Planetary gearbox, 15:1 reduction, 18 N.m — what the ratings mean on the line
The GBX0400150702F is a 40 mm-diameter planetary gearbox with straight teeth and a 15:1 reduction ratio. Continuous output torque is 18 N.m at 100 rpm; maximum output torque hits 29 N.m at the same speed, giving you a 1.6× overload margin for transient loads like indexing or reversing. Rated efficiency is 94 % — that's typical for a single-stage planetary at this ratio, meaning about 6 % of input power is lost as heat. The noise level is 55 dB at 1 m, no-load, which is quiet enough for a lab or packaging line without an enclosure.
Backlash and load ratings — fit for positioning
Maximum torsional backlash is 28 arcmin. That's on the higher side for precision indexing, but acceptable for conveyor drives, rotary tables, or positioning where the load holds position after the move. Torsional rigidity is 1.1 N.m/arcmin, so the windup under load is predictable. Maximum axial force (Fa) is 200 N at 100 rpm for a 10,000-hour life at 30 °C, dropping to 160 N for 30,000 hours. Radial force (Fr) follows the same profile — 200 N at mid-span on the output shaft. These limits govern how much overhung load you can hang off the shaft without shortening gear life.
Sourcing and lifecycle reality for GBX0400150702F
This gearbox is marked obsolete by Schneider Electric. The housing is black anodized aluminium with IP54 protection at the shaft output — splash-resistant but not submersible. It's lubricated for life, so no maintenance schedule for oil changes.