NEMA 17 Stepper Motor 42BYGH40
EGP 375
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NEMA 17 Stepper Motor 42BYGH40 The 42BYGH40 is a two-phase bipolar hybrid motor featuring a 1.8° (200 steps/rev) step angle and a 40 mm motor length. It draws 1.5 A per phase with phase resistance 2 Ω (±10%), has phase inductance 3 mH – 3.2 mH (±20%), and produces 0.4 Nm holding torque. Equipped with a 5 mm D-type shaft, the motor offers insulation resistance ≥ 100 MΩ @ 500 VDC and dielectric strength 500 VAC for 1 min. It supports continuous operation with temperature rise ≤ 80 °C, operating ambient –20 °C to +50 °C, storage –20 °C to +70 °C, and utilizes a standard 4‑lead bipolar wiring configuration. Features 1.8° (200 steps/rev) step angle with ±5 % accuracy. Bipolar 2-phase (4‑lead) microstepping-compatible wiring. Rated current 1.5 A per phase. Phase resistance 2 Ω (±10%). Phase inductance 3 mH – 3.2 mH (±20%). Holding torque 0.4 Nm. 5 mm D-type shaft for secure coupling. High insulation (≥ 100 MΩ @ 500 VDC) and dielectric capability (500 VAC / 1 min). Designed for continuous duty with ≤ 80 °C rise in –20 °C to +50 °C ambient. Specifications Parameter Value Model 42BYGH40 Step Angle 1.8° (200 steps/rev) Step Accuracy ±5 % Phases 2 (bipolar, 4‑wire) Rated Current 1.5 A/Phase Phase Resistance 2 Ω (±10 %) Resistance Accuracy ±10 % Insulation Resistance ≥ 100 MΩ @ 500 VDC Phase Inductance 3 mH – 3.2 mH (±20 %) Inductance Accuracy ±20 % Holding Torque 0.4 Nm Detent Torque 0.016 Nm Rotor Inertia 350 g·cm² – 450 g·cm² Temperature Rise ≤ 80 °C Ambient Temperature Range –20 °C – +50 °C Storage Temperature Range –20 °C – +70 °C Dielectric Strength 500 VAC for 1 min Number of Leads 4 Motor Length 40 mm Shaft Diameter 5 mm D‑type Torque vs Speed Applications 3D printer extruder and motion axes. Mini CNC routers and desktop milling machines. Robotics and automated mechanisms. Camera sliders and precise positioning systems. Hobbyist and educational motion-control platforms. Package Contents 1x NEMA 17 Stepper Motor 42BYGH40. 1x 50cm 4-wires connection cable.
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