40:1 planetary, 120 mm frame
The GBX1200400554F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 40:1 reduction ratio and a 120 mm outer diameter housing in black anodized aluminium. Rated for 230 N.m continuous output torque at 100 rpm and 30 °C, with a maximum intermittent torque of 368 N.m at the same speed and temperature.
Torque, backlash, and service life
Continuous torque is 230 N.m (2035.7 lbf.in) at 100 rpm and 30 °C; maximum output torque reaches 368 N.m (3257.07 lbf.in) under the same conditions — the margin above continuous is about 60% for short-duration peaks. Maximum torsional backlash is 12 arc.min, and torsional rigidity is 13 N.m/arcmin — the stiffness figure tells you how much wind-up you get under load, which matters for positioning accuracy in indexing or servo-follower applications. Rated service life is 30,000 hours at 100 rpm and 30 °C, and the gearbox is lubricated for life — no maintenance oil changes, which simplifies installation in sealed or hard-to-access locations.
Shaft loads and IP protection
Maximum axial force (Fa) on the output shaft is 2100 N for the 30,000-hour life rating, or 2800 N for a 10,000-hour duty cycle at 100 rpm and 30 °C. Maximum radial force (Fr) applied at mid-distance from the output shaft is 1500 N for 30,000 hours, or 2000 N for 10,000 hours at the same speed and temperature. Shaft output is rated IP54 — suitable for indoor industrial environments with dust and splash exposure, but not for washdown or submersion.
Lifecycle and sourcing
Available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ.