Planetary gearbox, 60 mm frame, 4:1 reduction
The GBX0600040852G is a 60 mm-diameter planetary gearbox with straight-cut teeth and a 4:1 reduction ratio. It delivers 38 N.m continuous output torque at 100 rpm, with a peak of 61 N.m at the same speed. The 96 % efficiency means minimal power loss through the reduction stage — useful for servo or stepper applications where every watt counts. Rated service life is 30,000 hours at 100 rpm and 30 °C ambient, lubricated for life — no maintenance schedule for grease changes. Torsional rigidity is 2.3 N.m/arcmin, and maximum backlash is 16 arcmin, which puts it in the standard-precision class rather than low-backlash or zero-backlash grades.
Mechanical limits and mounting
Shaft output is IP54 — protected against dust ingress and splash, but not submersion. The housing is black anodized aluminium, the shaft is C45 steel. Mounting position is any orientation, which simplifies layout in tight machine frames. Maximum axial force on the output shaft is 450 N for the full 30,000-hour life, or 600 N if you accept a shorter 10,000-hour service interval. Radial force limits are 340 N and 500 N respectively, measured at mid-span of the output shaft. These numbers govern overhung load capacity — a pulley or sprocket mounted on the shaft must stay within these bounds to avoid bearing fatigue. Noise level is 58 dB at 1 m under no-load conditions — audible but not intrusive in a typical machine enclosure.
Obsolete — sourced through independent channels
Schneider Electric lists the GBX0600040852G as obsolete. No official successor or cross-reference is recorded from the manufacturer. The part is sourced through independent distribution and surplus channels; quantities are confirmed at RFQ, and the price reflects the broker market rather than factory-direct pricing. For a BOM that requires this exact 60 mm, 4:1 planetary gearbox, the GBX0600040852G remains the correct order code. The straight-tooth design and 16 arcmin backlash are specific to this variant — a replacement from another series would need a mechanical fit check on the mounting flange, shaft diameter, and keyway.