Planetary gearbox, 12:1 reduction, 800 N.m continuous — obsolete but spec'd
The GBX1600120554F is a Schneider Electric planetary gearbox with straight teeth, 160 mm outer diameter, and a 12:1 reduction ratio. It delivers 800 N.m continuous output torque at 100 rpm and 30 °C, with a maximum of 1280 N.m under the same conditions. Efficiency is listed at 94 %, and the gearbox is lubricated for life — no scheduled oil changes over its 30,000-hour service life at rated load. This unit is now classified as obsolete by Schneider Electric.
Torque, backlash, and rigidity — the mechanical envelope
Continuous torque of 800 N.m at 100 rpm sets the thermal duty limit; the maximum 1280 N.m figure applies for intermittent peaks, not sustained operation. Torsional rigidity is 41 N.m/arcmin — this stiffness determines how much angular deflection the output shaft sees under load, directly affecting positioning accuracy in servo or indexing applications. Maximum torsional backlash is 10 arcmin. That is the lost motion between input and output when reversing direction — critical for pick-and-place or any bidirectional positioning where repeatability matters. Axial force capacity is 6000 N for the full 30,000-hour life, or 8000 N if you accept a shorter 10,000-hour service window. Radial force at mid-shaft is 4200 N for 30,000 hours, 6000 N for 10,000 hours. Both figures are at 100 rpm and 30 °C — derate for higher speeds or temperatures.
Environmental limits and shaft output sealing
The shaft output carries an IP54 rating — dust-protected and splash-resistant at the rotating seal. The housing itself is black anodized aluminium; the shaft is C45 steel. Operating ambient range is -25 to 90 °C. Noise level is 70 dB at 1 m under no-load conditions. In a cabinet or near operator stations, this is within typical industrial background levels but should be factored into any acoustic specification.