Wheel Hub Assembly for Audi A4: Kevlar Composite
This wheel hub assembly for the Audi A4 is specified around kevlar composite, which decides how it behaves in service far more than the part name does. We build to a written specification — base material, dimensions, finish and packing — and hold that specification on file so every reorder reproduces the approved piece.
The usual reason a programme changes supplier is not unit price. It is reorders that did not match the approved sample, or a supplier who changed material without saying so. Both are specification problems, and both are preventable.
Specification
| Product | Wheel Hub Assembly |
|---|---|
| Vehicle application | Audi A4 |
| Material / finish | Kevlar Composite |
| Typical use | Mountain Roads |
| MOQ | 500 pieces per specification |
| Sampling | 14 working days, 5 days per revision |
| Bulk lead time | 20-30 days after approval |
| Compliance | RoHS |
| Packing | 100 pieces per inner box, 1000 per carton |
Material options
- Stainless Steel — used when the finish has to hold a coating
- Sintered Metal — selected when the part is exposed to weather and road salt
- Natural Rubber — the cost-effective default for volume programmes
- Carbon Fibre Composite — preferred when weight matters more than rigidity
- EPDM Rubber — chosen where wear resistance comes first
Processes available
- robot welding
- rubber vulcanisation
- cold forging
- surface grinding
- injection moulding
- shot blasting
Fitment notes
Confirm the fitment against the VIN or the frame number before ordering; two model years often share a name and not a part.
Where it is used
The specification above is the one most often ordered for mountain roads. Related applications include roadside assistance, farm use, rental fleets, passenger transport, wet weather riding.
Quality and packing
- In-line inspection with AQL 2.5 sampling on every lot.
- Dimensional report issued against the approved drawing.
- Carton marking and barcode to your specification.
- Golden sample retained at the factory as the reorder reference.
Questions buyers ask
What happens if a lot fails inspection?
The lot is re-inspected against the golden sample, and replacement pieces ship on the next available booking at our cost.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the RoHS-compliant build instead of a fresh interpretation.
How long does sampling take?
Samples leave the factory in 14 working days, and each revision round adds about 5 days once you have seen the first piece.
What testing is included?
Standard lots ship with dimensional and hardness reports. RoHS documentation is issued with the shipment when your market requires it.
Share a sample or a drawing and we will quote against a written specification, not against a photograph.
