Planetary gearbox, 40 mm frame, 3:1 reduction — now obsolete
The GBX0400030402D is a 40 mm-diameter planetary gearbox with straight teeth and a 3:1 reduction ratio, delivering 96 % efficiency in a compact black anodized aluminium housing.
Load ratings and mechanical limits for the 3:1 ratio
Maximum axial force Fa is 200 N at 100 rpm for a 10,000-hour service life at 30 °C, derated to 160 N for the 30,000-hour target at the same speed and temperature. Maximum radial force Fr follows the same profile: 200 N at 100 rpm for 10,000 hours, 160 N for 30,000 hours, with the force applied at mid-distance from the output shaft. Torsional rigidity is 1 N·m/arcmin, and maximum torsional backlash is 30 arcmin — this is a commercial-grade positioning gearbox, not a zero-backlash precision stage. Rated service life is 30,000 hours at 100 rpm at 30 °C, lubricated for life with no maintenance interval for grease changes.
Sourcing reality for an obsolete Schneider GBX gearbox
With the GBX0400030402D marked obsolete by Schneider Electric, this part is sourced through independent distribution channels — quantities are confirmed at RFQ and are lot-specific. The gearbox operates in any mounting position over a -25 to 90 °C ambient range, with a C 45 steel shaft and black anodized aluminium housing.