The GBX1600150552F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for servo or stepper motor output stages that need a 15:1 reduction in a 160 mm diameter envelope. Maximum output torque is 1120 Nm at 100 rpm, but the continuous rating is 700 Nm at the same speed — the difference is the thermal limit of the lubricated-for-life charge, not the gear mesh. Torsional rigidity of 41 N·m/arcmin and a maximum backlash of 10 arcmin place this in the precision class for positioning axes, not the high-backlash economy tier.
Load capacity and service life at rated speed
Rated service life is 30000 hours at 100 rpm and 30 °C ambient — the axial force limit is 6000 N and the radial force limit is 4200 N over that lifetime, both measured at mid-span on the output shaft. For shorter duty cycles, the gearbox can handle 8000 N axial and 6000 N radial for 10000 hours at the same speed and temperature. The shaft output seal is rated IP54, so the gearbox tolerates dust and splash but not washdown — the black anodized aluminium housing and C45 steel shaft are standard for dry indoor machine builds.
Efficiency and noise — the operating envelope
Listed efficiency is 94 %, which is typical for a single-stage planetary with straight teeth at the rated load point — expect slightly lower efficiency at partial load or higher speed. Noise level is 70 dB at 1 m under no-load conditions; under load the straight-tooth mesh will be louder than a helical equivalent, so factor this into the machine acoustic spec. Operating ambient range is -25 to 90 °C, which covers most indoor industrial environments but not freezer or high-temp oven zones.
Obsolete — what that means for sourcing
This gearbox is available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. No pin-compatible direct replacement is documented, so a BOM review is needed if the original is no longer stocked.