Bj42d15 26v10 Stepper Motor Datasheet 【1080p 2024】

Important Context: "BJ42D15" is almost certainly a generic designation used by Chinese manufacturers (often found on Alibaba, AliExpress, or integrated into CNC/3D printer kits). It typically breaks down as:

Wiring: 4-wire bipolar configuration is standard for these models. bj42d15 26v10 stepper motor datasheet

Coil test: Resistance between A+ & A– = 10 Ω; between B+ & B– = 10 Ω; between any A and any B = open circuit. Important Context: "BJ42D15" is almost certainly a generic

How to verify with a multimeter:

• Low Speed: It provides high torque at low speeds, making it excellent for positioning applications without the need for gearing.
• Pull-out Torque: As the speed (RPM) increases, the available torque decreases due to the inductance of the coils.
• Optimization: To maintain torque at higher speeds (above 1000 RPM), a driver with a higher supply voltage (e.g., 24V or 36V DC bus) is recommended to overcome the back-EMF.

• Model: BJ42D15 26V10
• Step Angle: 1.8 degrees
• Step/Rev: 200
• Holding Torque: 4.5 Ncm
• Rated Voltage: 26V
• Rated Current: 1.0A/phase
• Resistance/Phase: 5.5 Ohms
• Inductance/Phase: 3.2 mH

• At Low Speed (0 – 300 RPM): Holding torque remains near 0.30 N·m. Excellent for indexing and positional holding.
• Mid Range (300 – 600 RPM): Torque drops to approximately 0.15 N·m. The motor runs smoothly with low vibration.
• High Speed (600 – 1000 RPM): Torque falls off sharply to 0.05 N·m. Due to the high inductance, the motor struggles at high step rates unless the drive voltage is significantly increased beyond 26V (up to 50V is permissible if current is limited).