The GBX1600250704F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for a 160 mm output-stage diameter and a 25:1 reduction ratio. The 10 arc-min maximum torsional backlash places it in the precision class for indexing tables, pick-and-place axes, and servo-driven rotary applications where lost motion under load reversal must stay under a tenth of a degree. Continuous output torque is 700 N.m at 100 rpm and 30 °C, with a peak maximum of 1120 N.m at the same speed and temperature. The 30000-hour service life at these conditions gives a maintenance planner a replacement interval for the lubricated-for-life gearbox — no oil changes, but the unit is a sealed assembly that gets swapped as a whole when the life limit is reached. Efficiency is listed at 94 %, which is typical for a single-stage planetary at this ratio. The 70 dB noise level at 1 m, no-load is a floor — expect a few dB higher under full torque. The IP54 rating on the shaft output means the gearbox is splash-resistant but not washdown-rated; it belongs in a cabinet or under a machine cover, not in a direct spray zone.
Obsolete — sourcing through independent distribution
Schneider Electric lists the GBX1600250704F as obsolete. The unit is available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ. For a machine-tool rebuild or a line-down replacement, the 160 mm frame size and 25:1 ratio are the binding constraints — any functional substitute must match the output bore, mounting pattern, and input interface, not just the torque and ratio. The axial and radial force limits at the output shaft are specified at 100 rpm and 30 °C: maximum axial force Fa is 6000 N for the 30000-hour life, or 8000 N for a 10000-hour life; maximum radial force Fr at mid-shaft is 4200 N for 30000 hours, or 6000 N for 10000 hours. These are the numbers an applications engineer checks against the overhung load from a belt drive or pinion.