Micro stepper motor, 8 mm diameter
SKU 2846-8MMSTEPPEREAN 8219671109482Item type: AssembledActuators
Description
Ultra-small bipolar stepper motor, Dimensions (mm): 8 mm (diameter) x 9.2 (length), motor shaft (mm): 0.8 (diameter) x 4 (length), 3-volt supply, weight: 2 grams. Ideal for projects requiring extremely small dimensions such as: robotics, automation, etc.
Thanks to its 18-degree step angle and 20 steps per revolution capability, it offers smooth and reliable control. The high torque, low noise, and coil resistance of 40Ω±7% make it ideal for demanding applications.
Note: supplied without wires soldered on the phases.
Dimensions

- Dielectric strength: 3 mA Max
- Operating temperature range: -10~+50 ℃
- Noise: 50 dB Ref.
- Output shaft diameter: 0.8mm
- Output shaft length: long shaft 4mm, short shaft 3.5mm
- Copper gear outer diameter: 2.0mm (9 teeth, 0.2 module)
- Weight: 6g (Ref.)
- Color: Silver
Technical details
| Dimensions (mm) | 8 mm (diameter) x 9.2 (length) |
|---|---|
| motor shaft (mm) | 0.8 (diameter) x 4 (length), 3-volt supply |
| weight | 2 grams |
| Rated voltage | DC 3.3V (compatible with 5V) |
| Coil resistance | 40Ω ±7% |
| Number of phases | 2 phases |
| Step angle | 18 degrees |
| Excitation method | 2 Phase Excitation |
| Drive mode | Bi-polar Drive |
| Pull-In Torque | 5 gf.cm Min, No Load |
| Pull-Out Torque | – gf.cm Min |
| Maximum response frequency | >800 pps, No Load |
| Maximum starting frequency | >1000 pps, No Load |
| Insulation class | Class F |















