Because the resistance is 26Ω per phase, at 1.0A, the power dissipation is:
A standard NEMA 17 might run at 2.0A and 3.5V. The BJ42D15 runs at 0.5A and 26V. Using Ohm’s Law (P = I²R):
Many makers mistakenly configure this NEMA 17 hybrid stepper motor using generic 1.5A profiles, leading to overheating, missed steps, or driver damage. This datasheet analysis settles the confusion by delivering the verified technical metrics directly from factory firmware frameworks and physical hardware parameters. Technical Specifications Breakdown BJ42D15-26V10 bj42d15 26v10 stepper motor datasheet exclusive
To understand the motor's physical and electrical nature, one must decode the nomenclature:
BJ42D15-26V10 Stepper Motor Datasheet Exclusive: Specifications, VREF Tuning, and 3D Printer Optimization Because the resistance is 26Ω per phase, at 1
The is a highly popular, specialized 2-phase hybrid stepper motor manufactured by Hunan Keli Motor Co., Ltd. . Widely recognized as the standard stock motor for Creality Ender 3 series (X, Y, and Z axes) , this NEMA 17 hardware element frequently leaves makers scrambling for proper documentation.
This article provides an , offering insights into its electrical specs, mechanical dimensions, performance characteristics, and ideal use cases. 1. BJ42D15-26V10 Motor Overview This datasheet analysis settles the confusion by delivering
The BJ42D15-26V10 belongs to the 42-34 frame-size family (42mm faceplate, 34mm body length). It features a standard 2-phase hybrid design optimized for high positioning accuracy and silent operation. Specification Value NEMA 17 (42 x 42 mm) Motor Height 34 mm (42-34 configuration) Step Angle 1.8° (200 full steps per revolution) Rated Current 0.84 A per phase Holding Torque 2.86 kg·cm (0.28 N·m / 40 oz·in) Maximum Input Voltage Shaft Diameter 5 mm (D-shape or Round depending on batch) Phase Count Winding Resistance ~5.9 Ohms per phase Understanding the Model Number Nomenclature
The is a specific variant of the NEMA 17 hybrid stepper motor, commonly manufactured by Hunan Keli Motor Co. and frequently utilized in Creality 3D printers like the Ender and CR-10 series. This motor is often referred to by its generic dimensions as a "42-34" stepper, denoting its mm faceplate and 34 mm body length. Technical Specifications The "exclusive" datasheet details for the BJ42D15-26V10
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