Obsolete — sourcing through independent channels
The GBX0800040702D: Available through independent surplus and broker channels.
4:1 planetary reduction with 115 N.m continuous torque
This is a straight-tooth planetary gearbox with a 4:1 reduction ratio, delivering a continuous output torque of 115 N.m and a maximum output torque of 184 N.m. The 12 arcmin maximum torsional backlash sets the positioning repeatability for indexing or servo applications. Rated efficiency is 96 %, meaning 4 % of input power is lost as heat — relevant for thermal budgeting in the drive train.
Mechanical interface and environmental ratings
The gearbox has an 80 mm external diameter, black anodized aluminium housing, and a C45 steel output shaft. It can be mounted in any position, and the shaft output carries an IP54 ingress protection rating — suitable for indoor environments with dust and splash exposure, but not washdown. Service life is rated at 30,000 hours at 100 rpm and 30 °C. The unit is lubricated for life, requiring no maintenance intervention over its service interval.
Load capacity and stiffness
Maximum axial force Fa is 1200 N at 100 rpm for a 10,000-hour life, derating to 900 N for the full 30,000-hour life. Maximum radial force Fr is 950 N at 100 rpm for 10,000 hours, derating to 650 N for 30,000 hours — both measured at mid-distance from the output shaft. Torsional rigidity is 6 N.m/arcmin, and the moment of inertia is 0.52 g.cm² — these figures govern the dynamic response when coupling to a servo motor or stepping drive.