Disclaimer: Specifications are aggregated from multiple industry sources and reverse engineering. Always perform your own validation upon receipt of the physical component.
If you are replacing a failed motor on a machine, the mechanical drawings are more important than the electrical specs. The BJ42D15 adheres strictly to NEMA 17 standards.
| Parameter | Value | |------------------------|---------------------------| | Holding torque | ~0.25–0.35 N·m | | Step angle | 1.8° (200 steps/rev) | | Accuracy | ±5% (non-cumulative) | | Detent torque | 0.015 N·m typical | | Rotor inertia | ~35 g·cm² | | Max starting frequency | ~2 kHz | | Max operating frequency| 10–20 kHz (with driver) |
Are you looking to for a specific stepper driver like the TMC2209 or A4988?
To get the best performance and keep the motor completely silent/cool:
Use flexible jaw couplers when connecting to lead screws to account for minor shaft misalignments. If you'd like more specific information, please tell me: Specific driver you are using (e.g., TMC2209, A4988) Voltage of your power supply Mechanical load details (e.g., weight of the axis)
When integrating this motor, remember two golden rules from the datasheet:
Disclaimer: Specifications are aggregated from multiple industry sources and reverse engineering. Always perform your own validation upon receipt of the physical component.
If you are replacing a failed motor on a machine, the mechanical drawings are more important than the electrical specs. The BJ42D15 adheres strictly to NEMA 17 standards.
| Parameter | Value | |------------------------|---------------------------| | Holding torque | ~0.25–0.35 N·m | | Step angle | 1.8° (200 steps/rev) | | Accuracy | ±5% (non-cumulative) | | Detent torque | 0.015 N·m typical | | Rotor inertia | ~35 g·cm² | | Max starting frequency | ~2 kHz | | Max operating frequency| 10–20 kHz (with driver) |
Are you looking to for a specific stepper driver like the TMC2209 or A4988?
To get the best performance and keep the motor completely silent/cool:
Use flexible jaw couplers when connecting to lead screws to account for minor shaft misalignments. If you'd like more specific information, please tell me: Specific driver you are using (e.g., TMC2209, A4988) Voltage of your power supply Mechanical load details (e.g., weight of the axis)
When integrating this motor, remember two golden rules from the datasheet:
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