NEMA 17 Geared Stepper Motor Dual Shaft: This compact geared dual shaft stepper motor has a frame size 42-40mm with rated current 1.68a, integrated with a precision planetary gearbox & a length of 9.5mm rear shaft. It is an ideal choice for the applications that require high torque or low speed but high precision motion control.
NEMA 17 Geared Stepper Motor Dual Shaft Specification

- Part Number: 42AI40-1684B-KGXX
- Step Angle: 1.8deg w/o gearbox
- Bi/Unipolar: Bipolar
- Holding Torque: 0.45Nm w/o gearbox
- Rated Current/phase: 1.68A
- Frame Size: 42x42mm
- Motor Length: 40mm
- Number of Leads: 4
- Lead Length: 500mm
- Gearbox Type: Planetary
- Gear Ratio: 4-70:1
- Efficiency: 96%-94%
- Backlash at No-load: 15arcmin-20arcmin
- Gearbox Length: 40mm-51mm
- Shaft Diameter: Φ8mm
- Shaft Length: 21mm
- Keyway Length: 14mm
- Stepper Drive: FLKH2D1228DC
Overall Size

Motor 4 Leads Connection: A+(Black), A-(Green); B+(Red), B-(Blue)
Gearbox Length(L)=40mm for ratio 5/1, 10/1; 51mm for ratio 20/1, 50/1, 100/1.
If you need a PDF data sheet, please send the email to: info@frankhumotor.com!
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