Planetary gearbox, 80 mm frame, 4:1 reduction
The GBX0800040701F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for a 3.1 in (80 mm) outer diameter housing. It delivers a 4:1 reduction ratio with a continuous output torque of 1017.8 lbf.in (115 N.m) at 100 rpm and 86 °F (30 °C), and a maximum output torque of 1628.5 lbf.in (184 N.m) under the same conditions. The 9 arc.min maximum torsional backlash and 6 N.m/arcmin torsional rigidity place it in the precision class for servo-driven positioning axes where lost motion matters — think indexing tables or pick-and-place gantries where the load reversal error must stay under a tenth of a degree.
Torque, life, and load ratings under duty cycle
The continuous torque rating of 115 N.m is the figure to size against your application's RMS torque profile — the maximum 184 N.m is for peak acceleration or momentary overloads only. Service life is 30000 hours at 100 rpm and 30 °C, which drops to 10000 hours if you push the axial load from 900 N to 1200 N or the radial load from 650 N to 950 N at the same speed. Efficiency is listed at 94 %, which is typical for a single-stage planetary with oil lubrication — the straight-tooth profile keeps meshing losses low but generates more noise than helical, hence the 60 dB at 1 m no-load figure.
Obsolete — sourcing through independent channels
Schneider Electric lists the GBX0800040701F as obsolete. The part is sourced through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. The black anodized aluminium housing carries an IP54 rating at the shaft output, meaning it's sealed against dust ingress and splashing water — suitable for washdown-adjacent areas but not submersion. The C45 steel shaft handles the axial and radial loads listed above; the gearbox is lubricated for life, so no maintenance schedule for oil changes.