40:1 reduction in an 80 mm frame
The GBX0800401402F: This is a straight-tooth planetary gearbox, 80 mm outer diameter, delivering a 40:1 reduction ratio. Continuous output torque is 110 N.m at 100 rpm and 30 °C; maximum output torque reaches 176 N.m under the same conditions. The 14 arc.min maximum torsional backlash is typical for a commercial-grade planetary stage — acceptable for positioning axes that don't require zero-backlash precision, but not for a servo press or indexing table that needs sub-arcminute repeatability.
Rated life and thermal limits
Service life is rated at 30,000 hours at 100 rpm and 30 °C. The gearbox is lubricated for life — no maintenance interval for oil changes. Ambient operating range is -25 to 90 °C. Shaft output seal is rated IP54, so it handles dust and splash but not direct washdown. Radial force limit at the output shaft mid-point is 650 N for the full 30,000-hour life, or 950 N if you accept a 10,000-hour service window. Axial force (Fa) is 900 N at 30,000 hours, 1200 N at 10,000 hours.
94 % efficiency — what that means in the drive train
The 94 % efficiency rating means about 6 % of input power is lost as heat inside the gearbox. For a 110 N.m continuous output at 100 rpm (roughly 1.15 kW mechanical), the heat loss is about 70 W — negligible for a well-ventilated installation, but worth noting if the gearbox is enclosed in a non-ventilated cabinet with other heat sources. Noise level is 60 dB at 1 m, no-load — quiet enough for most production floor environments.
Construction and materials
Housing is black anodized aluminium; shaft material is C45 carbon steel. The gearbox uses straight teeth — not helical — so it will produce slightly more audible whine under load than a helical planetary stage of the same ratio. The 80 mm diameter frame is a common size for NEMA 23 or 34 motor mounting patterns, but confirm the input flange and shaft dimensions against your motor before specifying.