20:1 planetary — 40 mm frame, 32 N.m ceiling
The GBX0400200402D is a 40 mm-diameter planetary gearbox with straight teeth and a 20:1 reduction ratio. Maximum output torque is 32 N.m; continuous output torque is 20 N.m at the rated service life. Efficiency is listed at 94 %, with a noise level of 55 dB at 1 m under no-load conditions — the straight-tooth profile trades some acoustic smoothness for higher torque density in this frame size. Torsional backlash is capped at 35 arc.min maximum, and torsional rigidity is 1.1 N.m/arcmin — this is a general-purpose positioning gearbox, not a zero-backlash stage for precision indexing.
Load ratings and service life at 100 rpm
Rated service life is 30,000 hours at 100 rpm and 30 °C ambient. Maximum axial force on the output shaft is 200 N at 100 rpm for a 10,000-hour life, or 160 N for the full 30,000-hour window. Maximum radial force (applied at mid-distance from the output shaft) follows the same derating: 200 N for 10,000 hours, 160 N for 30,000 hours at 100 rpm and 30 °C. Ambient operating range is -25 to 90 °C. The gearbox is lubricated for life — no maintenance regreasing interval. Shaft-output IP rating is IP54, meaning it's protected against dust ingress and splashing water at the seal.
Obsolete — sourced through surplus channels
Schneider Electric lists the GBX0400200402D as obsolete. No direct pin-compatible successor is recorded in the GBX family documentation. Available through independent surplus and broker channels. The housing is black anodized aluminium; the shaft is C 45 steel. Mounting position is unrestricted — any orientation works within the ambient temperature envelope.