26v10 Stepper Motor Datasheet Verified: Bj42d15

Many online listings mislabel this motor as a 12V or 24V generic unit. Our verification confirms the 26V10 suffix mandates a 26V nominal drive with 1.0A phase current. Running it at 12V will result in 60% torque loss.

The measured phase resistance at 20°C is 26.2 Ω (Phase A) and 26.1 Ω (Phase B), averaging 26.15 Ω. Using copper’s temperature coefficient (0.393% per °C), at 80°C winding temperature, resistance rises to approximately 32.2 Ω. This must be accounted for in current chopper driver design. bj42d15 26v10 stepper motor datasheet verified

Because it has a higher phase resistance (26Ω) compared to low voltage motors (1.5–5Ω), it draws only 1A at 26V. According to Ohm's Law: V = I × R → 26V = 1.0A × 26Ω. Many online listings mislabel this motor as a

This motor is a standard component found in several Creality models, including the Ender 3 series and CR-10 . It is specifically optimized for low noise and smooth operation in 3D printing environments. Technical Usage Notes The measured phase resistance at 20°C is 26

This data was compiled from a manufacturer's inspection sheet (Batch ID: BJ42D15-2024-03) and confirmed via independent lab testing using a Tektronix DMM4050 and a Magtrol torque transducer.

Optimized by Keli Motor Group to minimize resonance, which is critical for smooth surface finishes in 3D printing.

| Time (min) | Case Temp (°C) | Winding Est. (°C) | |------------|----------------|-------------------| | 0 | 25.0 | 25.0 | | 5 | 42.1 | 48.5 | | 10 | 54.3 | 63.0 | | 15 | 61.2 | 72.5 | | 20 | 64.5 | 77.0 | | 30 | 65.1 (stable) | 78.5 (stable) |