Bj42d15 26v10 Stepper Motor Datasheet

| Parameter | Value | |------------------------|---------------------------| | Frame size | NEMA 17 (42.3 mm square) | | Motor length (D15) | 34 mm ±0.5 mm | | Shaft diameter | 5 mm | | Shaft length | 20–24 mm | | Weight | ~220–250 g | | Number of leads | 4 wires (bipolar) | | Connector type | Molex or JST (often 2.54 mm pitch) |

To avoid skipping steps or overheating your motor, you must correctly set the motor driver's reference voltage (VREF). In desktop 3D printers using drivers like the A4988 or TMC2208/TMC2209, setting the current to roughly balances cool operation with ample torque. BJ42D15-26V10 rated at a maximum current ( Imaxcap I sub max end-sub ) of 0.84A, the target driving current ( Iruncap I sub run end-sub ) should be:

:

Operate this motor below 600 steps per second (300 RPM) for optimal performance.

| Parameter | Value | Unit | Notes | | :--- | :--- | :--- | :--- | | | 2.6 | V DC | Per phase | | Rated Current | 1.0 | A | Per phase (Bipolar) | | Phase Resistance | 2.6 | Ω (Ohms) | At 25°C (R = V/I; 2.6/1.0 = 2.6Ω) | | Phase Inductance | 3.2 – 4.5 | mH | Typical range for this stack size | | Insulation Class | B (130°C) | - | Maximum allowable winding temperature | | Dielectric Strength | 500 | V AC | For 1 minute | | Insulation Resistance | 100 | MΩ (Min) | At 500 V DC | bj42d15 26v10 stepper motor datasheet

And somewhere in the lab, the little black stepper motor clicked once—a single, perfect 1.8-degree step into yesterday.

If you want, I can:

When purchasing a BJ42D15 26V10 stepper motor, request a or ask the supplier to verify via multimeter:

1.8 degrees, meaning it takes 200 steps to complete a full 360° rotation. | Parameter | Value | Unit | Notes