Planetary gearbox with 32:1 reduction and 120 N.m continuous torque
The GBX0800321003F is a straight-tooth planetary gearbox in the 80 mm frame size, delivering a 32:1 reduction ratio with 120 N.m continuous output torque at 100 rpm and 30 °C ambient. Maximum output torque reaches 192 N.m under the same conditions, with a service life rated at 30,000 hours at 100 rpm and 30 °C. Efficiency is listed at 94 %, and the gearbox is lubricated for life — no maintenance interval for oil changes.
Torque, backlash, and mechanical limits for sizing
Torsional backlash is rated at 14 arc.min maximum — this is a standard-precision planetary, not a zero-backlash unit for servo positioning loops. Torsional rigidity is 6.5 N.m/arcmin, which governs wind-up under load; the shaft is C45 steel and the housing is black anodized aluminium. Maximum axial force on the output shaft is 1200 N at 100 rpm for 10,000 hours, derating to 900 N for the full 30,000-hour service life. Maximum radial force is 650 N at mid-span on the output shaft for 30,000 hours, or 950 N for 10,000 hours — important for belt or chain drive applications.
Obsolete — sourcing through independent channels
Available through independent surplus and broker channels; quantities are lot-specific and confirmed at RFQ.