NEMA stepper motors, 8 to 42 frame.
2-phase, 3-phase and closed-loop hybrids with 1.8° and 0.9° step angles. High-torque rotor designs, custom windings, shafts and connectors for OEM builds.
Series overview
NEMA 17 series (42 mm)
The default choice for 3D printers and compact automation. Six body lengths and optional integrated leadscrew.
NEMA 23 series (57 mm)
Most-requested frame for CNC, robotics and packaging. Closed-loop option adds an encoder for stall-free operation.
NEMA 34 series (86 mm)
High-torque frame for heavy CNC axes, laser cutters and large-format printing. Matched with our PG62 gearbox.
NEMA 42 series (110 mm)
Largest frame for extreme-torque positioning. Built to order with optional brake and custom flanges.
Selection reference
Holding torque at rated current, 2-phase. 3-phase and closed-loop ratings available on request.
| Frame | Size (mm) | Holding torque (N·m) | Step angle | Rated current (A) | Types |
|---|---|---|---|---|---|
| NEMA 8 | 20 × 20 | 0.02 | 1.8° | 0.6 | 2-phase |
| NEMA 11 | 28 × 28 | 0.07 | 1.8° | 0.7 | 2-phase |
| NEMA 14 | 35 × 35 | 0.12 | 1.8° | 1.0 | 2-phase |
| NEMA 17 | 42 × 42 | 0.22–0.65 | 1.8° | 0.4–2.0 | 2-phase |
| NEMA 23 | 57 × 57 | 0.6–3.0 | 1.8° / 0.9° | 2.0–5.6 | 2-phase, 3-phase, closed-loop |
| NEMA 24 | 60 × 60 | 1.2–3.5 | 1.8° | 3.0–5.0 | 2-phase |
| NEMA 34 | 86 × 86 | 2.8–12 | 1.8° | 4.0–7.0 | 2-phase, closed-loop |
| NEMA 42 | 110 × 110 | ≤ 12 | 1.8° | 5.0–8.0 | 2-phase |
Custom windings and shafts
We wind to your voltage and current, machine shafts to drawing, and build integrated motor-plus-gearbox assemblies tested as one unit.