Planetary gearbox, 80:1 — torque and stiffness for indexing
The Schneider Electric GBX1200801001F is a planetary gearbox with a straight-tooth design and an 80:1 reduction ratio. It delivers 260 N.m continuous output torque at 100 rpm and 30 °C, with a maximum peak of 416 N.m under the same conditions. Torsional rigidity is 12 N.m/arcmin and maximum backlash is 14 arc.min — these numbers define the positioning accuracy for servo or indexing applications where the load reversal or dwell accuracy matters. The 120 mm frame diameter and black anodized aluminium housing suit it for compact mounting in machine frames or enclosed drives where corrosion resistance and heat shedding are considerations.
Efficiency, noise, and service life — the maintenance envelope
Rated 94 % efficiency, which keeps the thermal rise low in enclosed spaces — the gearbox is lubricated for life, so there is no regreasing interval over the 30000-hour design life at 100 rpm and 30 °C. Noise level is 65 dB at 1 m, no-load — this is the acoustic baseline for indoor installations where operator exposure limits apply. The shaft output seal carries IP54 ingress protection, meaning it resists dust ingress and splashing water at the output shaft, but the motor interface side is not sealed — mount the gearbox in a cabinet if the environment is wet.
Sourcing reality — obsolete, sourced through independent channels
Available through independent surplus and broker channels. The axial and radial force limits at 100 rpm are 2100 N (30000 h) or 2800 N (10000 h) axial, and 1500 N (30000 h) or 2000 N (10000 h) radial — these set the overhung load budget for the output bearing when sizing the driven pulley or sprocket.