Obsolete — sourced from decommissioned lines
Schneider Electric lists the GBX1200090701F as Obsolete. This unit is sourced through independent surplus channels — typically pulled from decommissioned production lines where it ran its service life. The gearbox carries a rated service life of 30,000 hours at 100 rpm and 30 °C. A unit pulled from a running line with documented hours gives a buyer a real read on remaining life — something a new-in-box part from a distributor can't offer.
Torque ratings and what they mean for fit
Maximum output torque is 336 N·m (2973.8 lbf·in) at 100 rpm and 30 °C. Continuous output torque is 210 N·m (1858.7 lbf·in) under the same conditions. Reduction ratio is 9:1, which means the input speed is reduced by a factor of nine while torque is multiplied by roughly the same factor, minus the 94 % efficiency loss. That efficiency is decent for a straight-tooth planetary — helical gears would be quieter but cost more and add axial load.
Mechanical limits — forces, backlash, and environment
Maximum axial force Fa is 2100 N at 100 rpm for the 30,000-hour life target, or 2800 N if you accept a shorter 10,000-hour life. Maximum radial force Fr is 1500 N at 100 rpm for 30,000 hours, 2000 N for 10,000 hours, with the force applied at mid-distance from the output shaft. These are the limits that keep the bearings and shaft from premature failure — exceeding them means the service-life clock runs faster. Torsional rigidity is 13 N·m/arcmin, and maximum torsional backlash is 12 arc.min. For positioning applications, the backlash figure tells you the lost motion between input and output when reversing direction — 12 arc.min is typical for a standard-precision planetary and acceptable for many conveyor and indexing drives, but not for a CNC axis. Shaft output IP54 means it's protected against dust ingress and splashing water — fine for a dry indoor environment but not washdown. The gearbox is lubricated for life — no maintenance oil changes, which simplifies installation but means the lubricant condition is fixed at the factory.
Noise and physical footprint
Noise level is 65 dB at 1 m, no-load. That's audible but not loud — comparable to a small pump running in the same room. The gearbox external diameter is 120 mm (4.7 in), so it fits in a compact envelope for a 210 N·m continuous rating.