NEMA 11 Stepper Motor 28BYGH50

From the shop's description

NEMA 11 Stepper Motor 28BYGH50 The 28BYGH50 is a two-phase bipolar hybrid motor with a 28 × 28 mm flange and a 50 mm stack, delivering 1.8° (200 steps/rev) resolution. It’s wired in a 4‑lead configuration and features a 5 mm D-type shaft. This version is wound for 1 A per phase with 4 Ω resistance, resulting in holding torque of approximately 0.17 Nm. Phase inductance is estimated at 5 mH – 6 mH, with insulation resistance ≥ 100 MΩ @ 500 VDC and dielectric strength 500 VAC for 1 min. It supports continuous operation with temperature rise ≤ 80 °C in ambient –20 °C to +50 °C environments. Features 1.8° (200 steps/rev) step angle with ±5 % accuracy. Bipolar, 2‑phase (4‑lead) microstepping-compatible wiring. Rated current 1 A per phase. Phase resistance 4 Ω. Phase inductance 5 mH – 6 mH. Holding torque 0.17 Nm. 5 mm D-type shaft for secure coupling. High insulation ≥ 100 MΩ @ 500 VDC; dielectric strength 500 VAC / 1 min. Continuous operation with ≤ 80 °C rise; ambient –20 °C – +50 °C. Specifications Parameter Value Model 28BYGH50 Step Angle 1.8° (200 steps/rev) Step Accuracy ±5 % Phases 2 (bipolar, 4‑wire) Rated Current 1 A/Phase Phase Resistance 4 Ω Resistance Accuracy ±10 % (typical) Insulation Resistance ≥ 100 MΩ @ 500 VDC Phase Inductance 5 mH – 6 mH Inductance Accuracy ±20 % Holding Torque 0.17 Nm Detent Torque ~0.03 Nm Rotor Inertia ~18 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 50 mm Shaft Diameter 5 mm D‑type NOTE: notice the twist between the green and blue wires at the connector end. Applications Compact CNC rotary tools and engraving machines. Desktop 3D printers and precision positioning. Small robotics and actuation systems. Camera sliders and automation equipment. Laboratory and medical device motion control. Package Contents 1x NEMA 11 Stepper Motor 28BYGH50. Integrated 50cm 4-wires connection cable. Datasheet 28BYGH50 NEMA 11 .