Obsolete GBX frame — confirm quantity before quoting
The Schneider Electric GBX1600091084D is a planetary gearbox with straight teeth in the 160 mm frame, carrying a 9:1 reduction ratio.
Sizing the 9:1 reduction against the load envelope
The 9:1 ratio is the figure that drives the gearbox choice on this frame — multiply the input speed at the gearbox by 9 to set the output speed, then check the published load envelope before specifying. Continuous radial load is rated 4200 N at 100 rpm with force applied at mid-distance from the output shaft over the 30000 hour design life at 30 °C, rising to 6000 N if the design life is derated to 10000 hours at 30 °C. Continuous axial load Fa is rated 6000 N over 30000 hours at 30 °C, or 8000 N over 10000 hours at 30 °C. Service life is published at 30000 hours at 100 rpm at 30 °C, with the unit lubricated for life — no scheduled oil change on this frame. Operating temperature spans -25 °C to 90 °C, so the gearbox tolerates unheated cabinets and most outdoor-enclosure layouts.
Motion-control fit: backlash, rigidity, efficiency, noise
Maximum torsional backlash is 10 arcmin and torsional rigidity is 41 N·m/arcmin — that combination puts the GBX1600091084D in the conventional servo-geared range where positioning repeatability matters more than absolute accuracy. Mechanical efficiency is 94 %, so roughly 6 % of the input power dissipates as heat inside the gearbox housing. Acoustic output is 70 dB at 1 m under no-load conditions — a useful figure for cabinet layout where gearboxes are mounted near operator stations or noise-sensitive packaging cells; the loaded condition will read higher and should be measured on the running machine, not pulled from the no-load spec.
Mounting, shaft, and sealing on the 160 mm frame
The GBX1600091084D is rated for any mounting position, so the reducer can be oriented to suit the drivetrain layout without re-validating the lubrication. The output shaft is C 45 carbon steel in a black anodized aluminium housing, with the shaft output sealed to IP54. IP54 covers the shaft only — the housing itself is not listed as sealed, so for washdown or food-grade duty an enclosure or shroud over the gearbox is still required.