Planetary gearbox, 80 mm, 20:1 — what it delivers
The GBX0800201401F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, 80 mm outer diameter, with a 20:1 reduction ratio. It's built for servo and stepper motor applications where compact inline mounting and low backlash matter. Continuous output torque is 120 N.m at 100 rpm and 30 °C, with a maximum intermittent torque of 192 N.m under the same conditions. The 94% efficiency figure means power loss through the gear train stays under 6% at rated load. Torsional backlash is 14 arc-min maximum, and torsional rigidity is 6.5 N.m/arcmin — this combination tells you the gearbox has measurable windup under load, typical for a straight-tooth planetary at this price point. For applications needing sub-arc-min positioning, a helical or precision planetary would be the next step up.
Load ratings and service life — what 30000 hours means
Rated service life is 30000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no oil changes, no maintenance schedule. The life rating is load-dependent: at the same speed and temperature, maximum axial force (Fa) is 1200 N for 10000 hours but drops to 900 N for the full 30000-hour target. Maximum radial force (Fr) applied at mid-distance on the output shaft is 950 N for 10000 hours, or 650 N for 30000 hours at 30 °C. These are the numbers to check when sizing the output coupling or belt drive — exceeding them shortens gear life faster than torque overload. Shaft output is rated IP54, so it's splash-resistant but not submersible. The housing is black anodized aluminium, and the shaft material is C45 steel. Operating ambient range is -25 to 90 °C.
Obsolete — sourcing reality for the GBX0800201401F
Schneider Electric lists the GBX0800201401F as obsolete. Availability is through independent surplus and excess-inventory channels. Quantities are lot-specific, and condition varies — some units are new-in-box from cancelled orders, others are pulled from decommissioned lines. Each unit is inspected before shipment; the sealed-box ones are as good as the day they left the factory. For a BOM that needs this exact ratio and frame size, the GBX0800201401F is still findable on the surplus market.