Planetary gearbox, 9:1 reduction, 130 N.m continuous — now obsolete
The GBX0800090854G is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 80 mm diameter, with a 9:1 reduction ratio. It delivers 130 N.m continuous output torque at 100 rpm and 30 °C, with a maximum of 208 N.m under the same conditions.
Torque, life, and stiffness — the numbers that matter for fit
Continuous output torque is 130 N.m at 100 rpm and 30 °C; the maximum output torque reaches 208 N.m at the same speed and temperature. These figures define the gearbox's sustained and peak load capability — stay within the continuous rating for the 30,000-hour service life. Torsional rigidity is 6.5 N.m/arcmin, and maximum torsional backlash is 14 arc.min. For positioning applications, the backlash figure tells you the angular play at the output shaft under load reversal — 14 arc.min is standard for precision planetary gearboxes, not ultra-low-backlash. Rated efficiency is 94 %, which means about 6 % of input power is lost as heat. In a continuous-duty application, factor that into the thermal budget of the driven system.
Mounting, environment, and load limits
Mounts in any position — simplifies panel or machine-frame layout. The housing is black anodized aluminium; the shaft is C45 steel. Shaft output is IP54 — protected against dust ingress and splashing water, but not pressurized washdown. For food-and-beverage lines with hose-down cleaning, a higher IP-rated gearbox or additional shaft seal would be needed. Maximum axial force Fa is 1200 N at 100 rpm for 10,000 hours, or 900 N for 30,000 hours at 30 °C. Maximum radial force Fr is 950 N at 100 rpm for 10,000 hours, or 650 N for 30,000 hours, applied mid-shaft. These limits govern overhung loads from pulleys, sprockets, or direct-coupled loads. Noise level is 60 dB at 1 m, no-load — roughly conversational level. The straight-tooth design is inherently noisier than helical, but 60 dB is acceptable for most industrial environments. Lubricated for life — no maintenance oil changes needed.
Sourcing an obsolete gearbox — what to expect
Schneider Electric's lifecycle status is 'Obsolete' — no longer manufactured. There is no official successor order code recorded. Sourcing goes through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ time. For a BOM freeze or a line-down replacement, the 80 mm diameter and 9:1 ratio are the critical fit dimensions. No pin-compatible drop-in replacement is documented from Schneider. A functional equivalent from another manufacturer would need to match the 80 mm frame, 9:1 ratio, 130 N.m continuous torque, and the C45 shaft material.