Torque and duty cycle — what 800 N.m continuous means
The GBX1600200551F is a 160 mm-diameter planetary gearbox with a 20:1 reduction ratio, delivering 800 N.m continuous output torque at 100 rpm and 30 °C ambient. Maximum output torque peaks at 1280 N.m under the same conditions — the extra headroom handles short-duration overloads without permanent deformation. Rated service life is 30,000 hours at the continuous torque rating, lubricated for life with no maintenance interval for grease changes.
Backlash and positioning accuracy
Maximum torsional backlash is 10 arc.min — this is a standard-precision planetary stage, not a zero-backlash unit. For indexing or positioning applications that demand tighter repeatability, a preloaded or dual-drive arrangement would be needed. Torsional rigidity is 41 N.m/arcmin, which means the output shaft twists about 0.024° under the continuous torque load — a figure to budget into any positioning error budget.
Sourcing — obsolete, quoted to order
Schneider Electric lists the GBX1600200551F as obsolete. No direct replacement or successor order code is published by the manufacturer. This gearbox is sourced through independent distribution channels. No stock-holding claim is made; each order is quoted individually.
Mechanical integration — shaft loads and sealing
Output shaft is C45 steel, and the housing is black anodized aluminium. The shaft output seal is rated IP54 — suitable for indoor environments with dust and splash exposure, but not for washdown or submersion. Maximum axial force on the output shaft is 6000 N at 100 rpm for the full 30,000-hour life, and 8000 N for a 10,000-hour duty. Radial force limits are 4200 N at mid-shaft for 30,000 hours, 6000 N for 10,000 hours. Overhung loads from belt drives or pinions must stay within these envelopes to avoid bearing fatigue. Ambient operating range is -25 °C to +90 °C — the lubricant is factory-filled and sealed for life, so no viscosity adjustments are possible in the field.