The GBX0800030552F is a straight-tooth planetary gearbox from Schneider Electric's GBX series, sized for a 3:1 speed reduction. At 100 rpm input, it delivers a continuous output torque of 85 N.m and can handle peaks up to 136 N.m — the maximum output torque figure that governs overload events like a jam or a hard start. The 94 % efficiency means about 6 % of the input power is lost as heat inside the gearbox — typical for a single-stage planetary. That heat stays manageable because the unit is lubricated for life and rated for a 30000-hour service life at 100 rpm and 30 °C ambient. Noise is listed at 60 dB at 1 m under no-load — quiet enough for indoor conveyor or packaging lines where operator exposure matters. The 80 mm housing diameter and black anodized aluminium body keep the footprint compact for tight panel or machine-frame mounting.
Load limits and stiffness — sizing the output shaft for real duty
The output shaft is made of C45 steel and carries two load ratings that matter for bearing life: maximum axial force Fa of 1200 N and maximum radial force Fr of 650 N, both at 100 rpm over a 30000-hour target life. Exceed these and the bearing wear accelerates — the gearbox may still turn but the service life drops below the 30000-hour figure. Torsional rigidity is 6 N.m/arcmin — that is the stiffness the gearbox presents to the load. Combined with a maximum torsional backlash of 9 arc.min, this tells you how much lost motion to expect when the motor reverses direction. For positioning axes that index and hold, the 9 arc.min figure is the window the controller has to compensate for. The IP54 rating on the shaft output means the seal keeps out dust and splashing water — fine for most factory-floor environments but not for washdown zones. The ambient operating range of -25 to 90 °C covers heated plants and unheated warehouses.
Obsolete lifecycle — sourcing the GBX0800030552F today
Schneider Electric lists the GBX0800030552F as obsolete. That means new production has ended and the only channel is independent surplus or broker stock — new-old-stock units that were manufactured before the phase-out. No stock-holding claim is made here; each lot is verified before quoting.