Planetary gearbox with 40:1 reduction
The GBX1200401002F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 120 mm housing diameter and a 40:1 reduction ratio. It delivers 230 N.m continuous output torque at 100 rpm, with a maximum intermittent torque of 368 N.m at the same speed. Rated service life is 30,000 hours at 100 rpm and 30 °C ambient — the gearbox is lubricated for life and sealed to IP54 at the shaft output, making it suitable for applications where periodic re-greasing is impractical.
Torque, backlash, and load ratings
Continuous torque is 230 N.m; maximum output torque reaches 368 N.m at 100 rpm and 30 °C. Torsional rigidity is 13 N.m/arcmin, and maximum torsional backlash is 12 arc.min — the angular positioning error under reversing loads. Maximum axial force (Fa) is 2100 N for the 30,000-hour service life, or 2800 N for a 10,000-hour duty cycle at 100 rpm and 30 °C. Maximum radial force (Fr) is 1500 N at mid-shaft for 30,000 hours, or 2000 N for 10,000 hours — these limits govern the overhung load capacity on the output shaft. Efficiency is 94 %, and the noise level is 65 dB at 1 m under no-load conditions.
Sourcing an obsolete GBX gearbox
Schneider Electric has marked the GBX1200401002F as obsolete. No direct successor order code is listed on the official record. The housing is black anodized aluminium, the shaft material is C45 steel, and the gearbox is supplied as a single unit. Compliance documentation (RoHS, REACH) should be verified at quote time since the part is no longer in active factory production.