Torque and backlash — the real selection numbers
The GBX1600050704F: Continuous output torque is 450 N.m at 100 rpm and 30 °C — that's the sustained load the gearbox carries without exceeding the 30,000-hour service life target. Maximum output torque peaks at 720 N.m under the same conditions, but that's the short-duration ceiling for acceleration or shock loads, not the running spec. Torsional backlash is 6 arcmin maximum — for a 5:1 ratio stage that's typical of a precision planetary, not a high-backlash economy unit.
Shaft loads and mounting constraints
Maximum radial force Fr is 4200 N at 100 rpm for the 30,000-hour life, rising to 6000 N if you accept a 10,000-hour service window — both measured at mid-distance on the output shaft. Maximum axial force Fa is 6000 N at 100 rpm for 30,000 hours, or 8000 N for 10,000 hours — the thrust bearing limits the overhung load, not the shaft itself. Shaft output seal is IP54 — fine for a dry indoor machine tool or conveyor drive, but not for washdown environments.
Lifecycle reality — obsolete, sourced to order
Available through independent distribution channels; quantities are confirmed at RFQ and typically come from surplus or last-time-buy inventory.
Materials and operating envelope
Housing is black anodized aluminium; shaft material is C45 carbon steel — standard for this torque class, no corrosion-resistant coating. Ambient operating range is -25 °C to 90 °C, so it handles warm machine cabinets but not cryogenic or high-heat process zones. Lubricated for life — no maintenance ports or regrease intervals to schedule.