1pcs 90 Degree Reducer Helical Gear Right Angled Planetary Gearbox for Nema 17 23 34 Stepper Motor 40 60 80 90110 130mm Servo Motor(PLMG090 16mm Input,Speed Ratio 5 to 1)
$2,966.55
Disclosure: CircuitTrail earns from qualifying purchases as an Amazon Associate. Prices and availability may change.
“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 1pcs 90 Degree Reducer Helical Gear Right Angled Planetary Gearbox for Nema 17 23 34 Stepper Motor 40 60 80 90110 130mm Servo Motor(PLMG090 16mm Input,Speed Ratio 5 to 1) delivers solid performance for its category. With Step Angle: 90 degrees, Rated Current: 1.7A per phase, Holding Torque: 40 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.
Overall, the 1pcs 90 Degree Reducer Helical Gear Right Angled Planetary Gearbox for Nema 17 23 34 Stepper Motor 40 60 80 90110 130mm Servo Motor(PLMG090 16mm Input,Speed Ratio 5 to 1) fills its role well. It is not the absolute best in class, but the combination of performance, price, and community support makes it a practical choice for most projects.
What We Like
- High holding torque keeps position under load
- Reliable bipolar winding configuration for consistent torque
- Smooth microstepping reduces vibration and noise
- Works with standard A4988/TMC2209 stepper drivers
Watch Out For
- Requires a stepper driver board (not included)
- Audible resonance at certain speed ranges
- No position feedback — open-loop only
Specifications
| Step Angle | 90 degrees |
| Rated Current | 1.7A per phase |
| Holding Torque | 40 Ncm |
| Operating Voltage | 24V DC |
| Wiring | Bipolar 4-wire |
| Frame Size | 130mm x 130mm |
| Shaft Diameter | 8mm |
| Weight | 350g |
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.”
Related Motors & Actuators Components
