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Nema 17 Stepper Motor 3PCS High Accuracy 145mNm/20.53oz.in High Torque 20.5mm(0.81inch Bipolar 1A-3.5V 1.8 Degree 2 Phase 4 Lead for 3D Printer/CNC Machine Tool

4.3 (2) Write Review
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$27.76

$ 13 .99 $13.99

In Stock

1.Size:1.66x1.66x0.81 Inch


2.:5


About this item

  • [Specifications]: Size: Nema 17 Bipolar Stepper Motor: 42x42x20.5MM / 1.66x1.66x0.81inch; Shaft Diameter: Φ 5mm (D Shaft Φ 4.5mm); Shaft Length: 24±0.5mm; 2 phase, 4 wires: Black (A+), Green (A-), Red (B+), Blue (B-); Step Angle: 1.8 degree; Phase: 2; Rated Current: 1A; Phase Resistance: 3.5Ω±10%Ω; Phase Inductance: 3.8mH±20%; Holding Togque: 145mNm (20.53oz.in); Rotor Inertia: 14.5g.cm²; Weight: 0.12kg.
  • [Simple Control]: The Nema 17 stepper motor only needs to provide the corresponding pulse signal, and does not need a feedback system, making the control circuit relatively simple.
  • [High Reliability]: On account of the simple structure and fewer parts, the stepper motor has high reliability and stable and reliable long-term work.
  • [Industrial Applications]: The stepper motor is widely utilized in mechanical equipment, conveying systems. To provide power drive, control, positioning and other functionalities. It can cater to various requirements for high-speed movement, high torque or high precision in motor and other industrial production processes.
  • [Packing List]: Including 3 pieces of Nema 17 stepper motors with 20.5mm size, each equipped with a cable. If you have any questions or need help, please feel free to contact us, we will be happy to serve you.


Product Description

Nema17 Stepper Motor-20.5mm

NEMA 17 STEPPER MOTOR COMPATIBLE WITH 3D PRINTER/CNC MACHINE


Count on the Nema 17 stepper motor for dependable operation, built to withstand rigorous use and deliver consistent results time after time. Enjoy a quiet operational experience with the CNC stepper motors, designed to minimize noise and vibration for a peaceful working environment.

The video showcases the product in use.The video guides you through product setup.The video compares multiple products.The video shows the product being unpacked.
Nema17 Stepper Motor-20.5mm

PRODUCT SPECIFICATIONS

Frame Size 42 x 42mm
Body Length 20.5mm
Shaft Diameter Φ 5mm ( D Shaft Φ 4.5mm )
Shaft Length 24mm
Motor Type Bipolar Stepper
Number of Leads 4
Step Angle 1.8 degree
Rated Voltage 3.5V
Rated Current 1A
Phase Resistance 3.5Ω
Phase Inductance 3.8mH
Holding Togque 145mNm (20.53oz.in)
Rotor Inertia 14.5g.cm²

  • Nema 17 stepper motors are commonly used in applications such as CNC machines, 3D printers, robotics, and automated machinery.

  • Nema 17 stepper motors offer precise and accurate positioning control, high torque for their size, and easy control using digital circuits.

  • A microstepping drive method is typically the best option for Nema 17 stepper motor. This can provide more accurate positioning with less noise and vibration compared to full-stepping.

  • When installing a Nema 17 stepper motor, it is important to ensure proper alignment, secure mounting, and adequate cooling to prevent overheating. Regular maintenance may include checking for signs of wear, cleaning the motor and drive system.


Thomas B Nielsen
2025-09-05 16:01:12
quick arrival and is what is expected. Works well, bought to build out a 11'x6' CNC router flattening table and the motor's (paired) are able to drive the sled up/down the table.
JE
2025-09-04 13:21:18
Looks like it was used as a hockey puck. Wires are damaged in many spots. Still functions as a stepper but serious cosmetic damage.
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