The GBX0400051401F is a 40 mm-diameter planetary gearbox with straight-cut teeth and a 5:1 reduction ratio. It delivers 14 Nm continuous output torque at 100 rpm and 30 °C, with a peak allowable of 22 Nm at the same speed and temperature. Rated efficiency sits at 94 %, which means about 6 % of the input power is lost as heat inside the gearbox — typical for a single-stage planetary at this ratio. The noise level is 55 dB at 1 m under no-load, quiet enough for lab or light-assembly environments. Service life is specified at 30,000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no maintenance oil changes needed in that window. The housing is black anodized aluminium, shaft material is C45 steel.
Load limits and backlash — sizing the gearbox into a servo or stepper axis
Maximum torsional backlash is 24 arc-minutes, which is standard for a commercial planetary at this price point — not suitable for a zero-backlash positioning stage, but fine for indexing, conveyor drives, or pick-and-place where the load reverses infrequently. Torsional rigidity is 1 N·m/arcmin, meaning a 10 N·m load twists the output shaft about 10 arc-minutes before the gear teeth take up the slack. The axial force limit is 200 N at 100 rpm for 10,000 hours, dropping to 160 N for the full 30,000-hour service life. Radial force limits follow the same derating curve — 200 N at mid-shaft for 10,000 hours, 160 N for 30,000 hours. Ambient operating range is -25 to 90 °C.
Obsolete status — sourcing reality for the GBX0400051401F
Schneider Electric lists this gearbox as obsolete. No official successor or cross-reference part number is published for this specific frame size and ratio combination. Available through independent surplus and broker channels. Quantities are lot-specific — confirmed at RFQ against the BOM line. No pin-compatible drop-in replacement exists from Schneider; a mechanical re-design of the mounting interface is needed if moving to a current-series planetary. For a line-down situation, the 40 mm frame diameter and 5:1 ratio are the critical fit dimensions — verify the input bore, keyway, and output shaft configuration against the mating motor and load before committing to a replacement.