Planetary gearbox, 40 mm, 9:1 ratio
The GBX0400091401F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 40 mm outer diameter and a 9:1 reduction ratio. It delivers 16.5 N.m continuous output torque at 100 rpm and 30 °C, with a torsional backlash of 28 arcmin — a spec that matters for positioning accuracy in indexing or pick-and-place applications where lost motion at reversal adds up.
Efficiency, noise, and service life
Rated 94 % efficiency means about 6 % of input power is lost as heat through the gear mesh — typical for a single-stage planetary with straight teeth, and acceptable for continuous-duty applications where thermal rise is managed by the aluminium housing. Noise level is 55 dB at 1 m, no-load — quiet enough for a lab or light assembly line, but in a steel-frame machine the mounting structure will amplify structure-borne vibration; a compliant coupling or elastomeric mount helps keep the airborne reading. Service life is 30,000 hours at 100 rpm and 30 °C ambient, with the gearbox lubricated for life — no re-greasing interval, which simplifies MRO but means the unit is sealed and non-serviceable once the internal grease degrades.