15:1 reduction, 18 N.m continuous — what it delivers on a line
The GBX0400150552F is a 40 mm planetary gearbox with straight-cut teeth, turning a 15:1 reduction ratio. At 100 rpm and 30 °C ambient, it delivers 18 N.m continuous output torque — enough for indexing tables, small conveyors, or positioning axes where the load is steady and the cycle time isn't aggressive. Efficiency sits at 94 %, which means about 6 % of the input power goes into gear mesh losses and bearing drag — not bad for a single-stage planetary. The noise level is 55 dB at 1 m under no-load, quiet enough for a packaging line or assembly cell where operators work nearby.
Service life, lubrication, and the 30000-hour mark
Rated service life is 30000 hours at 100 rpm and 30 °C — that's about 3.4 years of continuous running. The gearbox is lubricated for life, so no oil changes or regreasing intervals to schedule; the sealed charge is meant to last the service life. Axial and radial force limits drop with runtime: at 100 rpm, the maximum axial force Fa is 200 N for a 10000-hour design life, falling to 160 N if you want the full 30000 hours. Radial force Fr follows the same pattern — 200 N at mid-shaft for 10000 hours, 160 N for 30000 hours. If your application pushes a belt or chain load onto the output shaft, budget the lower figure for the longer life.
Backlash and torsional rigidity — positioning accuracy
Maximum torsional backlash is 28 arc.min — that's about half a degree of lost motion at the output when the direction reverses. For a pick-and-place or a simple index, that's acceptable; for a servo-driven rotary table with tight registration, you'd want a lower-backlash gearbox. Torsional rigidity is 1.1 N.m/arcmin, meaning the shaft twists about 0.9 arcmin per N.m of load torque. Shaft output is IP54 — protected against dust ingress and splashing water, but not submersion. The housing is black anodized aluminium, the shaft is C45 steel. Ambient operating range is -25 to 90 °C, so it's fine for unheated plant areas or near ovens as long as the output torque is derated above 30 °C.
Obsolete — sourcing reality for the GBX0400150552F
Available through independent surplus and broker channels. Quantities are lot-specific and confirmed at RFQ. If you need a drop-in replacement with the same 40 mm housing, 15:1 ratio, and 18 N.m rating, the best path is to quote the BOM quantity against the remaining stock in the channel — no pin-compatible alternative from Schneider is documented.