Description
The 42HM48-1684 NEMA 17 Stepper Motor is a high-resolution motion control solution engineered for applications requiring superior positional accuracy. Providing a holding torque of 4.4 kg-cm at 1.68A current per phase, this motor features a 0.9° step angle, resulting in 400 steps per revolution for twice the precision of standard 1.8° motors. Its robust design and simple open-loop control make it an ideal choice for high-precision, low-speed environments such as 3D printers, CNC routers, mills, XYZ plotters, and professional camera platforms. The shaft is precision-machined for a secure fit with pulleys and drive gears, ensuring reliable, slip-free performance.
Key Features
- High Resolution: Features a 0.9° step angle, offering 400 steps per revolution for finer control and smoother motion.
- Precise Motion: Rotation angle is directly determined by input pulses, with speed proportional to the pulse frequency.
- High Accuracy: Delivers consistent positioning with a step accuracy of approximately 3% to 5%.
- Excellent Responsiveness: Highly reliable performance during rapid starting, stopping, and reversing sequences.
- Cost-Effective: Eliminates the need for expensive, complex electronic control circuitry thanks to its efficient open-loop design.
Important Operational Notes
- Dimensions and weight specifications are subject to a margin of error of ±2%.
- Ensure correct mounting and alignment to prevent unwanted mechanical resonances.
- This motor is not recommended for operation at extremely high speeds.
Package Includes
- 1 x 42HM48-1684 NEMA 17 4.4 kg-cm Stepper Motor – Round Type Shaft
Technical Specifications
| Parameter | Specification |
|---|---|
| Item Type | NEMA 17 Stepper Motor |
| Model No. | 42HM48-1684 |
| Shaft Type | Round |
| Step Angle | 0.9° (400 steps/rev) |
| Rated Current | 1.68 A |
| Nominal Voltage | 3 V |
| Resistance | 1.65 Ω |
| Inductance | 4.1 mH |
| Shaft Diameter | 5 mm |
| Shaft Length | 21 mm |
