Bj42d15 26v10 Stepper Motor Datasheet -

What (Arduino, ESP32, Raspberry Pi) or control board are you using? What stepper motor driver chip do you plan to use?

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

However, official guidance from Creality for the Ender 3 series advises a Vref of approximately 1.06V for the 26V10 variant, which is nearly triple the calculated value above. This suggests that in many 3D printer applications, the motor is intentionally to increase torque, which correspondingly increases heat generation. Therefore, when installing this motor as a replacement, always verify the optimal Vref from your original printer’s manufacturer to balance torque and thermal performance. bj42d15 26v10 stepper motor datasheet

A sample datasheet for the similar provides additional reference material. For precise specs of your specific variant, always refer to the manufacturer datasheet.

sense resistor, you would tune the Vref potentiometer to approximately to supply a safe running current. Applications What (Arduino, ESP32, Raspberry Pi) or control board

The BJ42D15-26V10 typically comes with a 4-pin JST-PH connector, which is standard on many 3D printer motherboards. Pair 1 Phase B: Pair 2 Standard 4-Wire Configuration:

Stepper motors run naturally hot to the touch. Ensure proper airflow or mount the metal frame directly to a heat-conductive surface (like an aluminum chassis) if operating at maximum current capacity for extended periods. Interfacing with Drivers This suggests that in many 3D printer applications,

The BJ42D15 26V10 stepper motor has the following electrical characteristics:

BJ42D15-26V10 is a 2-phase, hybrid NEMA 17 stepper motor manufactured by Hunan Keli Motor Co., Ltd. and most notably deployed as an OEM component across millions of desktop 3D printers, such as the Creality Ender 3 series . Featuring a standard , a 34mm body length, and a rated current typically tuned to 0.84A , this compact motor is engineered for high-precision, low-noise positioning tasks. Understanding its precise electrical profiles and configuration parameters is critical for anyone looking to optimize stepper driver current, tune firmware, or execute a custom DIY automation project. Core Technical Specifications