Reference: RBD-1960
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The NEMA17 42BYGH40 2-Phase 4-Wire Stepper Motor is a reliable and robust stepper motor, widely used in 3D printers, CNC machines, and automation systems. Featuring a 1.8° step angle and a 3.5kg.cm holding torque, it delivers high precision, smooth motion, and excellent repeatability.
Tested under continuous 24/5 operation for 3 months, this motor has proven durability, making it highly recommended for 3D printing and CNC communities. Its compact 42×42×40mm size ensures easy integration, while the included 50cm JST connector cable ensures quick installation with popular control boards such as MakerBot and Ultimaker.
Whether you are building your own CNC machine or upgrading your 3D printer, this motor provides an ideal balance between torque, performance, and price. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Compact NEMA17 size (42×42×40mm).
Strong 3.5kg.cm holding torque for reliable operation.
1.8° step angle for smooth, accurate positioning.
2-phase, 4-wire hybrid stepper motor.
Rated current 1.7A per phase, voltage 3.4V.
Sturdy build, tested for 6000+ operating hours.
Supplied with 50cm JST connector cable.
Compatible with MakerBot, Ultimaker, and other 3D printer boards.
Ideal for 3D printing, CNC machines, and robotics.
Lightweight and durable design with only 270g weight.
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3D Printers (extruders, X/Y/Z axes).
CNC machines and laser engravers.
Linear gantry and motion systems.
Robotics requiring precise step control.
DIY electronics and automation projects.
Educational prototyping and engineering labs.
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| General Specifications | |
| Model No. | 42BYGH40-1.8-22A |
| Motor Type | NEMA17 Hybrid Stepper, 2-Phase, 4-Wire |
| Step Angle | 1.8° per step |
| Rated Voltage | 3.4V DC |
| Rated Current | 1.7A per phase |
| Holding Torque | 3.5kg.cm (48.6 oz.in) |
| Detent Torque | 180 g.cm |
| Shaft Diameter | 5mm (D-shaft) |
| Winding Resistance | 2 ±10% Ω/phase |
| Winding Inductance | 2 ±20% mH/phase |
| Step Angle Accuracy | ±5% (full step, no load) |
| Cable Length | 50cm (4-pin JST connector) |
| Motor Dimensions | 42×42×40mm |
| Operating Temp. Range | -20°C to +50°C |
| Temperature Rise | ≤ 80°C (at rated current, 2-phase on) |
| Insulation Class | Class B |
| Life Expectancy | ~6000 hours |
| Weight | 270g |
| Shipment Weight | 0.2866 kg |
| Shipment Dimensions | 7 × 5 × 5 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x NEMA17 42BYGH40 2-Phase 4-Wire Stepper Motor for 3D Printers
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