32:1 reduction in a 160 mm planetary frame
The GBX1600321083D is a Schneider Electric planetary gearbox from the GBX series with a 32:1 reduction ratio, an 800 N·m continuous output torque rating, and a 160 mm gearbox external diameter — built around straight-cut gearing in a black anodized aluminium housing with a C 45 steel output shaft. Maximum output torque is 1280 N·m, so the gearbox carries roughly 1.6× its continuous figure in peak demand — useful for sizing acceleration cycles on a servo-driven axis without derating the reducer to its continuous ceiling.
Torque envelope and shaft loading
Continuous output torque sits at 800 N·m with a 1280 N·m maximum — the peak/continuous ratio is the figure to budget for cyclic shock loads such as indexing or start/stop duty on a conveyor or pick-and-place axis. Maximum radial force Fr is 4200 N at 100 rpm applied at mid-distance from the output shaft over a 30000 hour life at 30 °C, rising to 6000 N if the duty is capped at 10000 hours; maximum axial force Fa is 6000 N at the 30000-hour rating, 8000 N at the 10000-hour rating. At a 30 °C ambient and 100 rpm, the rated service life is 30000 hours — the gearbox is lubricated for life, so no relube interval is on the nameplate; sizing the application below the continuous torque ceiling is what protects that envelope.
Precision, noise, and the operating envelope
Maximum torsional backlash is 10 arc.min and torsional rigidity is 41 N·m/arcmin — adequate for general motion control and positioning where sub-arcminute backlash is not required, but a stop to consider on high-precision indexing axes. Moment of inertia is 6.36 g.cm² at the input, so the gearbox adds minimal reflected inertia to the motor — a small figure that keeps servo loop tuning tractable when paired with a typical servo drive. Noise level is 70 dB at 1 m under no-load, shaft output sealing is IP54, and the operating ambient range is -25 to 90 °C — sealed enough for an enclosure-mounted reducer, but not rated for washdown or outdoor exposure. Efficiency is 94 %, the reflection loss between input and output at the 32:1 ratio — typical for a single-stage planetary with straight teeth, and the figure to fold into motor torque sizing.
Sourcing posture for a discontinued gearbox
Independent distribution is the realistic channel here — quoted to order against the RFQ, with lot-specific availability confirmed at quote time. No price, stock count, or lead-time figure is asserted; that is the buyer's RFQ deliverable, not the spec sheet.