Factory Direct Sale NEMA 17 0.45Nm Hybrid Stepper Motor for 3D Printer

This product is a high-performance two-phase stepper motor with a step angle of 1.8°±5%, delivering precise motion control for automation equipment, 3D printing, CNC machining, and other precision applications.

Key Specifications

• Rated Voltage: 3.9V

• Rated Current: 1.3A

• Phases: 2

• Resistance: 3.0Ω ±10% (at 25°C)

• Inductance: 5.1mH ±20% (at 1kHz, 1Vrms)

• Holding Torque: 0.45N·m (61oz·in)

• Rotor Inertia: 82g·cm² (0.45oz·in²)

• Allowable Thrust Load: 10N

• Allowable Radial Load: 21N (on shaft end)

Electrical Performance

• Dielectric Strength: 500V AC (1 minute)

• Insulation Resistance: 100MΩ (1 minute)

• Insulation Class: Class B

• Temperature Rise: ≤80K (max.)

Environmental Durability

• Operating Ambient Temperature: -20°C to +50°C

• Operating Ambient Humidity: 15% to 90% (non-condensing)

• Service Life: 5000 hours

Mechanical & Safety Features

• Net Weight: Approx. 280g (9.8oz)

• Dielectric & Insulation Compliance: Meets industry safety standards