Adding a 10:1 gear reducer to a 1,200-rpm stepper motor might boost the ... Stepper motors generally are not available in frame sizes larger than NEMA 34, with most applications falling in NEMA 17 ...

Nanotec has created low-noise planetary gearboxes for brushless DC and stepper motors with NEMA 17 flanges (42mm, 1.7in). “With the GP42-N series,” according to the company, “the helical toothing ...