Planetary gearbox, 80 mm frame, 5:1 reduction
The GBX0800050842D is a straight-tooth planetary gearbox in the GBX series, 80 mm external diameter, with a 5:1 reduction ratio. Continuous output torque is 110 N.m, with a maximum of 176 N.m — the continuous figure governs the duty cycle for servo or stepper applications where the load profile is sustained. Torsional rigidity is 6 N.m/arcmin, and maximum torsional backlash is 12 arc.min — the backlash figure is the one to check against the positioning repeatability budget of the axis.
Load ratings and service life
Rated service life is 30 000 h at 100 rpm at 30 °C ambient — the life calculation assumes continuous operation at that speed and temperature; higher speeds or loads reduce the L10 figure. Maximum axial force Fa is 1200 N at 100 rpm for 10 000 h at 30 °C, derating to 900 N for the 30 000 h target. Maximum radial force Fr is 950 N at 100 rpm for 10 000 h, derating to 650 N for 30 000 h. The gearbox is lubricated for life — no maintenance schedule for oil changes, which simplifies installation in sealed or hard-to-access positions.
Environmental and construction details
The shaft output seal is rated IP54 — suitable for dry indoor environments but not washdown or outdoor exposure. Housing is black anodized aluminium; shaft material is C45 steel. The gearbox can be mounted in any position. Noise level is 60 dB at 1 m, no-load — this is the acoustic emission at rated speed without external load; actual noise under load depends on the driven mechanism and mounting stiffness.
Lifecycle status — obsolete, sourced to order
The GBX0800050842D is classified as obsolete per the manufacturer's lifecycle record.