Torque and duty ratings that matter
The GBX1600121401F: The continuous output torque is 800 N.m (7080.6 lbf.in) at 100 rpm and 30 °C ambient — that is the rating you size the driven load against for sustained operation. Maximum output torque hits 1280 N.m (11328.9 lbf.in) under the same conditions, which covers peak loads during acceleration or momentary overloads. Service life is specified at 30,000 hours at 100 rpm and 30 °C — the lubricated-for-life design means no periodic oil changes, but the life rating assumes the load stays within the continuous torque envelope. Exceeding that shortens the bearing and gear life proportionally.
Load capacity and integration limits
Maximum radial force Fr is 4200 N at 100 rpm applied mid-shaft for the full 30,000-hour life, or 6000 N for a 10,000-hour duty cycle. Axial force Fa limits are 6000 N (30,000 h) and 8000 N (10,000 h). These are the constraints for overhung loads like belt pulleys or chain sprockets — stay within them to avoid premature bearing failure. Shaft output IP54 means the output seal is protected against dust ingress and splashing water — suitable for most indoor industrial environments but not washdown or outdoor exposure. The housing is black anodized aluminium, which gives good corrosion resistance in dry indoor air.
Backlash and precision fit
Maximum torsional backlash is 10 arc.min — a standard-precision planetary for general motion control, not a zero-backlash servo gearhead. If your application needs tighter positioning repeatability (indexing tables, rotary axes), this gearbox adds about 10 arc-min of lost motion that the controller must account for. Torsional rigidity is 41 N.m/arcmin — that is the stiffness of the gear train under load. For a 800 N.m continuous torque, the wind-up under full load is roughly 19.5 arc-min (800 / 41), which combines with the backlash to give the total positioning uncertainty.