Planetary gearbox, 80 mm frame, 25:1
The GBX0800251401F is a straight-tooth planetary gearbox in the 80 mm diameter frame size, delivering a 25:1 reduction ratio. Continuous output torque is 110 Nm at 100 rpm and 30 °C, with a peak capability of 176 Nm under the same conditions. Rated service life is 30,000 hours at 100 rpm and 30 °C — the lubricant is sealed for life, so no oil changes are needed over that interval.
Torque, backlash, and mounting constraints
Maximum torsional backlash is 14 arc-minutes — this is a standard-precision planetary, not a zero-backlash unit. For positioning applications that need tighter repeatability, a preloaded or helical-gear stage would be the next step up. Torsional rigidity is 6.5 N·m/arcmin, which means the gearbox twists about 17 arc-minutes under full rated continuous torque. The shaft output seal is rated IP54, so it handles dust and splash but not washdown. Maximum radial force on the output shaft is 650 N at mid-span for the 30,000-hour service life; axial force is limited to 900 N over the same duty. The shaft is C45 steel, and the housing is black anodized aluminium.
Obsolete — sourced through surplus channels
Schneider Electric lists the GBX0800251401F as obsolete. No direct successor order code is published. The part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. Efficiency is 94 % at rated load, and the noise level measures 60 dB at 1 m under no-load conditions — figures that hold as long as the gearbox is within its service life.