100:1 planetary gearbox — 260 N.m continuous, 94 % efficient
The GBX1201000553F is a 120 mm-diameter planetary gearbox with a 100:1 reduction ratio, straight-cut teeth, and a continuous output torque of 260 N.m at 100 rpm (30 °C). Peak torque capability reaches 416 N.m under the same conditions, and the unit delivers 94 % efficiency — a figure that holds across the rated speed range when the gearbox is sized to the load. Maximum torsional backlash is 14 arc-minutes, with torsional rigidity rated at 12 N.m/arcmin, giving a predictable windup under load for positioning applications.
Obsolete — sourcing through independent channels
Schneider Electric lists this gearbox as obsolete. Available through independent surplus and broker channels. For a BOM line that already carries this order code, the sourcing posture is quoted-to-order against the required quantity; lead time and pricing vary per lot and are established at quote time.
Load ratings and service life at 100 rpm
Rated service life is 30,000 hours at 100 rpm and 30 °C ambient. The gearbox is lubricated for life, so no periodic oil changes are needed — a maintenance advantage in sealed or hard-to-access installations. Maximum axial force on the output shaft is 2100 N for the full 30,000-hour life, or 2800 N for a 10,000-hour duty cycle. Maximum radial force (applied at mid-distance from the output shaft) is 1500 N for 30,000 hours, or 2000 N for 10,000 hours. Shaft output sealing is IP54 — splash-resistant but not submersible. The housing is black anodised aluminium; the shaft is C45 carbon steel. Ambient operating range is -25 to 90 °C.