Planetary gearbox with 8:1 reduction — torque and backlash limits
The GBX1600080704F is a straight-tooth planetary gearbox with 160 mm housing diameter and 8:1 reduction ratio. Continuous output torque is 3982.8 lbf·in (450 N·m) at 100 rpm and 86 °F (30 °C); maximum output torque reaches 6372.5 lbf·in (720 N·m) under the same conditions. Maximum torsional backlash is 6 arc·min — this sets the positioning repeatability floor for indexing or servo-driven axes. Torsional rigidity is 38 N·m/arcmin, giving a stiffness baseline for the driveline. Rated service life is 30000 hours at 100 rpm and 30 °C, with the unit lubricated for life — no scheduled oil changes. Ambient temperature range for operation is -25 to 90 °C.
Load ratings — axial and radial force limits
Maximum axial force Fa is 6000 N at 100 rpm for the 30000-hour life target, and 8000 N for a 10000-hour duty cycle at 30 °C. Maximum radial force Fr is 4200 N (30000 h) or 6000 N (10000 h), with force applied at mid-distance from the output shaft. Shaft material is C45 steel; housing is black anodized aluminium. Shaft output sealing is IP54 — protects against dust ingress and splash, but not pressurized washdown.
Lifecycle and sourcing — obsolete, sourced to order
Available through independent surplus and broker channels.