32:1 reduction and the torque envelope that drives sizing
The GBX1600321082D is a planetary gearbox from the Schneider Electric GBX series with a 32:1 reduction ratio and a Ø 160 mm housing, built to mount in any position on the driven shaft of a servo or motion axis. Continuous output torque is 800 N.m with a maximum output torque of 1280 N.m, so the unit is sized for mid-range motion axes where a brief overload capability is required without oversizing the gearbox frame.
Efficiency, noise, and the precision envelope
Efficiency is 94%, which keeps the heat rejection budget modest in a sealed cabinet — at 800 N.m continuous output the loss term stays small enough that no external forced cooling is implied at the rated load. Noise level is 70 dB at 1 m under no-load — a usable planning figure for acoustic zoning of a machine room where the gearbox sits next to operator stations. Precision metrics are anchored at 41 N.m/arcmin torsional rigidity, 6.36 g.cm² moment of inertia, and a maximum torsional backlash of 10 arc.min, so the unit sits in the mid-precision band rather than the high-precision servo class.
Service life, shaft loading, and operating envelope
Service life is rated 30000 hours at 100 rpm and 30 °C, with the unit lubricated for life — no planned re-lube interval — so the duty assumption needs to fit that thermal-and-speed envelope to realise the rated lifetime. Maximum radial force Fr is 4200 N at 100 rpm over the 30000-hour life (6000 N over 10000 hours), and maximum axial force Fa is 6000 N over the 30000-hour life (8000 N over 10000 hours), with both values measured at mid-distance from the output shaft — these are the figures a belt, pinion, or coupling designer sizes against, not the headline torque alone. Operating temperature is -25 to 90 °C and the shaft output carries an IP54 protection rating — sufficient for indoor industrial cabinets and gantry-style installations, though it does not extend to washdown or outdoor exposure.
Sourcing posture for a project spares package
For a capex line build, the gearbox fits a quoted-to-order posture against the BOM quantity: the housing, shaft material (C 45), and black anodized aluminium body are spec-defined enough that a procurement spec sheet can be issued without further clarification, and commissioning spares are pulled from the same production batch to keep the lubrication and backlash envelope consistent across the install.