60:1 planetary gearbox — 110 N.m continuous, 176 N.m peak
The GBX0800601003F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, with an 80 mm outer diameter and a 60:1 reduction ratio. Continuous output torque is 110 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 176 N.m under the same conditions — the peak figure governs acceleration and emergency stop loads, not steady-state duty. Rated service life is 30,000 hours at 100 rpm and 30 °C; the unit is lubricated for life, so no field re-greasing interval to schedule.
Backlash, stiffness, and load limits — positioning accuracy constraints
Maximum torsional backlash is 16 arc-minutes — this is the lost motion on direction reversal and matters for positioning loops that index or reverse load direction. Torsional rigidity is 6.3 N.m/arcmin, giving the stiffness the servo or stepper sees reflected back to the motor shaft. Maximum axial force on the output shaft is 1200 N at 100 rpm for a 10,000-hour life, derated to 900 N for the full 30,000-hour service life. Maximum radial force applied at mid-shaft is 950 N for 10,000 hours or 650 N for 30,000 hours — these are the limits for belt-drive or overhung load designs. Shaft output seal is rated IP54, so the gearbox handles dust and splash exposure but is not washdown-rated — keep it out of direct spray in food or wet environments.
Efficiency, noise, and environmental range
Efficiency is listed at 94 %, which is typical for a single-stage planetary — the 6 % loss is mostly gear mesh friction and bearing drag, and it sets the heat rejection the mounting surface must handle. Noise level is 60 dB at 1 m, no-load — this is a measured acoustic emission without load-induced gear deflection; expect a few dB higher under full torque. Housing is black anodized aluminium; output shaft is C45 carbon steel — standard for this torque class. The 80 mm body diameter fits common NEMA 34 or 56C motor face patterns with an adapter bracket.
Sourcing — obsolete, available through independent channels
Available through independent surplus and broker channels. No pin-compatible drop-in replacement from Schneider is documented — a substitution would require re-evaluating the mounting interface and torque curve.