What this gearbox delivers on a motion axis
The GBX1600120703F is a 160 mm-diameter planetary gearbox with a 12:1 reduction ratio, designed to multiply servo or stepper motor torque while maintaining positioning accuracy within 10 arcmin of backlash. Continuous output torque is 800 N.m at 100 rpm and 30 °C, with a peak ceiling of 1280 N.m for short-duration overloads — the continuous figure governs the duty cycle on a pick-and-place or indexing axis. Torsional rigidity of 41 N.m/arcmin means the gearbox resists windup under load; for a positioning system, this stiffness directly affects the achievable settling time after a move.
Load limits that matter for the BOM
Rated service life is 30,000 hours at 100 rpm and 30 °C — the gearbox is lubricated for life, so no oil-change interval to schedule. Maximum axial force on the output shaft is 6000 N for the full 30,000-hour life, or 8000 N if you accept a 10,000-hour service life — the lower figure is the safe design target for a continuous-duty application. Maximum radial force is 4200 N at mid-span for 30,000 hours, rising to 6000 N for 10,000 hours — overhung loads from a belt pulley or pinion must stay within these limits to avoid bearing fatigue. Efficiency is 94 %, meaning 6 % of input power is lost as heat — for a 10 kW input, that is 600 W of thermal dissipation that the housing and mounting surface must sink.
Environmental fit and mounting check
Shaft output seal is rated IP54 — protected against dust ingress and splashing water, but not washdown; the gearbox suits dry indoor machine builds, not food or outdoor duty. Housing is black anodized aluminium; the output shaft is C45 carbon steel — standard materials for a general-purpose industrial gearbox. Noise level is 70 dB at 1 m, no-load — roughly the sound of a vacuum cleaner at conversational distance; expect a few dB higher under load.