Planetary gearbox, 40:1, 230 N.m — obsolete, sourced to order
The GBX1200401404F is a Schneider Electric planetary gearbox with a 40:1 reduction ratio and 230 N.m continuous output torque at 100 rpm and 30 °C. It is now classified as obsolete.
Torque, backlash, and service life at 100 rpm
Continuous output 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. Maximum torsional backlash is 12 arc.min — this is the angular play between input and output, relevant for positioning accuracy in indexing or pick-and-place applications. Rated service life is 30,000 hours at 100 rpm and 30 °C; the gearbox is lubricated for life, so no field re-greasing is needed.
Efficiency, noise, and mechanical limits
Efficiency is listed at 94 % — typical for a single-stage planetary with straight teeth; the remaining 6 % is lost as heat in the gear mesh and bearings. Noise level is 65 dB at 1 m under no-load — this is moderate for a 120 mm planetary; expect a few dB higher under full torque. Maximum axial force (Fa) is 2100 N for the 30,000-hour life, or 2800 N for a 10,000-hour duty; maximum radial force (Fr) is 1500 N and 2000 N respectively, applied at mid-distance on the output shaft.
Housing, shaft, and environmental ratings
The housing is black anodized aluminium, 120 mm external diameter; the output shaft is C45 steel. Shaft output IP54 — the gearbox is protected against dust ingress and splashing water at the output seal, but not rated for washdown or submersion.