4:1 planetary stage — 115 N.m continuous at 100 rpm
The GBX0800041402F is a Schneider Electric planetary gearbox with a 4:1 reduction ratio, delivering 115 N.m continuous output torque at 100 rpm and 30 °C ambient. This is the rating that governs the duty cycle — the gearbox is sized for applications where the load torque stays under 115 N.m continuously, with peaks up to 184 N.m allowed at the same speed. Straight-tooth planetary construction with 9 arcmin maximum torsional backlash. That backlash figure is the total angular play across the gear train — for positioning applications requiring repeatability, this sets the minimum resolution the downstream encoder or motor can correct for. Efficiency is 94 % at rated load, which means 6 % of the input power is lost as heat in the gear mesh and bearings. For a 115 N.m output at 100 rpm (roughly 1.2 kW mechanical), the thermal dissipation is about 72 W — well within the black anodized aluminium housing's natural convection capability without forced cooling.
Service life and mechanical limits
Rated service life is 30,000 hours at 100 rpm and 30 °C ambient — that is about 3.4 years of continuous operation at nameplate conditions. The gearbox is lubricated for life, so no oil changes or regreasing intervals are needed over that service window. Maximum axial force on the output shaft is 1200 N for a 10,000-hour life target, dropping to 900 N for the full 30,000-hour rating. Maximum radial force applied at mid-shaft is 950 N for 10,000 hours or 650 N for 30,000 hours. These limits are the bearing life constraint — overshoot them and the service life drops faster than the linear ratio. Torsional rigidity is 6 N.m/arcmin — the shaft twists 1 arcminute per 6 N.m of applied torque. In a servo loop, this stiffness determines the resonant frequency of the mechanical system; a lower rigidity shifts the resonance down and may require the servo tuning to notch-filter it out.
Environmental fit and mounting
The shaft output carries an IP54 rating — dust-protected and splash-resistant at the seal face, but the gearbox body itself is not sealed. In washdown or outdoor installations, the motor side and the driven equipment interface need their own sealing; the gearbox is not rated for hose-down environments. The C 45 steel output shaft and black anodized aluminium housing are standard for this class — no corrosion-resistant coating, so avoid caustic washdown or salt-laden air without additional protection. External diameter is 80 mm (3.1 in), which defines the mounting bore or flange pattern. The straight-tooth planetary design produces a noise level of 60 dB at 1 m under no-load conditions — audible but well below typical workshop background noise.
Sourcing — obsolete, quoted to order
Schneider Electric lists the GBX0800041402F as obsolete. This means the part is no longer manufactured and is available only through independent surplus and broker channels. For a BOM line that requires this exact gearbox, the sourcing path is a per-lot RFQ through independent distribution. Quantities are confirmed at quote time — no blanket stock assumption applies. The 94 % efficiency, 4:1 ratio, and 115 N.m continuous torque are the spec lines to match if evaluating a functional replacement from another series or manufacturer.