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28BYJ-48 5V DC Unipolar Stepper Motor

K-TECHNICS
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KSh300.00

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What makes the 28BYJ-48 so unique and powerful for its size is its internal mechanics. It operates on a safe, standard 5V DC line, and houses a 1/64 reduction gear train inside its tiny metallic shell. This gearing drastically slows down the motor's top speed, but in return, it multiplies the torque significantly. This allows this small, affordable motor to push, pull, and lift much heavier loads than an ungeared motor of the same size. Typically paired with a ULN2003 Darlington transistor array driver board, it is the easiest, most cost-effective way to introduce automated, precision movement to your Arduino or Raspberry Pi projects.

Key Features & Functional Advantages

  • Incredible Precision: Thanks to the internal gearbox, it requires approximately 2048 individual steps to complete one full revolution of the output shaft, giving you an ultra-fine step angle of ~0.176 degrees.

  • Geared for Torque: The internal 1/64 plastic reduction gear train transforms high-speed, low-torque electrical pulses into slow, muscular physical pulling power.

  • Unipolar Design: Features a 5-wire interface (one common power wire and four coil wires), making it exceptionally easy to control with simple, low-cost driver boards like the ULN2003.

  • Plug-and-Play Connector: Comes pre-wired with a standard 0.1" pitch 5-pin JST-style connector, ensuring you never have to solder delicate coil wires manually.

  • Flattened Output Shaft: The 5mm diameter output shaft features a flat "D" profile, preventing your gears, pulleys, or wheels from slipping when the motor is under heavy torque.

Perfect For

  • Automated Dispensers: The go-to motor for driving the internal rotating auger in custom pet feeders, pill dispensers, and DIY vending machines.

  • Camera Sliders & Gimbals: Providing the ultra-smooth, perfectly paced, and repeatable linear motion required for time-lapse photography rigs.

  • Smart Home Automation: Opening and closing automated window blinds, controlling HVAC air-conditioning vents, or rotating custom security camera mounts.

  • Educational Prototyping: The absolute best motor for learning how basic CNC (Computer Numerical Control) logic, G-code, and 3D printing mechanics work on a breadboard.

Technical Specifications

  • Motor Model: 28BYJ-48

  • Motor Type: Unipolar Stepper

  • Operating Voltage: 5.0 Volts DC

  • Number of Phases: 4

  • Reduction Gear Ratio: Approximately 1/64 (Actual: 1/63.68)

  • Steps Per Revolution (Output Shaft): ~2048 steps (in half-step mode)

  • Output Step Angle: ~0.176°

  • DC Coil Resistance: 50Ω ±7%

  • Holding Torque: ~34.3 mN.m (at 5V, 120Hz)

  • Shaft Type: 5mm D-Shaft

  • Weight: 37 grams

Ensure your order is placed by 2PM to guarantee next-day delivery! Our commitment to prompt service includes a 24-hour delivery system through our network of carriers, aimed at ensuring your package arrives right on schedule.

Please note, a delivery fee of €4.99 applies for orders under €50. For those in remote areas, be aware that our couriers may apply an extra surcharge. This additional fee helps cover the costs of transporting your items to harder-to-reach locations.