Planetary gearbox, 80 mm frame, 9:1 — now obsolete
The GBX0800090552F is a 80 mm-diameter planetary gearbox from Schneider Electric's GBX series, with a 9:1 reduction ratio and straight-tooth gearing. It delivers 130 N.m continuous output torque at 100 rpm and 30 °C, with a maximum of 208 N.m under the same conditions.
Torque, backlash, and service life at 100 rpm
Rated for 30,000 hours service life at 100 rpm and 30 °C, with continuous torque of 130 N.m and peak torque of 208 N.m. Torsional backlash is 14 arcmin — typical for a straight-tooth planetary at this price point; if your application needs under 10 arcmin, this won't hold position repeatability. Efficiency is 94 %, which is reasonable for a single-stage straight-tooth planetary. Noise level is 60 dB at 1 m, no-load — audible but not intrusive in a machine bay. Maximum axial force on the output shaft is 1200 N for a 10,000-hour life, derating to 900 N for the full 30,000-hour target. Radial force at mid-span is 950 N (10,000 h) or 650 N (30,000 h). These are the limits that govern bearing life — overshoot them and the gearbox wears out well before the 30,000-hour mark.
Construction and environmental sealing
Housing is black anodised aluminium, shaft is C45 steel. The shaft output carries an IP54 rating — protected against dust ingress and splashing water, but not submersion or high-pressure washdown. Ambient operating range is -25 to 90 °C. Lubricated for life — no maintenance ports, no regrease schedule. The gearbox ships as a single unit (package quantity 1).
Sourcing an obsolete planetary gearbox
With the GBX0800090552F officially obsolete, new-stock supply is limited to what independent distributors hold. If a replacement is needed, the BOM position will likely require a different gearbox model and possibly a mounting adapter.