NEMA 17 Integrated Closed Loop Stepper Motor 42BYGH40

Description

NEMA 17 Integrated Closed Loop Stepper Motor 42BYGH40 The 42BYGH40 combines a 42 × 42 mm flange and 40 mm stack with a built-in 1000 PPR incremental encoder, enabling closed-loop control to prevent missed steps and improve accuracy. It’s wound for 1.5 A per phase with 1.8 Ω (±10 %) phase resistance and 3.6 mH inductance, yielding 0.42 N·m holding torque. Features 1000 PPR (4000 CPR) encoder for closed-loop feedback. Rated current 1.5 A per phase, designed for reliable high-current operation. Phase resistance 1.8 Ω (±10 %) and inductance ~3.6 mH. Holding torque 0.42 N·m for robust static performance. Bipolar, two-phase (4‑wire) configuration compatible with standard stepper drivers. Closed-loop control reduces heat and improves efficiency compared to open-loop versions. Ideal for precision applications requiring feedback and torque stability. 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 1.8 Ω (±10 %) Resistance Accuracy ±10 % Insulation Resistance ≥100 MΩ @ 500 VDC Phase Inductance ~3.6 mH Inductance Accuracy ±20 % Holding Torque 0.42 Nm Number of Leads 4 Motor Length 40 mm Encoder Resolution 1000 PPR / 4000 CPR Shaft Diameter 8 mm D‑type Ambient Temperature Range –20 °C – +50 °C Temperature Rise ≤ 80 °C Applications Robotic arms, precision motion stages, and closed-loop CNC axes. High-accuracy 3D printers, pick-and-place systems, and medical instruments. Any application requiring reliable position feedback and torque stability. Package Contents 1x NEMA 17 Closed‑Loop Stepper 42BYGH40. 1x 50cm 8-wires encoder signal and connection cable.

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