Frame, reduction, and the torque envelope it sets
The GBX1600080844D is a planetary gearbox from the Schneider Electric GBX family — 160 mm gearbox external diameter, straight-tooth construction, 8:1 reduction, output via a C 45 shaft (cites:,). Continuous output torque is 450 N·m with a maximum output torque of 720 N·m — the peak figure is the short-duration ceiling the drivetrain sees during accel/decel transients, not the steady-state sizing value (cites:,).
Shaft loads bounded by duty hours, not just by nameplate
Maximum radial force Fr is 4200 N at 100 rpm applied at mid-distance from the output shaft during the 30000-hour life at 30 °C, rising to 6000 N if the duty is capped at 10000 hours over the same temperature — the hour figure is the binding limit, not the higher headline (cites:). Maximum axial force Fa follows the same envelope: 6000 N at 100 rpm over 30000 hours at 30 °C, 8000 N over 10000 hours at 30 °C. Sized this way, the gearbox lives its 30000-hour rating without premature bearing wear (cites:,). Service life is rated at 30000 hours at 100 rpm at 30 °C ambient — operation above that duty point, or in ambient temperatures across the −25…90 °C operating window, must be re-derived against the published derating curves (cites:,).
Positioning accuracy: backlash and torsional rigidity
Maximum torsional backlash is 6 arc.min — the angular slop between input and output at reversal, sized for servo positioning where sub-arc-minute repeatability is not required (cites:). Torsional rigidity is 38 N·m/arcmin, so the shaft wind-up under peak load stays within the positioning budget the drivetrain was designed for (cites:). Moment of inertia at the input is 4.63 g·cm², small enough that the gearbox does not dominate the drivetrain's reflected inertia when paired with a servo in its power class (cites:).
Acoustic and efficiency footprint
Efficiency is 96 %, so the gearbox absorbs roughly 4 % of the transmitted power as heat — at a continuous 450 N·m output that loss defines the housing thermal budget (cites:). Noise level is 70 dB at 1 m, no-load — a useful ceiling for clean-room and GMP-adjacent enclosures where the gearbox sits inside the acoustic envelope of the machine (cites:).
Build, sealing, and panel-side fit
The housing is black anodized aluminium and the unit is lubricated for life — no scheduled oil service, so the gearbox mounts and runs without an oil-fill access in the panel layout (cites:,). Shaft output is sealed to IP54 — adequate for indoor panel-side mounting away from direct washdown or spray (cites:). Mounting position is unrestricted (any position), so the gearbox can be oriented to match the drivetrain packaging without re-derating the service-life figures (cites:).
Active production and RFQ posture
Specified into the BOM and quoted to order through independent distribution — availability, current pricing, and volume breaks confirmed at RFQ against the requested quantity (cites:, C1).