Description
Product Overview
The STEPPERONLINE NEMA 17 stepper motor is engineered for high‑precision motion control in telescope mounts and similar applications. Featuring a 0.094° step angle and a planetary gearbox ratio of 19.19:1, it delivers smooth, accurate positioning with good torque. The motor is built from durable metal, weighs 560 g, and operates at 5 V with a rated current of 1.68 A and resistance of 1.65 Ω. Its standard NEMA 17 bipolar 4‑wire configuration ensures compatibility with a wide range of drivers and controllers.
Usage
Designed for astronomy enthusiasts and professionals, this motor excels in equatorial and alt‑azimuth telescope mounts, providing steady tracking for long‑exposure imaging. It is also well‑suited for robotics, CNC machines, and any project requiring precise incremental motion. Its compact dimensions (5.71 × 3.39 × 3.03 in) allow easy installation in confined spaces. 
Why Choose Us
STEPPERONLINE is a trusted brand known for rigorous quality control and reliable performance. This motor carries NEMA certification, ensuring it meets industry standards for safety and durability. With a 4.8‑star rating from verified customers, it demonstrates consistent satisfaction. The metal construction resists wear, and the integrated planetary gearbox reduces the need for external gear sets, simplifying system design.
Key Features
- Precise 0.094° step angle for accurate positioning
- High‑ratio 19.19:1 planetary gearbox for strong torque
- Robust metal housing for long‑term durability
- Standard NEMA 17 bipolar 4‑wire interface for easy integration
- Rated 1.68 A current, 1.65 Ω resistance, optimized for low‑voltage operation
FAQ
What type of driver is compatible with this motor?
Any standard NEMA 17 bipolar 4‑wire stepper driver that can supply up to 2 A current will work, such as the DRV8825 or A4988.
Can this motor be used for continuous rotation?
Yes, with appropriate microstepping settings and a suitable driver, it can provide smooth continuous motion for tracking applications.
Is additional cooling required?
At its rated current of 1.68 A, the motor runs warm but typically does not require extra cooling for normal telescope use. For high‑duty cycles, a small heat sink can be added.
Does the gearbox require lubrication?
The planetary gearbox is pre‑lubricated and sealed, so no maintenance is needed under normal operating conditions.
What is the warranty period?
STEPPERONLINE offers a one‑year limited warranty covering manufacturing defects.
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