Planetary gearbox, 40 mm, 12:1 — torque and backlash constraints
The GBX0400120701F is a 40 mm-diameter planetary gearbox from Schneider Electric's GBX series, offering a 12:1 reduction ratio with straight-cut teeth. Continuous output torque is 20 N.m at 100 rpm (177.01 lbf.in), with a maximum intermittent torque of 32 N.m (283.2 lbf.in) at the same speed and 30 °C ambient. Torsional backlash is rated at 28 arc.min maximum — this is a standard-precision gearbox, not suited for applications requiring zero-backlash positioning. The 94% efficiency figure means about 6% of input power is lost as heat within the gear train, which is typical for a single-stage planetary of this size.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX0400120701F as obsolete. No official successor or cross-reference is listed by the manufacturer. Availability is limited to surplus and broker stock; quantities are confirmed at RFQ and are lot-specific.
IP54 shaft seal and anodized housing — integration notes
The housing is black anodized aluminium, and the shaft output carries an IP54 rating — this means the gearbox is protected against dust ingress and splashing water at the output seal, but is not submersible or rated for washdown environments. The shaft material is C45 carbon steel. Maximum axial force on the output shaft is 200 N for a 10,000-hour life at 30 °C and 100 rpm, derating to 160 N for 30,000-hour life. Radial force follows the same derating curve, applied at mid-shaft. These limits govern the overhung load capacity when coupling to a belt drive or gear rack.