What the GBX1200050843D actually is
The GBX1200050843D is a planetary gearbox from the Schneider Electric GBX family, sized at a 120 mm housing diameter with a 5:1 single-stage reduction and straight-cut gearing — the format typically paired with a servo or stepper drive when a compact inline speed reducer is needed. Listed at 96 % efficiency at 1.53 g.cm² moment of inertia and 65 dB noise at 1 m on no-load, the unit ships lubricated for life in a black anodized aluminium housing with a C 45 steel output shaft, so no oil-change interval sits on the maintenance schedule.
Torque, backlash, and the duty envelope
Continuous output torque is rated 195 N.m with a maximum output torque of 312 N.m, torsional rigidity of 12 N.m/arcmin, and maximum torsional backlash of 8 arc.min — figures that govern positioning accuracy and peak-load handling on the driven shaft. Service life is stated at 30000 h at 100 rpm at 30 °C, the same reference condition the axial and radial load limits are anchored to: 2100 N axial and 1500 N radial at mid-distance from the output shaft over that 30000 h, dropping to higher short-term load capacity (2800 N axial / 2000 N radial) when the duty is capped at 10000 h.
Mounting, environment, and what the IP code actually covers
Mounting position is unrestricted (any position), the shaft output carries an IP54 rating, and operating temperature spans -25...90 °C — meaning the gearbox tolerates typical industrial cabinet and machine-base ambient ranges but only the shaft seal is weather-protected, so the housing itself needs to stay inside an enclosure or sheltered location.