Unipolar Bipolar Stepper Motor is a bifilar‑wound hybrid stepper motor supporting both unipolar and bipolar drive modes with flexible 4‑6‑8 lead wiring options. Following NEMA standard frame sizes and featuring standard 1.8° step angle, this Unipolar Bipolar Stepper Motor delivers easy‑drive performance or high‑torque output as required. Widely adopted for 3D printers, CNC machines, small robots, lab instruments and automation jigs, one single Unipolar Bipolar Stepper Motor fits multiple control solutions and reduces part‑number stock pressure.
Dual‑Mode Compatible Bifilar Winding Design
Unipolar Bipolar Stepper Motor adopts bifilar winding structure. You can switch between Unipolar and Bipolar drive modes only by modifying wiring instead of replacing motor hardware, bringing great flexibility for machine development.
Multiple Lead Options for 4/6/8‑Wire Flexible Connection
Unipolar Bipolar Stepper Motor is available in 4‑wire, 6‑wire and 8‑wire versions. The 8‑lead variant offers maximum flexibility for unipolar or bipolar connection, convenient for retrofitting and replacing existing stepper motors.
Standard 1.8° Step Angle & Full NEMA Frame Coverage
Unipolar Bipolar Stepper Motor comes with industry‑standard 1.8‑degree step angle (200 steps per revolution). It covers mainstream NEMA17, NEMA23, NEMA34 frames with standardized mechanical dimensions for convenient machine design and spare‑part replacement.
One Motor for Two Drive Solutions to Cut SKU Inventory
Unipolar Bipolar Stepper Motor satisfies unipolar low‑cost drive and bipolar high‑torque projects with one part number. It reduces stock item quantity and lowers material management & inventory cost.
Higher Torque Under Bipolar Mode with Full Winding Utilization
When running in Bipolar mode, Unipolar Bipolar Stepper Motor makes full use of winding coils. It delivers around 30% higher torque than unipolar mode at identical frame size for heavy‑load point‑to‑point motion applications.
Simple Unipolar Drive to Lower Controller Hardware Cost
Under Unipolar mode, Unipolar Bipolar Stepper Motor works with simple switch‑type driver chips without H‑bridge circuit. It fits low‑cost light‑load small mechanisms and simplifies control board design.
| Unipolar Bipolar Stepper Motor | |
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Dimensions |
Nema 8(20mm), 11(28mm), 14(35mm), 16(39mm), 17(42mm), 23(57mm), 24(60mm), 34(86mm) |
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Step Angle |
Degree 0.9, 1.2, 1.8(Optional or Customized) |
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Torque |
Up to 350mNm without gearbox |
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Rated Current |
0.1A~10A (A/Phase) |
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Gear type |
Planetary gear motor, worm gear motor, helical gear motor |
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Can be used with |
Planetary gearbox, worm gearbox, helical gearbox |
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Package |
carton/wooden box |
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HS codes |
8501109190 |
Q: How to switch between unipolar and bipolar modes for 8‑lead Unipolar Bipolar Stepper Motor?
A: For 8‑lead Unipolar Bipolar Stepper Motor, switch modes via re‑connection or series‑parallel winding setup. 8‑to‑6‑wire connection for Unipolar mode; 8‑to‑4‑wire connection for Bipolar mode. Please follow our official wiring diagram.
Q: Which mode delivers higher torque, Unipolar or Bipolar?
A: For the same Unipolar Bipolar Stepper Motor, Bipolar mode outputs higher torque with full winding utilization. Unipolar mode only uses half of the winding and delivers relatively lower torque.
Q: Can Unipolar Bipolar Stepper Motor work with ordinary unipolar stepper drivers?
A: Yes, set wiring to Unipolar configuration and ordinary unipolar drivers can drive it, while output torque will follow unipolar‑level performance.
Q: What is the step angle of Unipolar Bipolar Stepper Motor?
A: Standard Unipolar Bipolar Stepper Motor features 1.8° step angle, 200 steps per revolution. 0.9° low step‑angle variant is available as option.
Q: Will Unipolar Bipolar Stepper Motor slide down when vertically mounted after power‑off?
A: Holding torque of Unipolar Bipolar Stepper Motor exists only under power‑on. No self‑locking after power loss. Brake‑equipped version is recommended for vertical loads.
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