Planetary gearbox — 80 mm frame, 3:1 reduction
The GBX0800031004F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 80 mm external diameter, with a 3:1 reduction ratio. Continuous output torque is 85 N.m (752.3 lbf.in) at 100 rpm and 30 °C; maximum output torque reaches 136 N.m (1203.7 lbf.in) under the same conditions. Maximum torsional backlash is 9 arc.min, and torsional rigidity is 6 N.m/arcmin — these figures define the positioning repeatability for indexing or registration applications.
Load ratings and service life
Service life is rated at 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no maintenance intervals for oil changes. Maximum axial force (Fa) on the output shaft is 1200 N for 10,000 hours, derating to 900 N for the full 30,000-hour service life at 100 rpm and 30 °C. Maximum radial force (Fr) applied at mid-distance from the output shaft is 950 N for 10,000 hours, derating to 650 N for 30,000 hours. Efficiency is 94 % across the operating range. Noise level at 1 m, no-load, is 60 dB.
Environmental and mechanical construction
Shaft output seal rating is IP54 — suitable for indoor industrial environments where dust and splash ingress are limited. The housing is black anodized aluminium; shaft material is C45 steel. The 80 mm diameter frame mounts via standard flange or face-mount patterns typical for this class of planetary gearbox.
Lifecycle status — obsolete, sourced to order
Schneider Electric lists the GBX0800031004F as obsolete. Available through independent distribution channels against an RFQ. Quantities are lot-specific; current pricing and lead time confirmed at quote. No pin-compatible direct replacement from the same family is documented.