Planetary gearbox for precision motion — 40 mm frame, 20:1 reduction
The GBX0400201403F is a 40 mm-diameter planetary gearbox from Schneider Electric's GBX series, offering a 20:1 reduction ratio with straight-cut teeth. It delivers a continuous output torque of 20 N.m at 100 rpm, with a maximum intermittent torque of 32 N.m under the same conditions — suitable for servo or stepper motor applications requiring compact speed reduction and moderate torque multiplication. Efficiency is rated at 94 %, which is typical for a single-stage planetary design at this ratio. The maximum torsional backlash is 28 arc.min — a standard figure for commercial planetary gearboxes without preloading; for applications demanding lower lost motion, a preloaded or harmonic-drive stage would be required.
Mechanical ratings and service life
Rated service life is 30,000 hours at 100 rpm and 30 °C ambient, with the gearbox lubricated for life — no periodic oil changes are needed. The housing is black anodized aluminium (40 mm outer diameter), and the output shaft is C45 steel. Shaft output sealing meets IP54, providing protection against dust ingress and splashing water. Maximum axial force (Fa) on the output shaft is 200 N for a 10,000-hour life, derating to 160 N for the full 30,000-hour target. Maximum radial force (Fr) follows the same profile: 200 N at 10,000 hours, 160 N at 30,000 hours, with the force applied at mid-span of the output shaft.
Sourcing and lifecycle — obsolete, sourced to order
Schneider Electric has classified the GBX0400201403F as obsolete. No official successor or cross-reference is recorded in the manufacturer's documentation.