Planetary gearbox for precision motion — 40 mm frame, 9:1 reduction
The GBX0400090704F is a 40 mm-diameter planetary gearbox with straight-cut teeth and a 9:1 reduction ratio, delivering a maximum output torque of 26 N.m at 100 rpm and 30 °C ambient. Rated efficiency is 94 %, with torsional rigidity of 1.1 N.m/arcmin and a maximum backlash of 28 arc.min — figures that matter when the gearbox sits between a servo motor and a positioning stage where lost motion translates directly into repeatability error.
The output shaft carries a maximum radial force of 200 N (mid-shaft, 100 rpm, 10,000-hour life) and a maximum axial force of 200 N under the same conditions; both derate to 160 N for the 30,000-hour service life target. Operating temperature spans -25 to 90 °C, and the unit is lubricated for life — no maintenance re-greasing interval to schedule. Shaft output sealing is IP54, adequate for indoor machinery enclosures where splash or dust ingress is limited but not for washdown environments.
Obsolete — sourcing through independent channels
Schneider Electric lists the GBX0400090704F as obsolete — no longer in active factory production. Available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. The housing is black anodized aluminium, the shaft is C45 steel — material specs that match the original BOM for a like-for-like replacement in an existing machine.