NEMA 17 Stepper Motor – 40mm Length

Original price was: ₵160.00.Current price is: ₵145.00.

Out of stock

The NEMA 17 stepper motor (40mm, 1.7A) with a 1000mm cable offers 4.5kg-cm torque for precise motion in 3D printers, CNC machines, and robotics projects.

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Description

The NEMA 17 Stepper Motor – 40mm Length, 1.7A with 1000mm Cable is a robust bipolar stepper motor engineered for precise motion control in a variety of applications. With a 42x42x40mm frame (1.7×1.7-inch faceplate) and a 1.8° step angle (200 steps/revolution), it delivers a holding torque of 4.5kg-cm (45Ncm, 64oz-in) at 1.7A per phase, making it ideal for 3D printers (e.g., RepRap Prusa, Creality Ender-3), CNC routers, laser engravers, and robotics. The motor operates at 2.4–3.3V, with a phase resistance of ~1.65Ω and inductance of ~2.8mH (±20% at 1kHz), ensuring efficient performance when paired with drivers like the A4988 or DRV8825. Its 4-wire configuration (Black: A+, Green: A-, Red: B+, Blue: B-) is pre-terminated with a 1000mm cable and a 4-pin Molex or Dupont connector, ready for plug-and-play integration with RAMPS boards or CNC shields. The 5mm D-shaft (20–23mm length) facilitates easy attachment to pulleys, couplings, or gears, with 31mm-spaced M3 mounting holes for secure installation. Rated at 1.7A, it balances power and heat dissipation, requiring an A4988 driver with Vref set to ~0.68V (Vref = 0.4 × Current Limit) and a heatsink for sustained operation above 1A. Microstepping (up to 1/16 with A4988) enables up to 3200 microsteps/rev for smooth motion, ideal for high-precision tasks. Weighing approximately 280–310g, this motor offers low noise, low heat, and a rotor inertia of ~57g·cm² for responsive start/stop performance. This RoHS-compliant, high-torque motor is optimized for 12–24V power supplies (higher voltage increases torque) and is compatible with printers like Flashforge Adventurer 5M when used with appropriate drivers. For best results, use a constant-current chopper driver, ensure proper current limiting, and avoid disconnecting the motor while powered to prevent driver damage.