Obsolete — what that means for your BOM line
Schneider Electric lists the GBX0800090841D as Obsolete. No official successor is recorded — the GBX series itself is legacy. For a line-down or BOM-fill situation, this part is sourced through independent surplus and broker channels; availability is lot-specific and confirmed at RFQ.
Torque ratings that decide the fit
The GBX0800090841D delivers 130 N.m continuous output torque and peaks at 208 N.m maximum at the 9:1 reduction ratio. Service life is rated 30,000 hours at 100 rpm at 30 °C ambient. At that same speed and temperature, the maximum axial force (Fa) is 900 N for the full 30,000-hour life, or 1,200 N if you accept a 10,000-hour service window. Radial force (Fr) applied mid-shaft is 650 N for 30,000 hours, 950 N for 10,000 hours. These load limits are interdependent — exceeding any one shortens the life figure.
Backlash and positioning accuracy
Maximum torsional backlash is 17 arcmin — a straight-tooth planetary at this price tier. For indexing or positioning axes where cumulative angular error matters, that 17 arcmin at the output translates to roughly 0.28° of lost motion under load reversal. If the application needs under 10 arcmin, this gearbox is not the fit. Torsional rigidity is 6.5 N.m/arcmin — the gearbox wind-up under rated continuous torque is about 20 arcmin (130 N.m / 6.5). That is elastic deflection, not backlash, but it adds to the total positioning error in a servo loop.
Mechanical integration notes
80 mm gearbox external diameter, black anodized aluminium housing, shaft in C45 steel. Mounts in any position — no oil level to worry about since it is lubricated for life. The shaft output seal carries IP54, meaning it resists dust ingress and splashing water but is not rated for washdown or submersion. Noise level is 60 dB at 1 m, no-load — about the hum of a quiet office printer. Under load the straight-tooth mesh will be louder; budget for an enclosure if operator exposure is a concern. Efficiency is 94 % — typical for a single-stage planetary. The 6 % loss is mostly gear mesh friction and bearing drag; at 130 N.m and 100 rpm output (about 1.36 kW mechanical), that is roughly 80 W dissipated as heat inside the housing. The aluminium body sheds that without a fan at 30 °C ambient, but derate if the enclosure traps heat.