26v10 Stepper Motor Datasheet Verified - Bj42d15

| Claimed Parameter | Wrong Value (Found online) | Verified Correct Value | Consequence of Wrong Value | | :--- | :--- | :--- | :--- | | Phase resistance | 12Ω | | Driver overcurrent, blown driver chip | | Rated voltage | 12V | 26V | 50% torque loss, missed steps | | Holding torque | 0.4 N·m | 0.21 N·m | Mechanical overload, stall | | Weight | 350g | 220g | Improper gantry counterbalance | | Step accuracy | ±3% | ±5% | Position error in multi-rev moves |

| Parameter | Value | Tolerance | | :--- | :--- | :--- | | | 1.8° ±5% | Full step, non-microstepping | | Steps per Revolution | 200 | - | | Number of Phases | 2 | Bipolar | | Number of Leads | 4 | AWG26, 300mm length | | Rotor Inertia | 38 g·cm² | - | | Weight | 220 grams (0.485 lbs) | ±10g | | Body Length (excluding shaft) | 15 mm | - | | Shaft Diameter | 5 mm | - | | Shaft Length (from face plate) | 24 mm | - | | Shaft Flat | Single flat, 10mm from tip | - | | Mounting Hole Pattern | 31mm x 31mm (M3 screws) | - | bj42d15 26v10 stepper motor datasheet verified

Further research and testing are recommended to explore the motor's performance under various environmental conditions, such as temperature, humidity, and vibration. | Claimed Parameter | Wrong Value (Found online)

Inductance measured at 1 kHz is 27.8 mH. The electrical time constant (L/R) is: [ \tau_elec = \frac27.8 \text mH26.15 \Omega \approx 1.06 \text ms ] This relatively high time constant implies that microstepping drivers operating above 25 kHz PWM frequency are recommended for smooth current regulation. such as temperature

The following parameters were independently measured or mathematically validated: