Obsolete — sourcing through independent channels
This GBX0800320704F planetary gearbox is marked Obsolete by Schneider Electric. Available through independent surplus and broker channels against an RFQ. The field in the system also reads 'current', which is inconsistent with the Obsolete flag — verify the specific date of discontinuation before committing the BOM line.
32:1 reduction, 120 N.m continuous — the load-bearing ratings
Planetary gearbox with a 32:1 reduction ratio, 80 mm housing diameter, straight-tooth gearing. The continuous output torque is 120 N.m at 100 rpm and 30 °C ambient — this is the rating that governs steady-state load capacity, not the 192 N.m maximum figure. Maximum torsional backlash is 14 arc.min, which sets the positioning repeatability floor for the driven axis. For applications requiring tighter indexing, a lower-backlash gearbox would be needed. Efficiency is 94 % at rated load, meaning 6 % of input power is lost as heat in the gear mesh — a consideration for duty-cycle and thermal management in the enclosure.
Mechanical limits and service life
Rated service life is 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no field re-greasing interval, which simplifies MRO but means the unit is replaced at end of life rather than serviced. Maximum axial force (Fa) is 1200 N for 10,000-hour life or 900 N for 30,000-hour life at 100 rpm and 30 °C. Maximum radial force (Fr) applied at mid-distance on the output shaft is 950 N for 10,000-hour life or 650 N for 30,000-hour life. These limits govern the overhung load the output bearing can sustain without premature failure. Shaft output protection is IP54 — suitable for dry indoor environments with dust ingress protection but not for washdown or direct spray. Shaft material is C45 carbon steel; housing is black anodized aluminium. Noise level is 60 dB at 1 m under no-load conditions — a baseline for acoustic compliance in noise-sensitive areas.