26v10 Stepper Motor Datasheet Verified | Bj42d15

The most common failure point with this motor is incorrect stepper driver voltage reference (Vref). If you upgrade to a silent board (like SKR Mini E3 V3.0) or replace a blown driver, you must set the current. Since this motor is , the formula is specific.

Often features a geared or "pancake" design optimized for torque in a compact form factor. Verified BJ42D15-26V10 Technical Specifications

Power up the 3D printer mainboard via the 24V input power supply.

Do not swap wire pairs arbitrarily. If the motor vibrates but does not turn, swap one entire coil (e.g., exchange Red and Green) to reverse the phase. bj42d15 26v10 stepper motor datasheet verified

The BJ42D15 26V10 stepper motor has several characteristics that make it suitable for a wide range of applications. Here are some of the key characteristics:

Compact pancake style (variable based on specific revision). Shaft Diameter: 5mm.

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 The most common failure point with this motor

Running this motor on modern stepper drivers (like TMC2208, TMC2209, or A4988) requires manually calibrating the reference voltage ( VREFcap V sub cap R cap E cap F end-sub

| Speed (RPM) | Torque (Nm) | Torque (oz-in) | Application relevance | | :--- | :--- | :--- | :--- | | 0 (Holding) | 0.22 | 31.2 | Maximum gripping force | | 200 | 0.20 | 28.3 | Smooth, slow positioning | | 400 | 0.16 | 22.6 | Light CNC routing | | 600 | 0.11 | 15.6 | Typical 3D printing speed | | 800 | 0.07 | 9.9 | Fast infill moves | | 1000 | 0.04 | 5.7 | Limit for useful torque |

BJ42D15-VER-2024-001 Revision: 1.0 Date: April 23, 2026 Subject: Verified Electrical, Mechanical, and Thermal Characteristics Often features a geared or "pancake" design optimized

Before we get to the verified specs, let's decode the model number. This standard naming convention tells us the physical size of the motor before we even look at a datasheet:

Whether you are troubleshooting a failed Y-axis motor on your Ender 3, upgrading your printer's board, or sourcing a replacement, this guide provides the reliable, verified information you need.