https://www.skysmotor.co.uk/goods-2533-Nema-8-Geared-Stepper-Motor-8HS11-0204D-PG90-L%3D38mm-with-Planetary-Gearbox-Gear-Ratio-90-1-.html
Nema 8 Geared Stepper Motor 8HS11-0204D-PG90 L=38mm with Planetary Gearbox (Gear Ratio 90:1) for...
This Nema 8 stepper motor with 38mm body and 0.2A rated current, integrated a planetary gearbox of 90.25:1 gear ratio.
geared stepper motorplanetary gearboxnemaratio