The GBX0800091402F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for servo and stepper motor output stages where compactness and moderate precision matter. The 9:1 reduction ratio steps motor speed down while multiplying torque — at 100 rpm input the continuous output torque is 130 N.m (1150.6 lbf.in), with a peak ceiling of 208 N.m (1841 lbf.in) for short-duration loads. Efficiency sits at 94 % — a straight-tooth planetary loses about 6 % of input power to gear mesh friction, which is typical for this architecture. Helical gears would push that higher but add axial thrust the output bearings have to carry; straight teeth keep the build compact and the shaft loads predictable.
Backlash, service life, and the 80 mm envelope
Maximum torsional backlash is 14 arcmin — this is a standard-precision planetary, not a zero-backlash unit for a rotary table or indexing axis. For conveyor drives, pick-and-place Z axes, or general positioning where the load holds position through the motor brake, 14 arcmin is acceptable. If the application needs under 5 arcmin, you step up to a precision or harmonic gearbox. Rated service life is 30000 hours at 100 rpm and 30 °C ambient — that is about 3.4 years of continuous 24/7 operation. The gearbox is lubricated for life, so no oil-change intervals to schedule. The ambient temperature window runs -25 °C to 90 °C, which covers most indoor industrial environments without derating. The output shaft carries a maximum radial force of 650 N at mid-span for the full 30000-hour life, or 950 N if you accept a 10000-hour life. Axial force on the shaft is 900 N for 30000 hours, 1200 N for 10000 hours. These numbers matter when you hang a pinion, pulley, or coupling off the output — overshoot them and the bearing race shortens the service life faster than the gear teeth wear. Shaft output protection is IP54 — the seal keeps dust and splash out of the output bearing, but the gearbox body is not submersible. The housing is black anodized aluminium, 80 mm external diameter, with C45 steel shafts. Torsional rigidity is 6.5 N.m/arcmin — the shaft wind-up under full continuous torque is about 20 arcmin, which adds to the backlash figure in the total positioning error budget.
Obsolete — sourcing reality for a legacy motion component
Schneider Electric has marked the GBX0800091402F as obsolete. No official successor part number is published in the lifecycle record — the GBX series has been superseded by newer planetary families (Lexium BPH / BSH) that use a different mounting interface and output shaft geometry. A direct drop-in replacement does not exist; a motor adapter plate or coupling redesign is likely needed. For a line running this exact gearbox, the practical path is sourcing new-old-stock or surplus units through independent distribution. If you are designing a new axis, the GBX0800091402F is not the part to spec; look at the current Lexium planetary range for an active alternative with comparable 80 mm frame size and 9:1 ratio.