Bj42d15 26v10 Stepper Motor Datasheet Verified -

If you have purchased this motor from a non-reputable seller, use the following verification steps.

Before diving into tables, it is critical to understand what the nomenclature means. The model number itself contains key design parameters.

| Code Segment | Meaning | Implication | | :--- | :--- | :--- | | BJ | Manufacturer Series (Typically a Chinese NEMA 17 derivative, verified with factory tolerance) | Standardized frame, but with custom winding. | | 42 | Frame Size: 42mm x 42mm (NEMA 17 standard) | Compatible with standard NEMA 17 mounting patterns. | | D15 | Stack Length / Rotor Length: 15mm stator stack | Short stack – prioritizes high speed over low-speed torque. | | 26V10 | Rated Voltage: 26V DC / Current: 1.0 Ampere per phase (bipolar) | Low-current, high-voltage design – ideal for microstepping drivers. |

Verified Note: Many online listings mislabel this motor as a 12V or 24V generic unit. Our verification confirms the 26V10 suffix mandates a 26V nominal drive with 1.0A phase current. Running it at 12V will result in 60% torque loss.

| Driver Type | Connect A+ | Connect A- | Connect B+ | Connect B- | | :--- | :--- | :--- | :--- | :--- | | TMC2208/2209 | Red | Green | Blue | Black | | A4988 | Red | Green | Blue | Black | | DRV8825 | Red | Green | Blue | Black |

WARNING: 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.

Based on verified inductance and resistance:

After cross-referencing manufacturer datasheets and community testing, here are the verified specifications for the BJ42D15-26V10.

Physical Specifications:

Electrical Specifications (The "Verified" Part):

Performance Specs:

Note: the part string as provided lacks a widely known manufacturer match. Several key numeric fields (current units, exact step angle, torque, inductance, resistance, holding torque, rotor inertia, detent torque, insulation class, temperature ratings) are ambiguous or missing — these are flagged below.

Data compiled from manufacturer datasheet (BJ42D15-26V10). Values reflect typical electrical and mechanical characteristics at 25°C ambient, unless otherwise stated.

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BJ42D15-26V10 Stepper Motor Datasheet Overview

The BJ42D15-26V10 is a bipolar stepper motor with a specific set of characteristics. Here's a breakdown of the datasheet:

Electrical Characteristics:

Mechanical Characteristics:

Physical Characteristics:

Operating Conditions:

Other Specifications:

Verification and Manufacturer Information:

To verify the datasheet, I recommend checking with the manufacturer or supplier of the BJ42D15-26V10 stepper motor. You can search online for "BJ42D15-26V10 stepper motor datasheet" or "NEMA 17 stepper motor datasheet" to find the manufacturer's website or a reliable source.

Some popular manufacturers of stepper motors include:

When verifying the datasheet, ensure that you check the specifications, electrical characteristics, and mechanical characteristics to ensure they match your requirements.

The BJ42D15-26V10 is a NEMA 17 stepper motor manufactured by Keli Motor Group and is commonly used in Creality 3D printers like the Ender series. It is categorized as a "42-34" motor, referring to its 42mm faceplate and 34mm body length. Verified Technical Specifications

Based on manufacturer data and verified community testing for the BJ42D15 series, the primary specifications are as follows: Specification Model Number BJ42D15-26V10 Type 2-Phase Bipolar Hybrid Stepper Step Angle 1.8∘1.8 raised to the composed with power (200 steps per revolution) Rated Current 0.84 A per phase Rated Voltage 26V (Optimized for 24V systems) Holding Torque 2.86 kg·cm (approx. 0.28 N·m) Dimensions 42 x 42 x 34 mm Shaft Diameter 5 mm (standard NEMA 17) Key Features

Operating Efficiency: While rated for 26V, it is typically used with 12V or 24V power supplies in 3D printers.

Thermal Performance: Designed to withstand high-temperature environments, often rated for vapor emission up to 105∘C105 raised to the composed with power C

Smooth Operation: Part of the Keli BJ42D series, which focuses on low noise and minimal vibration through optimized rotor design. Wiring and Pinout

The motor typically features a 4-pin JST-XH connector. While wire colors can vary depending on the cable provided by the printer manufacturer, the standard internal coil pairing for this series is: Creality Ender 3 Stock Factory Vref · GitHub bj42d15 26v10 stepper motor datasheet verified

The BJ42D15-26V10 is a specific NEMA 17 stepper motor frequently found in Creality 3D printers, such as the Ender 3 series. Finding a "verified" datasheet for this specific model has long been a challenge for the hobbyist community, often requiring direct contact with the manufacturer, Keli Motor Group. Verified Technical Specifications

Based on manufacturer data and community verification from sources like GitHub Gists, the specs for the BJ42D15-26V10 are as follows:

Rated Current: 0.84A per phase. Note: It is commonly mistaken for 1.5A, but running it at this current can lead to overheating. Step Angle: 1.8° (200 steps per revolution). Holding Torque: 2.86 kg·cm (approximately 0.28 N·m). Dimensions: 42mm x 42mm x 34mm (NEMA 17 standard). Shaft Diameter: 5mm. Input Voltage: Maximum 24V DC. Wiring and Integration

This is a 2-phase hybrid motor typically featuring a 4-wire configuration. If you are replacing a motor or building a new machine:

How to Adjust VREF / Stepper Motor Current on Ender 3 (Pro/V2)

The BJ42D15-26V10 is a NEMA 17 hybrid stepper motor manufactured by Keli Motor (or branded for Creality) commonly used in 3D printers like the Ender 3 series. While many online sources assume a 1.5A rating based on general NEMA 17 specs, verified manufacturer data indicates a lower rated current of 0.84A. Technical Specifications

This motor is essentially a "42-34" model, meaning it has a 42mm frame and a 34mm body length. Verified Specification Model Number BJ42D15-26V10 Frame Size NEMA 17 (42 x 42 mm) Motor Length Step Angle 1.8° (200 steps per revolution) Rated Current 0.84 A per phase Input Voltage Up to 24V DC Holding Torque 0.4 N.m (approx. 2.86 kg.cm) Shaft Diameter 5 mm (often "D" shaped) Phases Wiring & Pinout