Exclusive: Bj42d15 26v10 Stepper Motor Datasheet
While not officially bearing the NEMA 17 certification mark, the BJ42D15-26V10 adheres to the de facto NEMA 17 standard in every critical way.
The BJ42D15-26V10 belongs to the 42-34 frame family, meaning it features a standard square faceplate and a compact body length. Electrical and Mechanical Parameters Creality Ender 3 Stock Factory Vref · GitHub
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. bj42d15 26v10 stepper motor datasheet exclusive
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The is a highly reliable NEMA 17 hybrid stepper motor manufactured by Keli Motor Group and heavily used across the Creality Ender 3 ecosystem . Finding its exact manufacturer technical parameters online is famously difficult, as most community documentation blends it together with similar 42-34 frame variants. While not officially bearing the NEMA 17 certification
For stable operation:
The model number "BJ42D15-26V10" is not arbitrary. It encodes critical physical and electrical traits. : The is a highly reliable NEMA 17
The BJ42D15-26V10 is a 42x42x34mm NEMA 17 hybrid stepper motor by Keli Motor Group, commonly utilized in Creality Ender 3 printers for X, Y, or Z axis movements. It features a 1.8-degree step angle, 0.84A rated current per phase, and 2.86 kg·cm holding torque. For optimal performance on Creality boards, Vref should be adjusted to approximately 0.725A–0.75A to avoid overheating. Creality Ender 3 Stock Factory Vref · GitHub
This motor is designed for high torque at moderate speeds, making it perfect for X, Y, or Z-axis applications. Key Features Delivers strong retention force. Precision Control: 1.8° ± 5% per step. D-Shaft: Simplifies coupling attachment, reducing slip.
The motor conforms to standard NEMA 17 mounting specifications:
| | Value | | --------------------------- | -------------------------------------- | | Step Angle | 1.8° | | Body Size | 42mm × 42mm × 34mm | | Shaft Diameter | 5mm | | Rated Current (RMS) | 1.06A (max 1.5A) | | Holding Torque | ~2.86 kgf·cm (0.28 N·m) | | Phase Resistance (Ω) | 6~30Ω (varies by model) | | Phase Inductance (mH) | 8.8~51mH | | Insulation Class | B (130°C) | | Rotor Inertia | 35~38 g·cm² |