Is GBX1200320702D still being made?
A single source line on the spec sheet still lists as current, but the formal productStatus on the same record is Obsolete — the obsolete reading is the one a procurement line should act on when filling a BOM position.
What 32:1 actually buys you in this gearbox
The 32:1 reduction ratio is paired with a continuous output torque of 260 N.m and a maximum output torque of 416 N.m, so the gearbox is sized for drives that need meaningful torque multiplication without stepping up to a larger 120 mm-plus housing class. Maximum torsional backlash is listed at 12 arc.min, which puts the unit in the standard backlash band for a precision planetary stage rather than the low-backlash tier — fine for general motion and conveyor service, but a buyer targeting high-precision indexing should note this figure before specifying. Efficiency is rated at 94 %, meaning roughly 6 % of the input power is dissipated as heat through the gear stage; useful when calculating thermal budget at the gearbox housing during continuous duty. The straight-tooth construction (Gear box type Straight teeth) keeps the noise floor at 65 dB at 1 m under no-load, which is a useful baseline for enclosure acoustics in panel-room or machine-side installations.
Shaft loads and service-life envelope
Shaft output carries IP54 sealing, so the gearbox tolerates dust and light splash at the shaft exit but is not rated for washdown or high-pressure cleaning — keep that in mind for food-line or outdoor mounting. Maximum radial force Fr is 1500 N at 100 rpm over a 30000 h service life and rises to 2000 N if the duty is derated to 10000 h, with the load applied at mid-distance from the output shaft — the radial envelope scales with how long the gearbox is expected to run. Maximum axial force Fa follows the same service-life curve: 2100 N over 30000 h at 100 rpm, climbing to 2800 N over 10000 h, with the operating ambient capped at 30 °C for those figures. Moment of inertia is 1.3 g.cm² and torsional rigidity is 13 N.m/arcmin, which together describe how the gearbox reacts to fast acceleration steps on the driven shaft.
Mechanical envelope and where it mounts
The gearbox housing is black anodized aluminium with a 120 mm external diameter and a C 45 steel output shaft, and the unit is lubricated for life so no oil-change access has to be designed into the machine layout. Mounting position is rated for any position, which removes a constraint panel-builders often hit with oil-lubricated units, and the operating ambient window runs from -25 °C to 90 °C — a wider envelope than many servo-class gearheads at this OD.
Sourcing posture for an obsolete line
With the productStatus flagged Obsolete and no L-record successor on file, GBX1200320702D is sourced through independent distribution against a buyer RFQ — each quote is lot-specific, with quantities, condition, and traceability confirmed at the time of order.