32:1 planetary stage — torque and backlash for positioning
The GBX0600320704F is a 60 mm-diameter planetary gearbox with a 32:1 reduction ratio, delivering 44 N.m continuous output torque at 100 rpm and 30 °C ambient, with a maximum intermittent torque of 70 N.m under the same conditions. Maximum torsional backlash is 20 arcmin — this is the total angular play across the gear train under reversing load, which sets the positioning repeatability floor for indexing or pick-and-place axes. Rated service life is 30,000 hours at 100 rpm and 30 °C, lubricated for life — no field regreasing interval, so the gearbox is sealed at the factory and the oil change is not part of the maintenance schedule.
Sourcing reality — obsolete, available through independent channels
Sourced through independent surplus and broker channels against an RFQ; quantities are lot-specific and confirmed at quote time. For a BOM freeze or line-down replacement, verify the mounting envelope (60 mm diameter, black anodized aluminium housing) and the shaft interface (C 45 steel) against the existing installation before committing.
Mechanical limits — axial and radial force budgets
Maximum axial force Fa is 450 N at 100 rpm for the full 30,000-hour service life, or 600 N for a 10,000-hour duty cycle — the bearing life follows the inverse cube of the applied thrust load. Maximum radial force Fr is 340 N at 100 rpm, force applied at mid-distance from the output shaft, for 30,000 hours; 500 N for 10,000 hours. Overhung loads from belt drives or chain sprockets must stay within these limits to avoid premature bearing wear. Torsional rigidity is 2.5 N.m/arcmin — this is the stiffness of the output shaft under twisting load, relevant for servo applications where windup affects settling time.
Environmental fit — IP54 shaft output, wide temperature range
Shaft output sealing is IP54 — dust-protected and splash-resistant at the shaft exit, but not rated for washdown or submerged service. The housing itself is sealed, but the rotating shaft seal is the ingress boundary. Noise level is 58 dB at 1 m, no-load — typical for a straight-tooth planetary stage of this size; the noise increases under load but stays below 65 dB in most applications.