Description
The 42HS40-1704 NEMA 17 Stepper Motor is a reliable choice for machines requiring precise position control. This motor provides 0.72 N-m (approximately 7.2 kg-cm) of torque at 1.7A current per phase. As a brushless DC motor, it offers a long service life that depends on the longevity of its bearings, and it utilizes a simple open-loop control mechanism that eliminates the need for complex electronic circuitry. The motor’s shaft is precision-machined to ensure a secure grip for pulleys and drive gears, helping to prevent stalling or slipping during operation. It is highly suitable for high-precision, low-speed applications such as 3D printers, CNC routers, mills, XYZ plotters, and camera platforms.
Key Features
- Precise Motion: The rotation angle of the motor is determined by the input pulse, with speed being proportional to the frequency of those pulses.
- High Accuracy: Delivers consistent positioning with a step accuracy of approximately 3% to 5%.
- Excellent Responsiveness: Provides superior performance when starting, stopping, and reversing based on pulses from the stepper motor driver.
- Cost-Effective: Open-loop control makes the motor a more affordable solution by excluding the need for complex control electronics.
Important Operational Notes
- Dimensions and weight specifications are subject to a margin of error of ±2%.
- Improper mounting can lead to unwanted resonances.
- This motor is not designed for operation at extremely high speeds.
Package Includes
- 1 x 42HS40-1704 NEMA 17 7.2 kg-cm Stepper Motor – Round Type Shaft
Technical Specifications
| Parameter | Specification |
|---|---|
| Item Type | NEMA 17 Stepper Motor |
| Model No. | 42HS40-1704 |
| Shaft Type | Round |
| Step Angle | 1.8° |
| Operating Current | 1.7 A |
| Number of Leads | 4 |
| Resistance | 3 Ω |
| Inductance | 6.2 |
| Rotor Inertia | 102 g-cm² |
