NEMA23 57HM41-2804 Round Stepper Motor 5Kg-cm

A 0.9° step angle provides twice the resolution compared to standard 1.8° stepper motors. This results in smoother motion, reduced resonance, and significantly improved positional accuracy, which is crucial for detailed 3D printing, CNC machining, and other precision applications requiring fine control.

This is a NEMA23 stepper motor. "NEMA" refers to the National Electrical Manufacturers Association standard for motor frame sizes. NEMA23 indicates a 2.3 x 2.3-inch (58.4 x 58.4 mm) faceplate, signifying its mounting compatibility and general power class, suitable for applications needing moderate to high torque.

Yes, this 4-lead, 2.8A NEMA23 motor is compatible with most 3D printer controller boards that support external stepper drivers. Ensure your stepper driver (e.g., A4988, DRV8825, TMC2208) is rated for 2.8A or higher per phase and properly configured for a 0.9° step angle for optimal performance.

A 5 kg-cm holding torque (approximately 0.49 N·m) indicates the maximum static torque the motor can exert when energized to resist external forces. This high value ensures the motor can firmly hold its position against loads, preventing skipping steps and maintaining precision, especially beneficial in vertical axes or high-inertia systems.

This 4-lead stepper motor is a bipolar type, requiring a bipolar stepper driver. The four leads typically correspond to two coils, which are connected to the A+, A-, B+, B- terminals of a compatible stepper driver. Ensure correct coil pairing and polarity based on the motor's datasheet for proper operation and direction.