Bj42d15 26v10 Stepper Motor Datasheet (2026)

The BJ42D15-26V10 is a 2-phase NEMA 17 bipolar stepper motor manufactured by Hunan Keli Motor. It is commonly found as a stock component in Creality 3D printers, such as the Ender 3 series, typically used for the X, Y, or Z axes. Key Features & Specifications Step Angle : 1.8∘1.8 raised to the composed with power (200 steps per revolution). Rated Current : Approximately per phase. Note : While some Creality variants are rated up to , technical discussions suggest is the standard for the 34mm height models like the BJ42D15. Input Voltage : Maximum Holding Torque : Approximately Physical Dimensions : Frame Size : NEMA 17 ( Motor Height : (often referred to as a "42-34" motor). Shaft : diameter, typically "D-shaped" for secure gear mounting. Performance Characteristics Creality Ender 3 Stock Factory Vref · GitHub

Dr. Elara Vance stared at the blinking cursor on her terminal. The lab was silent except for the low hum of the climate-controlled archive. On her screen was the only clue the university’s investigation team had given her: a file name. bj42d15 26v10 stepper motor datasheet.pdf It looked mundane. Boring, even. A spec sheet for a hybrid stepper motor—bipolar, NEMA 17 frame size, 42mm body, 1.8-degree step angle. The "26v10" likely meant 2.6 volts at 1.0 amperes per phase. She’d seen a hundred such documents. But this one had been encrypted with a military-grade timestamp, locked inside the personal drive of Professor Aldric Kaine, who had vanished three weeks ago. And the university’s AI security watchdog had flagged it as a "cognitive hazard." Elara took a sip of cold coffee and double-clicked. The PDF opened normally. Page one: mechanical drawings. Page two: wiring diagrams. Page three: torque-speed curves. She squinted. Nothing. Then she noticed the pull-down menu at the bottom of the reader: Layers . There were five layers. The first four were the standard datasheet. The fifth was labeled d15_schematic . She clicked it. The diagram warped. The standard bipolar winding diagram re-drew itself into a toroidal knot—a Möbius coil. The pinouts changed. Instead of A+, A-, B+, B-, the labels shifted to: Ψ1, Ψ2, Ψ3, Ψ4 . Below the diagram, a single line of text appeared: "When driven at 26.10 kHz, the rotor becomes a temporal stator." Elara’s breath caught. She was a robotics engineer, not a physicist. But she knew that a stepper motor moved in discrete steps by energizing coils in sequence. If you drove it at exactly 26.10 kHz—not 26.1, not 26.11, but 26.10 —the magnetic field wouldn't just rotate. According to this schematic, it would fold. She scrolled down. Page four was no longer torque curves. It was a handwritten journal entry, scanned in Aldric’s neat script.

"Day 43: Built the bj42d15 with graphene windings and a beryllium-copper rotor. Applied 26.10 kHz square wave via the Ψ-configuration. The rotor didn’t move. Instead, the air around it grew cold. My watch ran backward for 11 seconds."

Page five:

"Day 47: Placed a live mouse in a Faraday cage 10cm from the motor. Ran the sequence for 3 seconds. The mouse appeared on the other side of the lab, inside a sealed glass jar. Alive. Unharmed. The jar was manufactured in 2029. Today is 2026."

Elara’s hands trembled. She looked at the small, unassuming motor sitting in the evidence locker camera feed on her second monitor. It was the size of a spice jar. Black casing. Four thin wires. It looked like something from a 3D printer. Page six was the last. Aldric’s handwriting had become jagged, panicked.

"It doesn't move matter through space. It moves the observer through time. Each step is a Planck-length shift along a closed timelike curve. I’ve run it for 10 seconds at 26.10 kHz. I’ve seen the library’s east wing as it was in 1987. The problem is… I’m no longer sure which version of me wrote this entry. If you’re reading this, do not—" bj42d15 26v10 stepper motor datasheet

The text cut off. The rest of the page was a single line of motor control code: digitalWrite(Ψ1, HIGH); delayMicroseconds(19.157); digitalWrite(Ψ2, HIGH); ... The final line: "The datasheet is the key. The motor is the lock. The frequency is the turning." Elara closed the PDF. The cursor blinked. Then her phone rang. Caller ID: Prof. Aldric Kaine . But the date on her watch had just ticked backward by one second. And somewhere in the lab, the little black stepper motor clicked once—a single, perfect 1.8-degree step into yesterday.

