5:1 planetary stage — 450 N.m continuous, 720 N.m peak
The GBX1600050552F is a 160 mm-diameter planetary gearbox from Schneider Electric's GBX series, delivering a 5:1 reduction ratio. Continuous output torque is 450 N.m at 100 rpm and 30 °C, with a peak overload capacity of 720 N.m at the same speed and temperature. Maximum torsional backlash is held to 6 arc.min, and torsional rigidity is 38 N.m/arcmin — these numbers matter for servo-driven positioning axes where lost motion in the gear train directly reduces contouring accuracy.
Load ratings and service life at 100 rpm
Rated service life is 30,000 hours at 100 rpm and 30 °C, running at the continuous torque of 450 N.m. The gearbox is lubricated for life, eliminating periodic oil changes in the field. Maximum radial force (Fr) at the output shaft is 4200 N for the 30,000-hour life target, or 6000 N if the application accepts a 10,000-hour service interval. Maximum axial force (Fa) follows the same pattern: 6000 N for 30,000 hours, 8000 N for 10,000 hours. Both ratings assume force applied at mid-distance from the output shaft at 100 rpm and 30 °C. Efficiency is 94 %, which means 6 % of the input power is lost as heat inside the housing. The black anodised aluminium housing dissipates that heat; the shaft output seal carries an IP54 ingress rating, so the gearbox is suited for dry indoor environments but not pressurised washdown.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX1600050552F as obsolete. No official successor or pin-compatible replacement is recorded from the manufacturer. Available through independent surplus and broker channels. No stock-holding claim is made here — each procurement is quoted to order.