The GBX0800320702F is a straight-tooth planetary gearbox in the GBX series, 80 mm diameter, with a 32:1 reduction ratio. The continuous output torque is 120 N.m at 100 rpm and 30 °C — this is the rating that governs the duty cycle, not the peak figure. Maximum output torque reaches 192 N.m under the same conditions, but the 30000-hour service life is pegged to the continuous 120 N.m figure. Pushing above that shortens the L10 life faster than the ratio suggests. Torsional rigidity is 6.5 N.m/arcmin — the gearbox winds up under load, and the 14 arcmin maximum backlash means the output position repeats within that window after reversing direction. For a pick-and-place or indexing axis, that backlash is the positioning uncertainty you budget in the servo loop.
Obsolete — sourcing the GBX0800320702F through independent channels
Schneider Electric lists the GBX0800320702F as obsolete. The gearbox is available through independent surplus and broker channels. Quantities are lot-specific — confirmed at RFQ against the BOM line. No pin-compatible direct replacement exists in the current GBX catalog; a functional substitute would require verifying the mounting flange, shaft diameter, and input interface. Shaft output carries IP54 protection — suitable for dry indoor environments where dust and splash are occasional, not washdown. The housing is black anodized aluminium; the shaft is C45 steel.
Efficiency, noise, and thermal limits for the integration engineer
Rated 94 % efficiency at full load — the 6 % loss shows up as heat in the gearbox housing. At 120 N.m and 100 rpm, the input power is roughly 1.26 kW; the heat rejection is about 75 W. The anodized aluminium housing dissipates that in free air, but in a sealed enclosure or near other heat sources the ambient must stay within -25 to 90 °C. Noise level is 60 dB at 1 m, no-load — straight-tooth planetary gears are inherently noisier than helical, so this figure is the floor; under load the mesh noise rises. The 30000-hour service life assumes lubricated-for-life grease; no re-greasing interval is specified. Maximum axial force Fa is 900 N for the 30000-hour life at 100 rpm, 30 °C — drop to 1200 N if you accept a 10000-hour life. Radial force Fr at mid-span on the output shaft is 650 N for the long-life case, 950 N for the short-life case. These are the bearing limits; overhung loads must be calculated from the actual lever arm.