Sourcing a discontinued planetary gearbox
The GBX0800320701D is listed as obsolete. No official successor is recorded from Schneider Electric. Sourcing this unit goes through independent distribution channels — quantities are confirmed at RFQ against the BOM line. For a motion-control build requiring a 32:1 reduction with 120 N.m continuous torque at 94 % efficiency, this gearbox was a fit. The lifecycle status means procurement must verify availability per lot, not per catalogue.
Torque, backlash, and duty-cycle limits
Continuous output torque is 120 N.m, with a maximum of 192 N.m. The torsional rigidity of 6.5 N.m/arcmin and maximum backlash of 17 arc.min define the positioning repeatability — relevant for indexing or pick-and-place axes where cumulative error matters. Service life is rated 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life, so no field regreasing interval — the seal integrity at the shaft output (IP54) governs the lifetime in dusty or washdown-adjacent environments. Maximum axial force on the output shaft is 1200 N at 100 rpm for a 10,000-hour life, dropping to 900 N for the full 30,000-hour window. Radial force limits follow the same pattern: 950 N (10,000 h) vs 650 N (30,000 h) at mid-shaft. These are the constraints for overhung loads like belt pulleys or chain sprockets.
The 80 mm diameter black anodized aluminium housing accepts any mounting position. Shaft material is C45 steel. Noise level is 60 dB at 1 m, no-load — quiet enough for lab or light assembly lines without an acoustic enclosure. Ambient operating range is -25 to 90 °C. The straight-tooth design is typical for cost-sensitive, moderate-speed planetary stages — helical gears would offer lower noise but are not specified here.