The Schneider Electric GBX1600151082D is a planetary gearbox — straight-tooth planetary gearing in a 160 mm external-diameter housing — intended to mount downstream of a servo or stepper drive where the motor speed needs dropping 15:1 and the output shaft needs to absorb up to 700 N.m continuous. The GBX short-name is the family handle Schneider uses for its planetary reducer line, and the GBX1600151082D order code locks the reduction to 15:1 with the standard backlash grade of < 10 arc.min.
Torque envelope and the duty it actually carries
Continuous output torque is 700 N.m and the maximum output torque peaks at 1120 N.m, which sets the hard ceiling on peak shock load before the gear teeth are at risk — sizing means keeping the application's worst-case acceleration torque under that 1120 N.m figure, with the running load usually parked well below it. Service life is stated as 30000 h at 100 rpm at 30 °C, which is the reference duty for the radial and axial load curves that follow; running hotter or faster derates the L10 figure the same way the load curves do.
Radial and axial load on the output shaft
The output shaft carries a maximum radial force Fr of 4200 N at 100 rpm over the full 30000 hour life, rising to 6000 N if the duty is capped at 10000 hours, and a maximum axial force Fa of 6000 N on the same 10000-hour envelope / 8000 N ceiling. The C 45 steel output shaft is the part that absorbs those loads — the values apply to a force applied at mid-distance from the output shaft, so a pulley mounted closer to the housing face sees a lower effective load and one mounted further out sees more.
Precision, rigidity and the inertia it adds to the loop
Torsional backlash is held under 10 arc.min — adequate for general servo positioning but not a high-precision grade — and torsional rigidity is 41 N.m/arcmin, so the twist under peak torque is small enough that most position-loop tuning can ignore it. Moment of inertia is 12.35 g.cm² referred to the input, which is the number the drive's auto-tuner uses when it calculates the gain product; add it to the motor's own inertia and use the total for the inertia-ratio calculation rather than treating the gearbox as transparent.
Environment, sealing and where it can be mounted
Ambient operating range is -25...90 °C with the shaft output sealed to IP54, which keeps dust and water splash out of the seal area but does not make the gearbox a washdown unit — food-and-bev line or outdoor mounting would need a higher-rated cover. Housing is black anodized aluminium, factory-lubricated for life so there is no service port to schedule, and the unit is rated for any mounting position, which simplifies bracket design when the gearbox has to hang off the side of a machine frame rather than sit on a flat foot.
Production status and the supply posture
Independent distribution quotes it to order against the BOM line; lead time and volume price confirmed at RFQ through our desk, with no stock-count or shipment promise made on this page.