Rated Voltage: 4.05 V
• Winding Type: Bipolar parallel
• Insulation Class: B

Performance Characteristics:

• Detent Torque: 2.2N.cm
• Rotor Inertia: 57 g.cm²
• Max Operating Temperature: 80°C
• Step Accuracy: ±5%

Applications:

Commonly used in 3D printers, CNC machines, robotics, and other precision motion systems.