Lifecycle reality — obsolete, sourced through independent channels
Schneider Electric lists the GBX0800041404F as obsolete. This planetary gearbox is available through independent surplus and broker channels.
Torque and duty ratings that govern the fit
Continuous output torque is 115 N.m (1017.8 lbf.in) at 100 rpm and 30 °C — this is the sustained load the gearbox can carry without exceeding its thermal or mechanical limits. Maximum output torque reaches 184 N.m (1628.5 lbf.in) under the same conditions, intended for intermittent peak loads, not steady-state operation. The 4:1 reduction ratio and straight-tooth planetary design deliver 94 % efficiency — the 6 % loss is mostly gear mesh friction and churning losses in the lifetime grease charge. Service life is rated at 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no maintenance regreasing interval, which simplifies installation in sealed or hard-to-access positions.
Mechanical interface and environmental limits
Gearbox external diameter is 80 mm (3.1 in). The housing is black anodized aluminium; the output shaft is C45 steel. Shaft output seal rating is IP54 — splash-proof from the shaft side, but the motor interface and cable entries must be sealed separately for washdown environments. Ambient temperature range for operation is -25 to 90 °C. Maximum torsional backlash is 9 arc.min — this is the angular play under reversing load, relevant for positioning accuracy in indexing or servo-follower applications. Torsional rigidity is 6 N.m/arcmin — the stiffness under load that determines windup in the drive train. Maximum axial force Fa is 1200 N at 100 rpm for 10,000 h, derated to 900 N for the full 30,000 h service life. Maximum radial force Fr is 950 N at 100 rpm for 10,000 h, derated to 650 N for 30,000 h — radial loads must be applied at mid-distance from the output shaft per the rating condition.
Acoustic and operational profile
Noise level is 60 dB at 1 m, no-load — this is the gear mesh and bearing noise under zero output torque. Under load the noise floor rises with torque and speed; the 60 dB figure is a baseline for comparing gearbox families, not a guaranteed in-system maximum. The straight-tooth planetary design is inherently noisier than helical-tooth variants at the same reduction ratio — the 60 dB no-load figure reflects this. If acoustic constraints are tight, a helical planetary or right-angle gearbox may be a quieter alternative, but no direct drop-in replacement exists from Schneider for this frame size.