32:1 planetary gearbox — 44 N.m continuous, 70 N.m peak
The GBX0600321404F is a 60 mm-diameter planetary gearbox from Schneider Electric's GBX series, with straight-cut teeth and a 32:1 reduction ratio. It delivers 44 N.m continuous output torque at 100 rpm and can handle 70 N.m peak — the figure that governs intermittent overloads like start-up or reversing loads on a conveyor or indexing table. Rated service life is 30,000 hours at 100 rpm and 30 °C ambient — that's about 3.4 years of continuous 24/7 operation before the lubricant degrades. The gearbox is lubricated for life, so no maintenance schedule for oil changes, but the 30,000-hour figure is the replacement trigger in a PM plan.
Efficiency, noise, and mechanical limits
Efficiency is listed at 94 % — typical for a single-stage planetary with straight teeth at this ratio. The 6 % loss is mostly gear mesh friction and bearing drag; it means the input motor needs to supply about 6 % more power than the output shaft delivers, which factors into the motor sizing for the drive train. Noise level is 58 dB at 1 m, no-load — quiet enough for a packaging line or lab environment where operator exposure matters. The straight-tooth design is inherently noisier than helical at higher speeds, but at 100 rpm output (3,200 rpm input through a 32:1 reduction) the tooth engagement frequency stays low enough that 58 dB is realistic. Maximum torsional backlash is 20 arc.min — this is the angular play between input and output when reversing direction. For positioning applications like a rotary indexer, 20 arc.min at the output translates to about 0.35 mm of linear error at a 100 mm radius; if the application needs tighter positioning, a lower-backlash gearbox (e.g. 5-10 arc.min) would be the better fit. Torsional rigidity is 2.5 N.m/arcmin — this tells you how much the gearbox twists under load. At the continuous 44 N.m, the wind-up is about 17.6 arcmin, which adds to the backlash when the load reverses.
Obsolete — sourced through independent channels
Schneider Electric lists the GBX0600321404F as obsolete. The part is available through independent surplus and broker channels — quantities are lot-specific and confirmed at RFQ. No pin-compatible direct replacement exists under the Schneider part number.
The gearbox has a 60 mm external diameter and a shaft output with IP54 protection — suitable for environments with dust and splash exposure, but not washdown. The housing is black anodized aluminium; the shaft is C45 steel. The straight-tooth design means it mates with standard pinions and couplings in the same module. Maximum axial force on the output shaft is 450 N for the full 30,000-hour life, or 600 N if you accept a shorter 10,000-hour service life. Radial force limits are 340 N and 500 N respectively, measured at mid-span on the shaft. These limits govern overhung load from a belt drive or chain sprocket — exceeding them shortens bearing life faster than the 30,000-hour rating. The lubricant is factory-filled and sealed for life — no breather or drain plug, so orientation matters: mount it so the shaft seals are not submerged in standing oil during extended downtime.