NEMA 8 Geared Stepper Motor: This micro geared stepper motor has a frame size 20-38mm with rated current 0.6a, integrated with a PG series planetary gearbox that has a wide range of gear ratio 4 to 107. It is an ideal choice for the applications that require high torque or low speed but high precision motion control.
NEMA 8 Geared Stepper Motor Specification

- Part Number: 20AI38-0604S-PGXX
- Step Angle: 1.8deg w/o gearbox
- Bi/Unipolar: Bipolar
- Holding Torque: 0.04Nm w/o gearbox
- Rated Current/phase: 0.6A
- Frame Size: 20x20mm
- Motor Length: 38mm
- Number of Leads: 4
- Lead Length: 280mm
- Gearbox Type: Planetary
- Gear Ratio: 4-107:1
- Efficiency: 90%-70%
- Backlash at No-load: 1.0deg-2.0deg
- Gearbox Length: 21.2mm-29.2mm
- Shaft Diameter: Φ6mm
- Shaft Length: 15mm
- D-cut Length: 9mm
- Steppe Drive: FLKH2D1228DC
Overall Size

The gearbox length will be 21.2mm for gear ratio 5/1, 26.2mm for gear ratio 19/1, 31.2mm for gear ratio 64/1, 90/1.
If you need a PDF data sheet, please send the email to: info@frankhumotor.com!
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