Planetary gearbox, 80 mm, 3:1 — 85 N.m continuous
The GBX0800031401F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with an 80 mm housing diameter and a 3:1 reduction ratio. It delivers 85 N.m continuous output torque at 100 rpm and 30 °C, with a maximum intermittent torque of 136 N.m under the same conditions. Efficiency is rated at 94 %, and the gearbox is lubricated for life, so it runs sealed with no maintenance interval for oil changes. The shaft output carries an IP54 ingress rating — suitable for indoor environments with dust and splash exposure, but not for washdown or submersion.
Torque, life, and load limits — what the ratings mean
Continuous torque of 85 N.m is the figure to size against for steady-state duty; the maximum 136 N.m covers acceleration peaks or occasional overloads. Service life is 30,000 hours at 100 rpm and 30 °C — if your application runs at higher speed or temperature, derate the life accordingly. Maximum axial force on the output shaft is 1200 N for a 10,000-hour life, dropping to 900 N for the full 30,000-hour target. Radial force at mid-shaft is 950 N (10,000 h) or 650 N (30,000 h). These limits govern bearing selection in the driven load — overshoot them and the gearbox life shortens faster than the torque derating suggests. Torsional rigidity is 6 N.m/arcmin, and maximum backlash is 9 arcmin. For positioning accuracy, the 9 arcmin figure is the slop at the output under no load — if your servo loop expects better than 0.15° repeatability, this gearbox may need a preloaded or low-backlash variant.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX0800031401F as obsolete. The part is available through independent surplus and broker channels — quantities are lot-specific, and availability is confirmed at the time of RFQ. No pin-compatible drop-in replacement is documented by Schneider, so any substitution would require re-evaluating the mounting interface, shaft dimensions, and torque ratings against the application.