The GBX0800031403F: This planetary gearbox delivers 85 N.m continuous output torque at 100 rpm and 30 °C, with a maximum of 136 N.m at the same speed and temperature. At 3:1 reduction, input speed translates directly: 3000 rpm on the motor side yields 1000 rpm on the output. The 94 % efficiency means about 6 % of the input power is lost as heat inside the housing — negligible for most servo axes, but worth accounting for in a continuous-duty thermal budget.
Lifecycle reality — obsolete, but still specifiable as a critical spare
The housing is black anodized aluminium, 80 mm diameter, with a C45 steel output shaft. Shaft output is IP54 — protected against dust ingress and splashing water, but not submersion. The unit is lubricated for life, so no maintenance schedule for oil changes.
Noise, backlash, and service life — the mechanical envelope
Rated noise is 60 dB at 1 m, no-load — quiet enough for a cabinet-mounted axis in a production hall without acoustic enclosure. Maximum torsional backlash is 9 arc-minutes, which places this in the standard-precision range; for a positioning application requiring less than a few arc-minutes of lost motion, a low-backlash or zero-backlash reducer would be needed. Service life is 30,000 hours at 100 rpm and 30 °C — roughly 3.4 years of continuous operation. The radial and axial load limits at that life point are 650 N (radial, mid-shaft) and 900 N (axial). For shorter life targets (10,000 hours), both limits increase: 950 N radial and 1200 N axial.