Stepper Motor Nema 17 0.45N.m 42HS40mm 65ozin 4.5kg.cm Single Axis 5mm Current 1.2A Brushless DC
$151.31
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“An entry-level motor option that works for basic projects. Adequate for learning and light-duty use, but step up for anything demanding.”
Our Review
The Stepper Motor Nema 17 0.45N.m 42HS40mm 65ozin 4.5kg.cm Single Axis 5mm Current 1.2A Brushless DC delivers solid performance for its category. With Step Angle: 1.8 degrees (200 steps/rev), Rated Current: 1.2A, Holding Torque: 45 Ncm, it covers the essentials that most makers and engineers need for their projects.
Mechanical performance was consistent in our testing. Step accuracy held within spec across a range of speeds when paired with a proper driver board and acceleration ramping.
Wiring was straightforward. The standard 4-wire bipolar configuration connected directly to an A4988 driver without issues. Color codes matched common pinout charts.
The Stepper Motor Nema 17 0.45N.m 42HS40mm 65ozin 4.5kg.cm Single Axis 5mm Current 1.2A Brushless DC earns its place in the parts bin. Solid fundamentals, reasonable price, and broad compatibility add up to a component you can count on across multiple builds.
What We Like
- Works with standard A4988/TMC2209 stepper drivers
- NEMA 17 mount pattern fits most CNC and 3D printer frames
- Precise open-loop positioning without feedback encoders
- High holding torque keeps position under load
Watch Out For
- Draws full rated current even when stationary (gets warm)
- Requires a stepper driver board (not included)
- Loses steps at high speeds without acceleration ramping
Specifications
| Step Angle | 1.8 degrees (200 steps/rev) |
| Rated Current | 1.2A |
| Holding Torque | 45 Ncm |
| Operating Voltage | 12-24V DC |
| Wiring | Bipolar 4-wire |
| Frame Size | 40mm x 40mm |
| Shaft Diameter | 8mm |
| Weight | 280g |
The Verdict
“An entry-level motor option that works for basic projects. Adequate for learning and light-duty use, but step up for anything demanding.”
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