Planetary gearbox with 32:1 reduction and 120 N.m continuous rating
The GBX0800321401F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with a 32:1 reduction ratio and 80 mm housing diameter. Continuous output torque is 120 N.m at 100 rpm, with a maximum intermittent torque of 192 N.m at the same speed. Rated service life is 30000 hours at 100 rpm and 30 °C, and the unit is lubricated for life — no maintenance oil changes needed over that window.
Efficiency, noise, and thermal limits for integration
Listed efficiency is 94 %, which means about 6 % of input power is lost as heat inside the gearbox. Noise level is 60 dB at 1 m under no-load conditions. For comparison, that is roughly the level of a quiet office — relevant if the gearbox is mounted near operator stations in a conveyor or packaging line. Maximum torsional backlash is 14 arc.min. In a positioning application, this means the output shaft can lag the input by up to 14 arc-minutes before the gear teeth engage — acceptable for general motion but not for precision indexing without a separate encoder.
Shaft loading and sealing for motor mounting
The output shaft is C45 steel. Maximum radial force at mid-span is 650 N for the 30000-hour service life, or 950 N for a 10000-hour life. Maximum axial force is 900 N for 30000 hours, or 1200 N for 10000 hours — both at 100 rpm and 30 °C. Shaft output sealing is rated IP54, meaning protection against dust ingress and splashing water. The gearbox is not rated for washdown or submersion — keep it out of direct hose spray. Torsional rigidity is 6.5 N.m/arcmin. This figure tells you how much the gearbox twists under load — at 120 N.m continuous, expect about 18.5 arc-minutes of windup before the output moves.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX0800321401F as obsolete. No official successor part number is listed on the manufacturer's records. Available through independent surplus and broker channels. Quantities are lot-specific and confirmed at RFQ — no stock-holding claim is made here. A functional replacement from the same GBX family would require a different order code and possibly a different reduction ratio or frame size.