Bj42d15 26v10 Stepper Motor Datasheet Link

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.

While the motor is rated for ~2.6V, chopper drivers typically supply 12V, 24V, or 36V to the driver board. The driver chops the voltage to maintain the set current limit (1.5A).

: The range of temperatures in which the motor can operate.

For the standard 4-wire bipolar version of the BJ42D15-26V10, the wiring is straightforward. bj42d15 26v10 stepper motor datasheet

The BJ42D15-26V10 has a (excluding the shaft). The total length including the shaft extension is typically 48mm. Key mechanical dimensions from a generic BJ42D15 series drawing include a 42mm frame, 5mm diameter shaft, 22mm shaft length, and 31mm distance between mounting holes. The motor complies with the NEMA 17 standard, making it a direct fit for standard 31mm spaced mounting holes.

VREF=Irun×1.414=0.672×1.414≈0.95VVREF equals cap I sub run end-sub cross 1.414 equals 0.672 cross 1.414 is approximately equal to 0.95 V

If the manufacturer's original datasheet is not available at the distributor (e.g., Mouser, DigiKey), use these strategies: If you are replacing a failed motor on

1.0A to 1.5A per phase (Depending on manufacturing batch and thermal dissipation) Phase Resistance: Approximately 1.5 to 2.5 Ohms Phase Inductance: Typically 3.0 mH to 4.5 mH Step Angle: 1.8° (200 full steps per revolution) Physical & Mechanical Attributes Frame Size: NEMA 17 (42mm x 42mm) Body Length (L): ~34mm to 40mm (Excluding shaft) Shaft Diameter: 5mm (Standard D-shape for slip prevention) Shaft Length: ~20mm to 24mm

Providing high-speed, repeatable positioning for optical laser heads.

Under a full 1.0A load, the surface temperature can rise by up to 80∘C80 raised to the composed with power C The driver chops the voltage to maintain the

VREF=1.0×8×0.1×0.7≈0.56 Voltscap V sub cap R cap E cap F end-sub equals 1.0 cross 8 cross 0.1 cross 0.7 is approximately equal to 0.56 Volts

While official standalone PDF documentation can be notoriously difficult to find for specific OEM batch numbers, community testing, manufacturer correspondence, and cross-references from the Keli Motor Group establish the standard datasheet metrics for the BJ42D15-26V10 variant: Specification Profile NEMA 17 (42 mm × 42 mm) Body Length 34 mm (Often referred to as a "42-34" motor) Step Angle 1.8° (±5% accuracy per full step) Steps Per Revolution Phase / Configuration 2-Phase Hybrid / Bipolar Rated Voltage Maximum 24V – 26V DC Rated Current (Peak) 0.84A – 1.0A max Holding Torque ~2.86 kg·cm (0.28 N·m / 40 oz-in) Shaft Diameter & Style 5mm "D-Shape" or Round (varies by production lot) Insulation Class Class B (Safe operating temperature up to 80°C rise) Understanding the Part Number (Decoded)

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