Nema 11 + Planetary gearbox (simplified view)
grabcad
A NEMA 11 (50-51mm) stepper motor features an integrated planetary gearbox with a simplified gear ratio of 13.73:1 (14:1), while the 19.19:1 (19:1) gearbox has the same size. The part number is 11HS20-0674S-PG14 (PG19). The motor shaft measures 5x18mm, and the gearbox shaft is 6x15mm in diameter.
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