Planetary gearbox, 80 mm frame, 8:1 reduction
The GBX0800080552F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 80 mm outer diameter, with an 8:1 reduction ratio. Continuous output torque is 50 N.m at 100 rpm and 30 °C; maximum output torque reaches 80 N.m under the same conditions. Rated service life is 30,000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no scheduled re-greasing needed in that window.
Torque, backlash, and force limits
Maximum torsional backlash is 9 arc-minutes — typical for a precision planetary stage at this price point; if your application needs under 5 arc-min, this isn't the box. Torsional rigidity is 6 N.m/arcmin, meaning the output shaft twists 1 arc-minute per 6 N.m of applied torque — useful for estimating deflection under load. Maximum axial force (Fa) is 1200 N for a 10,000-hour life at 100 rpm and 30 °C, derating to 900 N for the full 30,000-hour service life. Maximum radial force (Fr) at mid-span on the output shaft is 950 N for 10,000 hours, dropping to 650 N for 30,000 hours — both at 100 rpm and 30 °C.
Lifecycle and sourcing — obsolete, sourced on request
Available through independent surplus channels; quantities are lot-specific and confirmed at RFQ. The black anodized aluminium housing and C45 steel shaft are standard for this class — the IP54 shaft output seal means it's splash-resistant but not washdown-rated.