Still on the line, or already gone?
GBX1600091382D is a current-production planetary gearbox from Schneider Electric's GBX family — its lifecycle stage reads as "current," so the part is still being released through the regular channel rather than carried on the surplus market. For a maintenance planner that means it can be quoted against an RFQ without the last-time-buy caveats that come with NRND or EOL gear. It is a planetary gearbox with straight teeth, reduction ratio 9:1, and a 160 mm OD housing (cites:) (cites:) (cites:). Planetary geometry on a reducer this size is typically paired with a servo or motion axis where you want high torsional rigidity and low backlash from a compact foot print — the panel-builder will see it on the output side of a servo drive, not on a basic conveyor head shaft.
What the ratings actually buy you
Efficiency is 94 %, which for a single-stage planetary in this reduction range is in line with the contact-plus-housing losses you'd expect — it isn't a worm gear, so the heat load on the driven machine stays modest and the housing doesn't double as a finned heatsink (cites:). Noise level is 70 dB at 1 m, no-load (cites:), measured on the unloaded bench, so under load and on a real machine plinth the radiated figure will drift — read it as a comparison point, not a guaranteed SPL on your floor. Torsional rigidity is 41 N·m/arcmin and maximum torsional backlash is 10 arc.min (cites:) (cites:). That backlash figure is the one that decides fit on a positioning axis — sub-10 arc.min is on the edge of what you want for a pick-and-place or indexing servo without a backlash-elimination coupling, and it rules out anything that needs true zero-backlash gearing like a high-end CNC spindle. Service life is listed at 30,000 h at 100 rpm and 30 °C (cites:). Because the unit is lubricated for life (cites:), that figure is the operating horizon — there is no grease port to refresh, so the maintenance planner treats 30,000 h as a replacement trigger rather than a service interval. Maximum axial load Fa is 6,000 N at 100 rpm over the 30,000 h life, rising to 8,000 N if you accept the shorter 10,000 h horizon (cites:). Maximum radial load Fr is 4,200 N over 30,000 h or 6,000 N over 10,000 h, applied at mid-distance from the output shaft (cites:). Both numbers are load limits, not continuous ratings, so the application has to stay under them at the worst-case combination of speed, force, and hours.
Mounting, environment, and the shaft side
IP54 is rated at the shaft output only (cites:); that is the wet-end sealing you actually need — water spray and dust ingress at the seal where the input or output shaft leaves the housing. Ambient operating range is −25…90 °C (cites:), so outdoor cabinets in cold-climate conveyor yards or near a furnace door are still inside envelope, but anything above 90 °C ambient derates the life figures above. The compatibility code is GBX (cites:), tying it back to the GBX family for mating servo adapters and pinion options.
Sourcing reality
GBX1600091382D sits in the active gear reducer line, so it is specified into the BOM and quoted to order rather than pulled off the shelf as a stocked commodity. The procurement buyer's question of whether this part is still sourceable resolves to yes, with the usual lead-time conversation that comes with a built-to-order reducer.