15:1 planetary drive — what the ratings mean on a line
The GBX0400151003F is a straight-tooth planetary gearbox, 40 mm diameter, with a 15:1 reduction ratio. That ratio is fixed — no field-swappable stages — so the output speed is locked to the motor input once it's coupled. Continuous output torque is 18 N.m at 100 rpm; maximum torque peaks at 29 N.m. The 94 % efficiency means only 6 % of the input power is lost as heat through the gear mesh — important for duty-cycle applications where thermal buildup in a compact aluminium housing matters. Maximum torsional backlash is 28 arc.min — that's the angular play between input and output when reversing direction. For positioning or indexing, that slop needs to be accounted for in the servo tune or the mechanical stop budget. Rated service life is 30,000 hours at 100 rpm and 30 °C ambient, lubricated for life — no re-grease intervals, but the oil fill is sealed at the factory. The IP54 shaft output rating means it's splash-resistant from the output end but not washdown-rated; keep it out of direct spray.
Sourcing an obsolete planetary gearbox
For a line-down situation or a BOM fill, this part is sourced through independent distribution channels.