Planetary gearbox, 80 mm frame, 100:1 reduction
The GBX0801001403F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with an 80 mm outer diameter and a 100:1 reduction ratio. It delivers a continuous output torque of 120 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 192 N.m under the same conditions.
Torque, efficiency, and service life at rated speed
Rated at 94 % efficiency, the gearbox loses about 6 % of input power to friction and windage — that's typical for a single-stage planetary with straight teeth. Continuous output torque is 120 N.m; the maximum allowable torque hits 192 N.m, but that's a short-duration peak, not a steady-state figure. Service life is specified as 30,000 hours at 100 rpm and 30 °C — that's about 3.4 years of continuous run time before the lubricant degrades or the gear teeth show wear. The gearbox is lubricated for life, so no oil changes are planned. Maximum axial force on the output shaft is 1200 N for a 10,000-hour life, dropping to 900 N if you want the full 30,000-hour service interval. Radial force limits are 950 N (10,000 h) or 650 N (30,000 h), measured at the midpoint of the output shaft.
Backlash, noise, and environmental limits
Torsional backlash is 16 arc.min — that's the angular play between input and output when reversing direction. For positioning applications that need repeatability under 0.5°, this gearbox is a budget pick; a low-backlash planetary would cut that to 5 arc.min or less. Noise level is 60 dB at 1 m, no-load — about the hum of a quiet office printer. The housing is black anodized aluminium, the shaft is C45 steel, and the shaft output seal is rated IP54, so it's splash-proof but not washdown-rated.
Obsolete — sourced through independent channels
Schneider Electric lists the GBX0801001403F as obsolete. The gearbox is available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ.