Planetary gearbox for servo and motion axes
The GBX1600051002F is a Schneider Electric planetary gearbox with a 160 mm housing diameter and straight-cut teeth, delivering a 5:1 reduction ratio. It is built for continuous-duty servo and stepper-motor applications where positioning accuracy and torque density matter. Continuous output torque is 450 N.m at 100 rpm and 30 °C, with a maximum intermittent rating of 720 N.m at the same speed and temperature — the peak figure governs acceleration and emergency-stop loads, while the continuous figure sets the thermal limit for production cycles.
Torque, backlash, and stiffness — the fit trio
Maximum torsional backlash is 6 arc.min, which suits general-purpose indexing and positioning axes but not ultra-precision rotary tables — a lower-backlash gearbox (2 arc.min or below) would be needed for sub-arcminute positioning loops. Torsional rigidity is 38 N.m/arcmin, meaning the gearbox twists 1 arcmin for every 38 N.m of applied torque. This stiffness, combined with the 94 % efficiency, keeps thermal rise and windup predictable under load. Rated service life is 30,000 hours at 100 rpm and 30 °C, with the gearbox lubricated for life — no maintenance interval for oil changes, which reduces total cost of ownership in hard-to-access installations.
Sourcing an obsolete motion component
Available through independent surplus and broker channels. Quantities are confirmed at RFQ; pricing depends on lot size and market availability.
Environmental and mechanical limits
The shaft output seal carries IP54 protection — suitable for dry, dust-protected enclosures but not washdown or outdoor service without additional shaft sealing. Maximum axial force (Fa) on the output shaft is 6000 N at 100 rpm for the 30,000-hour service life, or 8000 N if the application accepts a reduced 10,000-hour life. Maximum radial force (Fr) is 4200 N at 100 rpm for the long-life rating, 6000 N for the short-life rating — both measured at mid-span on the output shaft. Noise level is 70 dB at 1 m, no-load — typical for a planetary gearbox of this size and straight-tooth design. The black anodised aluminium housing and C45 steel shaft are standard for this torque class.