Wheel Hub Assembly for BMW 3 Series: Sintered Metal
This wheel hub assembly for the BMW 3 Series is specified around sintered metal, 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 inconsistent hardness between lots, or packing that arrived crushed at the port. Both are specification problems, and both are preventable.

Specification
| Product | Wheel Hub Assembly |
|---|---|
| Vehicle application | BMW 3 Series |
| Material / finish | Sintered Metal |
| Typical use | Airport Ground Fleets |
| MOQ | 500 pieces per specification |
| Sampling | 7 working days, 5 days per revision |
| Bulk lead time | 25-55 days after approval |
| Compliance | CCC |
| Packing | 100 pieces per inner box, 500 per carton |
Material options
- Ceramic Composite — preferred when weight matters more than rigidity
- Aluminium Alloy — chosen where wear resistance comes first
- Zinc Plated Steel — used when the finish has to hold a coating
- Polypropylene — used when the finish has to hold a coating
- Nylon 66 — used when the finish has to hold a coating

Processes available
- precision stamping
- shot blasting
- anodising
- die casting
- heat treatment
- laser cutting
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 airport ground fleets. Related applications include coastal delivery, long-distance touring, weekend riding, daily commuting, food delivery.
Quality and packing
- In-line inspection with AQL 1.5 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 is the minimum order quantity?
The standard MOQ is 500 pieces per specification. Mixed sizes inside one shipment are accepted once the total reaches that figure.
Can you match an existing sample?
Send a sample and we will reverse-engineer the specification, then produce a counter sample for approval before any bulk starts.
Can the specification be held on file?
Yes. Once approved, the specification is recorded against your part number so a reorder reproduces the CCC-compliant build instead of a fresh interpretation.
Do you handle mixed containers?
Yes. Most programmes consolidate several part numbers into one container to keep freight sensible at 500 pieces per line.
Send the part number, the annual volume and the target market, and we will come back with a specification and a sampling plan.







