Based on the series standards from the Keli Motor Group and community data on the GitHub Creality Vref database , the motor follows these parameters: Type: 2-Phase Hybrid Stepper Motor. Step Angle: 1.8∘1.8 raised to the composed with power (200 steps per revolution). Rated Current: Approximately 0.84A .
(for DRV8825 or A4988) or consult the TMC driver documentation. A typical setting is 0.8A - 1.0A ( Vrefcap V sub ref end-sub around 1.0 - 1.2V) to avoid overheating. 6. Summary and Conclusion
The high resistance (26Ω) relative to typical NEMA 17 motors (which often sit at 2-10Ω) means this motor is designed for constant voltage drivers rather than chopper-drive current-control. Driving it at exactly 26V DC will yield smooth microstepping without current spikes. bj42d15 26v10 stepper motor datasheet exclusive
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Although it can run warm during extended, high-current operations, the Class B insulation allows it to operate safely at higher temperatures (up to 130°C). However, for optimal longevity, active cooling is recommended. 4. Application Areas Based on the series standards from the Keli
The is a highly popular, specialized 2-phase hybrid stepper motor manufactured by Hunan Keli Motor Co., Ltd. . Widely recognized as the standard stock motor for Creality Ender 3 series (X, Y, and Z axes) , this NEMA 17 hardware element frequently leaves makers scrambling for proper documentation.
The following are the key features and specifications of the BJ42D15-26V10 stepper motor: (for DRV8825 or A4988) or consult the TMC
For direct access to the official PDF datasheet (mechanical drawing + detent torque graph) exclusive to this article, check the resource section below.
It typically features a standard 4-pin JST-PH connector, but always verify the pinout for "A+ A- B+ B-" configuration as some Creality cables cross the middle two wires.