Bj42d15 26v10 Stepper Motor Datasheet Exclusive [top]
The BJ42D15-26V10 is a using the standard 4-pin connector (usually a JST PH 2.0 or similar). While pins can vary by manufacturer, the most common wiring arrangement for this motor in Creality machines is as follows:
If your BJ42D15-26V10 has failed or you are looking for a replacement, follow these guidelines:
Because the phase resistance is 10Ω, you do not need current chopping for low speeds. You can drive this motor with a simple L298N H-bridge and a 24V PWM signal for ultra-low-noise applications. This is impossible with low-resistance 2A motors. bj42d15 26v10 stepper motor datasheet exclusive
The model number "BJ42D15-26V10" is not arbitrary. It encodes critical physical and electrical traits.
: 5mm diameter, often with a "D-shape" or press-fitted pulley depending on the specific lot. Operational Features Creality Ender 3 Stock Factory Vref · GitHub 19 Jan 2025 — The BJ42D15-26V10 is a using the standard 4-pin
💡 This motor performs exceptionally well at 1/16 and 1/32 microstepping, which smooths out the 1.8° steps and significantly reduces resonance noise in CNC environments.
| Electrical Parameter | Rating | | :--- | :--- | | | 26 V DC | | Current per Phase | 1.0 A | | Winding Resistance (Ω) | 26 Ω ± 10% (per phase) | | Winding Inductance | 15 mH ± 20% (typical at 1 kHz) | | Holding Torque | 0.20 N·m (28.3 oz-in) minimal | | Detent Torque | 0.012 N·m (typical) | | Rotor Inertia | 20 g·cm² | This is impossible with low-resistance 2A motors
| Feature | BJ42D15 26V10 | Generic NEMA 17 (2.5V / 1.5A) | | :--- | :--- | :--- | | Supply Voltage | | 12-24V chopper required | | Driver Complexity | Simple L298N or relay driver | Needs sophisticated microstepping | | Heat Generation | Low (high resistance) | High (requires active cooling) | | Torque Density | Moderate (0.20 N·m) | High (0.45 N·m possible) |
While many steppers are rated for 12V or 24V drive, the exclusive 26V rating of this motor allows for a unique current decay profile, reducing mid-range resonance.