Obsolete — sourcing reality for this 8:1 planetary
The GBX1200080704F is marked obsolete by Schneider Electric. That means no factory orders, no scheduled production runs. Available through independent surplus and broker channels — quantities are lot-specific, confirmed at RFQ. If you need a drop-in replacement, the path is a board-spin or a mechanical rework — the GBX series is closed.
Torque and duty cycle — what the ratings deliver
Continuous output torque is 120 N.m at 100 rpm, 30 °C — that's the number to size against your steady-state load. Maximum output torque hits 192 N.m at the same speed and temperature, which covers transient peaks like acceleration or momentary overloads. Service life is rated 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no oil changes, no maintenance schedule on the lube side. Straight-cut teeth mean slightly higher noise than helical, but zero axial thrust generation in the gear mesh itself.
Shaft loading and enclosure limits
Maximum radial force Fr is 1500 N at 100 rpm for the full 30,000-hour life, applied at mid-distance from the output shaft. Bump that to 2000 N if you accept a 10,000-hour service window. Maximum axial force Fa is 2100 N for 30,000 hours, 2800 N for 10,000 hours — both at 100 rpm, 30 °C. Shaft output IP54 means the output seal handles dust and splashing water — fine for most industrial enclosures, but not washdown. The black anodized aluminium housing is corrosion-resistant in dry indoor environments.
Efficiency and noise — what 94 % and 65 dB mean on the line
94 % efficiency at rated load means 6 % of input power becomes heat inside the housing. For a 120 N.m continuous output at 100 rpm (roughly 1.26 kW mechanical), expect about 80 W of thermal dissipation — the aluminium body sinks that without forced cooling in most panel layouts. Noise level is 65 dB at 1 m, no-load — that's the gear mesh whine from straight teeth, measured without a load absorbing vibration. Under load the noise profile changes, but this figure gives you a baseline for enclosure soundproofing if the gearbox sits near operator stations.