80 mm planetary gearbox — 16:1 reduction, 120 N.m continuous
The GBX0800161003F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 80 mm outer diameter, with a 16:1 reduction ratio. Continuous output torque is 120 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 192 N.m under the same conditions. Rated efficiency is 94 %, and the gearbox is lubricated for life — no scheduled oil changes. Service life is 30 000 hours at 100 rpm and 30 °C, which covers most continuous-duty conveyor and indexing applications.
Load ratings and mechanical limits
Maximum torsional backlash is 14 arc.min — this is a standard-precision gearbox, not a zero-backlash unit, so it suits positioning where some lost motion is acceptable (pick-and-place, rotary indexing). Maximum axial force (Fa) is 1200 N at 100 rpm for 10 000 hours, or 900 N for the full 30 000-hour service life. Maximum radial force (Fr) is 950 N at 100 rpm for 10 000 hours, or 650 N for 30 000 hours — both measured at mid-distance from the output shaft. Torsional rigidity is 6.5 N.m/arcmin, which gives a stiffness figure for calculating windup under load. The shaft output seal is rated IP54, so the gearbox handles dust and splash exposure but is not suitable for washdown or submersion.
Obsolete — sourced through independent channels
Schneider Electric lists the GBX0800161003F as obsolete. No official successor or cross-reference is recorded from the manufacturer. The part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. For a BOM that requires this exact reduction ratio and 80 mm frame size, the GBX0800161003F remains a direct fit.