Planetary gearbox for precision motion — 700 N.m continuous, 40:1 reduction
The GBX1600400701F is a Schneider Electric planetary gearbox with a 160 mm diameter housing, straight-tooth gearing, and a 40:1 reduction ratio. It delivers a continuous output torque of 700 N.m at 100 rpm and a maximum output torque of 1120 N.m under the same conditions — sized for servo or stepper motor output stages in indexing, positioning, and conveyor drives.
Torque, backlash, and stiffness — the numbers that govern fit
Continuous torque is 700 N.m at 100 rpm and 30 °C; the peak rating of 1120 N.m covers acceleration and emergency-stop transients. Maximum torsional backlash is 10 arc.min — this is the lost motion at the output under reversing loads, and it sets the positioning repeatability floor for the axis. Torsional rigidity of 41 N.m/arcmin tells you how much windup occurs under load; a stiffer gearbox holds position better under variable torque. Rated service life is 30,000 hours at 100 rpm and 30 °C, lubricated for life — no maintenance interval for oil changes. The housing is black anodized aluminium; the output shaft is C45 steel. Ambient operating range is -25 to 90 °C.
Maximum axial force Fa is 6000 N at 100 rpm for the full 30,000-hour life, or 8000 N if you accept a 10,000-hour service window. Maximum radial force Fr at mid-shaft is 4200 N for 30,000 hours, 6000 N for 10,000 hours. These are the limits for overhung loads from belt pulleys or chain sprockets — exceed them and the bearing life drops faster than the derating curve suggests. The output shaft seal is rated IP54, splash-proof but not washdown-rated. Noise level is 70 dB at 1 m, no-load — typical for a straight-tooth planetary of this size. Efficiency is 94 %, meaning 6 % of input power is lost as heat in the gear mesh and bearings; thermal rise stays manageable at continuous rated torque without external cooling.