BJ42D15-26V10 is a NEMA 17 hybrid stepper motor manufactured by Keli Motor, commonly used as an OEM component in Creality 3D printers (like the Ender 3 series). While detailed official datasheets are often difficult to find, technical communities and manufacturer documentation for near-identical variants (like the 26V09 or 26V12) provide the following specifications: Technical Specifications Step Angle : 1.8° (200 steps per revolution). Rated Current 0.84A per phase Input Voltage : Maximum 24V DC. Phase Voltage (Nominal) Holding Torque : Approximately 2.86 kg·cm (0.28 N·m). Inductance : ~9.3 mH. Resistance : ~5.75 Ω. Physical Dimensions Official Creality 42-34 Stepper Motor with Pressed on Fitting - 3D

BJ42D15-26V10 is an OEM NEMA 17 stepper motor manufactured by Hunan Keli Motor Co., Ltd. . It is primarily used in Creality 3D printers (such as the Ender 3 S1) for movement along the X or Y axes. Technical Specifications Based on its design as a "42-34" series motor, the following technical profile applies: Step Angle : 1.8° (200 steps per revolution). Rated Current : 0.84A per phase. Phase Resistance Holding Torque : 0.4 N.m (approx. 2.86 kg.cm). Nominal Voltage : Often listed at 5.04V DC internally, though driven at 12V or 24V by the printer's controller. Phase Inductance : ~8.8 mH. Physical Dimensions How to choose a power supply for my stepper motor? - StepperOnline The BJ42D15-26V10 is a 2-phase NEMA 17 bipolar

BJ42D15 26V10 Stepper Motor: Complete Datasheet & Technical Deep Dive Introduction In the world of precision motion control, the stepper motor remains a fundamental component for applications requiring accurate positioning without the need for feedback encoders. Among the myriad of models available, the BJ42D15 26V10 stepper motor stands out as a robust, high-torque NEMA 17 frame motor. However, finding an official, unified datasheet for this specific variant can be challenging due to branding variations and OEM distribution. This article serves as a comprehensive technical resource , aggregating all known electrical, mechanical, and thermal specifications for the BJ42D15 26V10. By the end of this guide, you will have all the data required to integrate this motor into your CNC machine, 3D printer, medical device, or industrial automation project. Part Number Breakdown: Decoding "BJ42D15 26V10" Before diving into the raw data, let's deconstruct the nomenclature. Understanding the part number helps in cross-referencing and sourcing.

BJ: Typically denotes the manufacturer series (often associated with "BJ Motion" or generic Chinese high-torque series). 42: Refers to the NEMA frame size. The motor's faceplate is approximately 42mm x 42mm (NEMA 17 standard). D15: Indicates the body length or stack length. "D15" usually corresponds to a 40mm to 48mm depth (excluding the shaft), placing it in the "medium stack" category. 26V10: This is the critical electrical identifier. It signifies a rated voltage of 26V and a rated current of 1.0A per phase .

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The BJ42D15-26V10 is a 2-phase NEMA 17 bipolar stepper motor manufactured by Hunan Keli Motor. It is commonly found as a stock component in Creality 3D printers, such as the Ender 3 series, typically used for the X, Y, or Z axes. Key Features & Specifications Step Angle : 1.8∘1.8 raised to the composed with power (200 steps per revolution). Rated Current : Approximately per phase. Note : While some Creality variants are rated up to , technical discussions suggest is the standard for the 34mm height models like the BJ42D15. Input Voltage : Maximum Holding Torque : Approximately Physical Dimensions : Frame Size : NEMA 17 ( Motor Height : (often referred to as a "42-34" motor). Shaft : diameter, typically "D-shaped" for secure gear mounting. Performance Characteristics Creality Ender 3 Stock Factory Vref · GitHub

Dr. Elara Vance stared at the blinking cursor on her terminal. The lab was silent except for the low hum of the climate-controlled archive. On her screen was the only clue the university’s investigation team had given her: a file name. bj42d15 26v10 stepper motor datasheet.pdf It looked mundane. Boring, even. A spec sheet for a hybrid stepper motor—bipolar, NEMA 17 frame size, 42mm body, 1.8-degree step angle. The "26v10" likely meant 2.6 volts at 1.0 amperes per phase. She’d seen a hundred such documents. But this one had been encrypted with a military-grade timestamp, locked inside the personal drive of Professor Aldric Kaine, who had vanished three weeks ago. And the university’s AI security watchdog had flagged it as a "cognitive hazard." Elara took a sip of cold coffee and double-clicked. The PDF opened normally. Page one: mechanical drawings. Page two: wiring diagrams. Page three: torque-speed curves. She squinted. Nothing. Then she noticed the pull-down menu at the bottom of the reader: Layers . There were five layers. The first four were the standard datasheet. The fifth was labeled d15_schematic . She clicked it. The diagram warped. The standard bipolar winding diagram re-drew itself into a toroidal knot—a Möbius coil. The pinouts changed. Instead of A+, A-, B+, B-, the labels shifted to: Ψ1, Ψ2, Ψ3, Ψ4 . Below the diagram, a single line of text appeared: "When driven at 26.10 kHz, the rotor becomes a temporal stator." Elara’s breath caught. She was a robotics engineer, not a physicist. But she knew that a stepper motor moved in discrete steps by energizing coils in sequence. If you drove it at exactly 26.10 kHz—not 26.1, not 26.11, but 26.10 —the magnetic field wouldn't just rotate. According to this schematic, it would fold. She scrolled down. Page four was no longer torque curves. It was a handwritten journal entry, scanned in Aldric’s neat script.

