Forged Flange Hubs
Forged steel flange hubs with a raised pilot boss, produced closed-die and finish-machined to suit the mating shaft.
Forged dowel pins, cross pins and shaft components, finish-turned with controlled diameter and concentricity.
| Forging weight | 0.5 – 25 kg per part, per die set |
|---|---|
| Tolerance | ±1.5 mm as-forged; finished to ±0.05 mm after machining |
| Heat treatment | Quench and temper, normalising or annealing — to specification |

Pins and dowels look simple but they locate assemblies, so their diameter and concentricity have to be controlled. Forging gives them the strength to carry the shear load and the internal quality to resist breaking under assembly load. They are finish-turned and, where the drawing calls for it, ground.
The ranges below are what this shop typically holds. Anything tighter than the baseline is possible — send the drawing and we will confirm it against your specific tolerances rather than quote from a table.
| Forging weight | 0.5 – 25 kg per part, per die set |
|---|---|
| Tolerance | ±1.5 mm as-forged; finished to ±0.05 mm after machining |
| Heat treatment | Quench and temper, normalising or annealing — to specification |
| Material certification | Mill test certificate available on request |
| Forging ratio | Up to 4:1, per die set |
| Pin diameter | Ø8 – Ø120 mm |
| Diameter tolerance | h7 / h9, or as specified |
| Hardness | Case-hardened or through-hardened on request |
If this is not quite your part, these are made on the same equipment with the same inspection.
Forged steel flange hubs with a raised pilot boss, produced closed-die and finish-machined to suit the mating shaft.
Forged ring flanges with a full-length sealing face, machined flat and parallel for a reliable gasket line.
Forged flanges with a dense bolt-hole circle, machined and faced for high-pressure bolted connections.
Send the drawing and we will quote it against your material, your tolerance and your quantity. One business day, in writing, with a lead time you can plan around.