25:1 planetary reduction, 230 N.m continuous
The GBX1200251403F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 25:1 reduction ratio and 12 arc-min maximum torsional backlash. Continuous output torque is 230 N.m at 100 rpm, with a maximum of 368 N.m under the same conditions. Rated efficiency sits at 94 %, and the gearbox is lubricated for life — no scheduled oil changes in the field. Service life is 30,000 hours at 100 rpm and 30 °C ambient, which covers most continuous-duty conveyor and indexing applications.
Load ratings and environmental limits
Maximum axial force Fa is 2100 N at 100 rpm for the full 30,000-hour life, or 2800 N if the application only needs 10,000 hours. Maximum radial force Fr is 1500 N at mid-span on the output shaft for 30,000 hours, rising to 2000 N for the shorter duty. Noise level is 65 dB at 1 m under no-load — typical for a straight-tooth planetary at this size. If the application is noise-sensitive, a helical or spiral-bevel gearbox would be quieter, but that's a different product family.
Obsolete — sourced through surplus channels
Schneider Electric lists the GBX1200251403F as obsolete. Stock is available through independent surplus and broker channels. Quantities are lot-specific — confirmed at RFQ against your BOM line. No pin-compatible direct replacement exists from Schneider; a parametric match would need to match the 120 mm housing, 25:1 ratio, and 230 N.m continuous torque.