"Day 43: Built the bj42d15 with graphene windings and a beryllium-copper rotor. Applied 26.10 kHz square wave via the Ψ-configuration. The rotor didn’t move. Instead, the air around it grew cold. My watch ran backward for 11 seconds."

Page five:

"Day 47: Placed a live mouse in a Faraday cage 10cm from the motor. Ran the sequence for 3 seconds. The mouse appeared on the other side of the lab, inside a sealed glass jar. Alive. Unharmed. The jar was manufactured in 2029. Today is 2026."

Elara’s hands trembled. She looked at the small, unassuming motor sitting in the evidence locker camera feed on her second monitor. It was the size of a spice jar. Black casing. Four thin wires. It looked like something from a 3D printer. Page six was the last. Aldric’s handwriting had become jagged, panicked.

"It doesn't move matter through space. It moves the observer through time. Each step is a Planck-length shift along a closed timelike curve. I’ve run it for 10 seconds at 26.10 kHz. I’ve seen the library’s east wing as it was in 1987. The problem is… I’m no longer sure which version of me wrote this entry. If you’re reading this, do not—"

The text cut off. The rest of the page was a single line of motor control code: digitalWrite(Ψ1, HIGH); delayMicroseconds(19.157); digitalWrite(Ψ2, HIGH); ... The final line: "The datasheet is the key. The motor is the lock. The frequency is the turning." Elara closed the PDF. The cursor blinked. Then her phone rang. Caller ID: Prof. Aldric Kaine . But the date on her watch had just ticked backward by one second. And somewhere in the lab, the little black stepper motor clicked once—a single, perfect 1.8-degree step into yesterday.

BJ42D15-26V10 is a NEMA 17 hybrid stepper motor manufactured by Keli Motor, commonly used as an OEM component in Creality 3D printers (like the Ender 3 series). While detailed official datasheets are often difficult to find, technical communities and manufacturer documentation for near-identical variants (like the 26V09 or 26V12) provide the following specifications: Technical Specifications Step Angle : 1.8° (200 steps per revolution). Rated Current 0.84A per phase Input Voltage : Maximum 24V DC. Phase Voltage (Nominal) Holding Torque : Approximately 2.86 kg·cm (0.28 N·m). Inductance : ~9.3 mH. Resistance : ~5.75 Ω. Physical Dimensions Official Creality 42-34 Stepper Motor with Pressed on Fitting - 3D

BJ42D15-26V10 is an OEM NEMA 17 stepper motor manufactured by Hunan Keli Motor Co., Ltd. . It is primarily used in Creality 3D printers (such as the Ender 3 S1) for movement along the X or Y axes. Technical Specifications Based on its design as a "42-34" series motor, the following technical profile applies: Step Angle : 1.8° (200 steps per revolution). Rated Current : 0.84A per phase. Phase Resistance Holding Torque : 0.4 N.m (approx. 2.86 kg.cm). Nominal Voltage : Often listed at 5.04V DC internally, though driven at 12V or 24V by the printer's controller. Phase Inductance : ~8.8 mH. Physical Dimensions How to choose a power supply for my stepper motor? - StepperOnline

BJ42D15 26V10 Stepper Motor: Complete Datasheet & Technical Deep Dive Introduction In the world of precision motion control, the stepper motor remains a fundamental component for applications requiring accurate positioning without the need for feedback encoders. Among the myriad of models available, the BJ42D15 26V10 stepper motor stands out as a robust, high-torque NEMA 17 frame motor. However, finding an official, unified datasheet for this specific variant can be challenging due to branding variations and OEM distribution. This article serves as a comprehensive technical resource , aggregating all known electrical, mechanical, and thermal specifications for the BJ42D15 26V10. By the end of this guide, you will have all the data required to integrate this motor into your CNC machine, 3D printer, medical device, or industrial automation project. Part Number Breakdown: Decoding "BJ42D15 26V10" Before diving into the raw data, let's deconstruct the nomenclature. Understanding the part number helps in cross-referencing and sourcing.

BJ: Typically denotes the manufacturer series (often associated with "BJ Motion" or generic Chinese high-torque series). 42: Refers to the NEMA frame size. The motor's faceplate is approximately 42mm x 42mm (NEMA 17 standard). D15: Indicates the body length or stack length. "D15" usually corresponds to a 40mm to 48mm depth (excluding the shaft), placing it in the "medium stack" category. 26V10: This is the critical electrical identifier. It signifies a rated voltage of 26V and a rated current of 1.0A per phase .