60 mm planetary gearbox — 32:1 reduction, 44 N.m continuous
The GBX0600321003F is a 60 mm diameter planetary gearbox from Schneider Electric's GBX series, with straight-cut teeth and a 32:1 reduction ratio. It delivers 44 N.m continuous output torque at 100 rpm and 30 °C, with a maximum peak of 70 N.m for overload events. The 94 % efficiency means about 6 % of input power is lost as heat — budget that into the motor sizing and enclosure ventilation. The housing is black anodized aluminium, which sheds heat better than painted steel but is softer on shaft seal surfaces. The unit is lubricated for life, so no grease interval to schedule.
Torque ratings and service life — what drives the replacement clock
The continuous torque rating of 44 N.m at 100 rpm and 30 °C is the working limit for a 30000-hour service life. Push it to the 70 N.m maximum and you're in overload territory — the gearbox will survive short peaks, but sustained operation above 44 N.m accelerates wear and shortens life below the 30000-hour baseline. Axial and radial load limits are also tied to the 30000-hour life at 100 rpm: 450 N axial force and 340 N radial force (applied mid-shaft). At 10000-hour duty, those figures increase to 600 N axial and 500 N radial — useful for short-duration high-load cycles. The 20 arc-min maximum torsional backlash sets the positioning repeatability floor. For indexing or pick-and-place applications where cumulative error matters, this is the spec to check against the system's allowable lost motion.
Obsolete — sourcing through independent channels
Schneider Electric has marked the GBX0600321003F as obsolete. No official successor part number is listed, and no pin-compatible drop-in replacement exists in the current GBX catalog. The 60 mm frame size and 32:1 ratio are common enough that a parametric substitute from another manufacturer may fit the envelope, but the mounting flange, shaft keyway, and pilot diameter must be verified against the original. Available through independent surplus and broker channels. Quantities are lot-specific — confirmed at RFQ against the BOM line. No factory lead time applies; the part is sourced from existing inventory in the distribution network.