12:1 reduction, 120 N.m continuous — where this gearbox fits
The GBX0800120841D is a planetary gearbox from Schneider Electric's GBX series, sized for applications needing a 12:1 reduction ratio and a continuous output torque of 120 N.m. Maximum output torque reaches 192 N.m for peak loads. The straight-tooth design keeps efficiency at 94 %, which matters when every watt of motor power counts in a continuous-duty cycle.
Rigidity, backlash, and life ratings
Torsional rigidity is 6.5 N.m/arcmin — this tells you how much the gearbox twists under load; a stiffer gearbox means better positioning repeatability in indexing or servo-driven axes. Maximum torsional backlash is 17 arc.min, which is typical for a straight-tooth planetary stage without preloading. Service life is rated at 30,000 hours at 100 rpm and 30 °C ambient, with the gearbox lubricated for life — no maintenance schedule for oil changes. The 80 mm external diameter and black anodized aluminium housing keep the package compact and corrosion-resistant. Shaft output is IP54, so it handles dust and splash in a cabinet or on a machine frame, but not washdown. Ambient operating range is -25 to 90 °C.