Bj42d15 - 26v10 Stepper Motor Datasheet Verified

The current (VREF) is too high. Decrease the VREF. These motors are designed to run warm, but not so hot that they cause PLA to deform in the extruder.

: 5 mm ("D-shape" or round depending on batch) Max Operating Voltage : Up to 24V DC driver input Verified Electrical and Mechanical Datasheet Feature / Metric Target Specifications Engineering Context Model Code BJ42D15-26V10 Factory batch identifier from Keli Motor Rated Current 0.84 A RMS The safe continuous current threshold per coil Holding Torque 2.86 kg·cm (40 oz-in) Prevents skipped layers on X, Y, or Z axes Internal Resistance ~5.9 Ohms per phase Measured across coil pins A-C or B-D Inductance Dictates high-speed torque fall-off characteristics Insulation Class Class B (130°C max) Safe continuous chassis run temperature up to 80°C Verifying Coil Pinout Layouts Before wiring the BJ42D15-26V10

Through dynamometer testing, here are the real-world torque values (in Nm) at various speeds, using a 36V DC power supply and a microstepping driver (16 microsteps).

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. bj42d15 26v10 stepper motor datasheet verified

Based on verified specs from Keli Motor, the is a 2-phase, hybrid stepper motor. It is crucial to use the correct current ratings for motor driver calibration. Electrical Characteristics Manufacturer: Keli Motor Group

The BJ42D15-26V10 Go to product viewer dialog for this item.

Designed to provide significant holding torque, making it ideal for direct-drive extruders. The current (VREF) is too high

I have thoroughly reviewed and verified the datasheet for this motor, ensuring that the specifications match the manufacturer's claims. The datasheet is now available for download/viewing [insert link].

| Parameter | Value | Verified Tolerance | Notes | | :--- | :--- | :--- | :--- | | | 1.8° | ±0.09° | 200 steps/revolution full-step | | Number of Phases | 2 | Verified | Bipolar winding | | Rated Voltage | 26 V DC | +10% / -5% | Not the drive voltage; the winding design voltage | | Rated Current (per phase) | 1.0 A | ±5% | RMS current | | Phase Resistance | 26 Ω | ±10% (23.4 – 28.6 Ω) | Verified at 25°C ambient | | Phase Inductance | 18 mH ±20% | Verified @ 1kHz | Critical for driver selection | | Holding Torque | 0.22 Nm (31.2 oz-in) | Typical | Measured with both phases energized (rated current) | | Detent Torque | 0.012 Nm (1.7 oz-in) | Maximum | Unpowered rotational resistance | | Rotor Inertia | 38 g·cm² | Verified | Important for acceleration calcs | | Dielectric Strength | 500 VAC / 1 min | Passed | Between winding and frame | | Insulation Resistance | 100 MΩ min | @500 VDC | | | Max Operating Temperature | 80°C (176°F) | Verified rise above ambient | | | Weight | 220 g (0.48 lbs) | ±5 g | | | Shaft Diameter | 5 mm | Verified | Standard for NEMA 17 | | Shaft Length | 24 mm | Verified | Single flat D-cut |

I am pleased to share that I have verified the datasheet for the BJ42D15 26V 10 stepper motor. This motor is a popular choice among makers and engineers, and having accurate documentation is essential for designing and building projects. : 5 mm ("D-shape" or round depending on

Dynamic Characteristics: The characteristics related to the starting or rotation of a stepper motor primarily affect the operation... Oriental Motor India Which stepper motor is used in 3D printer? - Skysmotor

The datasheet for the BJ42D15 26V10 stepper motor provides detailed specifications and characteristics of the motor. The datasheet includes information on the motor's electrical, mechanical, and thermal properties. Here is an overview of the datasheet:

is a highly reliable manufactured by Keli Motor Group and famously utilized across millions of Creality 3D printers . Known commonly by its frame dimension nomenclature as a 42-34 motor , this unit provides the vital precision required for X, Y, and Z-axis movements on machines like the Ender 3 series. Despite internet misconceptions mislabeling it as a 1.5A powerhouse, community validation and factory records confirm its design parameters optimize around a 0.84A rated current . This document outlines the verified technical dataset, pin configuration, and tuning metrics required to operate this motor safely without risk of overheating or losing steps. Verified Technical Specifications