Planetary gearbox with straight teeth — 15:1 reduction, 230 N.m continuous
The GBX1200150703F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 120 mm diameter, with a 15:1 reduction ratio. It delivers a continuous output torque of 230 N.m at 100 rpm and a maximum output torque of 368 N.m for peak overload events. Rated service life is 30000 hours at 100 rpm and 30 °C ambient — the bearing and gear life are specified at this duty point. The gearbox is lubricated for life, eliminating periodic oil changes in service.
Torque, stiffness, and backlash — what governs load fit
Continuous torque (230 N.m) is the rating that sizes the gearbox for steady-state operation; the maximum torque (368 N.m) covers acceleration peaks and momentary overloads. Torsional rigidity is 13 N.m/arcmin — a measure of how much the output shaft twists under load, relevant for positioning accuracy in indexing applications. Maximum torsional backlash is 12 arc.min — the angular play between input and output when reversing direction. For a 15:1 ratio this translates to about 0.8 arc.min at the input, typical for a straight-tooth planetary stage without preloading. Efficiency is 94 % — the remaining 6 % is dissipated as heat inside the housing. Noise level at 1 m under no-load is 65 dB, which is moderate for a planetary of this size.
Mechanical limits — shaft loads, temperature, and seal rating
Maximum axial force on the output shaft is 2100 N for a 30000-hour life, or 2800 N for a 10000-hour life at 100 rpm. Maximum radial force (overhung load) is 1500 N at 30000 hours or 2000 N at 10000 hours, measured at the midpoint of the output shaft. Exceeding these reduces bearing life below the stated service hours. Ambient temperature range for operation is -25 to 90 °C. The shaft output seal carries an IP54 rating — protected against dust ingress and splashing water at the seal face, not submersible. The housing is black anodized aluminium; the shaft is C45 steel.
Lifecycle status — obsolete, sourced through independent channels
Schneider Electric has marked the GBX1200150703F as obsolete. No direct replacement or successor part number is published. For a line-down or BOM fill, the unit is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. No stock-holding claim is made; the supply posture is quoted-to-order through distribution channels that carry legacy Schneider gearbox inventory.