Bj42d15 26v10 Stepper Motor Datasheet Verified _hot_ -
is a widely integrated, factory-standard NEMA 17 motor manufactured by Keli Motor Group and famously utilized across . This comprehensive, verified datasheet guide details the exact electrical ratings, mechanical specifications, and critical calculation procedures necessary to securely configure your printer's stepper drivers without overheating or stalling. Core Specifications Overview
The following parameters are based on a sample of three motors from a single production batch (lot #B42-2409). Batch-to-batch variations may exist, particularly in:
Many users initially assumed these motors were rated for 1.5A, which led to overheating when they set their driver's VREF (Voltage Reference) The Breakthrough: Enthusiasts eventually reached out directly to Keli Motor
than what they are when they get to this cable. so manufacturers will usually wire this end up to the standard four pin connection... bj42d15 26v10 stepper motor datasheet verified
During our research, we compared 11 online "datasheets" claiming to be for the BJ42D15 26V10. Here are the verified corrections:
The winding temperature stabilizes at approximately 78.5°C, well within Class B insulation limits (130°C). Ambient temperature derating: reduce current by 2.5% per °C above 40°C ambient.
Pin-compatible with almost all standard 3D printer boards using JST-XH 4-pin connectors. is a widely integrated, factory-standard NEMA 17 motor
Creality 3D Printer Stepper Motor 42-34, 2 Phases 0.8A 1.8 Degrees ...
The is a specific NEMA 17 stepper motor model commonly found in Creality 3D printers , such as the Ender-3 series. According to verified technical data from Keli Motor and community documentation, this motor is a high-precision, 2-phase hybrid stepper designed for applications requiring consistent torque and low noise. Verified Technical Specifications
Always measure phase resistance before first power-on. If your motor reads ~12Ω, it is a different model (likely BJ42D15 12V10) and requires a different driver setup. Here are the verified corrections: The winding temperature
By spinning the motor at 300 RPM and measuring the open-circuit voltage on one phase, we derived the back EMF constant ( k_e ):
The BJ42D15 provides useful torque up to 2500 steps/sec (750 RPM) with a 26V supply. Above 3000 steps/sec, the motor loses synchrony under load.
Based on manufacturer data and verified community testing, the technical parameters for the (and its closely related variants like the -26V09) are as follows: Step Angle: 1.8° (200 steps per revolution).