The GBX0800030701F is a straight-tooth planetary gearbox in the 80 mm frame size, delivering a 3:1 reduction ratio and a continuous output torque of 85 N.m (752.3 lbf.in) at 100 rpm and 30 °C. Maximum output torque reaches 136 N.m (1203.7 lbf.in) under the same conditions — the continuous rating is the one to size against for sustained duty. Torsional rigidity is 6 N.m/arcmin, and maximum backlash is 9 arc.min — this is a precision-grade unit for positioning axes that need repeatable indexing, not a high-backlash economy reducer. Efficiency is listed at 94 %, which is typical for a single-stage planetary — the loss is mostly gear mesh friction and bearing drag, not heat buildup in the housing.
Shaft loads and service life — the limits that govern the application
Rated service life is 30,000 hours at 100 rpm and 30 °C — the gearbox is lubricated for life, so no maintenance interval for oil changes. Maximum axial force (Fa) on the output shaft is 1200 N for 10,000-hour life, derated to 900 N for the full 30,000-hour target. Maximum radial force (Fr) at mid-span on the output shaft is 950 N for 10,000 hours, dropping to 650 N for 30,000 hours — these are the numbers to check against the belt or chain pull in the driven load. Shaft output IP54 means the output seal resists dust ingress and splashing water — suitable for a clean, dry machine environment but not washdown.
Noise and ambient range — what the 60 dB figure tells you
Noise level is 60 dB at 1 m, no-load — this is a quiet-running unit for a planetary; straight-tooth gears are inherently noisier than helical, so the 60 dB figure reflects the housing damping and bearing quality. Ambient operating range is -25 to 90 °C (-13 to 194 °F) — the lubricant and aluminium housing handle the full industrial enclosure temperature band.