01 · Catalog
Browse product lines
Explore front and rear bearings, sealed cartridges and service kits.
Open catalog
China procurement desk
National Bearings
National Bearings
Wheel bearing sourcing
An independent China procurement service for aftermarket buyers. Compare supplier offers using one brief for fitment, kit contents and destination.
02 · Quote
Submit a sourcing brief
Send an OE number, the axle position and your quantity by line.
Start an RFQ- Application
- Vehicle & axle
- Reference
- OE & revision
- Shipment
- Qty & destination
Request scope
Three ways to specify a bearing
Sealed cartridges
Specify bore, outside diameter and width. Record the encoder side if fitted.
Bore · OD · widthBrowse bearings →
Tapered bearing sets
List the cone and cup references together. Include any separate seal reference.
Cup · cone · sealReview the range →
Service kits
Ask for a parts list that shows whether the retaining ring, axle nut and seals are included.
Pack contentsOpen the catalog →
Fitment decision
Integrated hub or serviceable bearing?
| Check | Integrated hub unit | Serviceable bearing |
|---|---|---|
| Fitment | Match the hub flange, pilot and ABS encoder or sensor interface. | Match bore, outer diameter, width and seal lip orientation. |
| Trade-off | Replaces the assembled unit. The quote needs to cover the complete flange and hardware scope. | Can retain a serviceable hub where the vehicle allows it. Confirm tooling and the vehicle procedure for bearing preload or endplay. |
| Evidence | Ask for a flange drawing and an encoder specification tied to the quoted revision. | Ask for a dimensioned drawing and a kit contents list. A shared OE cross reference alone leaves these points open. |
Procurement sequence
01
02
03
From part list to shipment file
Define
Record the application, part revision, axle position, quantity and target market for each line.
Compare
Line up supplier responses by fitment, included hardware, MOQ, packaging and Incoterm with its named place.
Verify
Agree who checks the sample, what goes in the inspection brief and which shipment documents the buyer needs.
Buyer programs
Where fitment data gets used
Distributors
Cross-reference files and carton labels.
Fleet buyers
Axle groups and service schedules.
Repair networks
Kit contents and service scope.
Online catalogs
Fitment exclusions and revision control.
Evidence to collect
Supplier drawing
Part number, revision and critical dimensions.
Sample checklist
Agreed checks, method and acceptance owner.
Shipment record
Carton count, lot labels and document owner.
Sourcing questions
Before sending your brief
Fitment
Is an OE cross reference enough?
Use it to start. If a front wheel bearing varies within a model year, add the VIN or production range, axle position and encoder configuration before approving a match.
What if a bearing looks identical in photos?
Compare the drawing and check which side carries the encoder. Record any seal or sensor difference against the exact part number.
Commercial terms
How are MOQ and lead time established?
Ask each supplier to quote the MOQ by SKU and the lead-time trigger, such as approved sample or confirmed order. Capture both in the comparison.
Can I request a third-party inspection?
List the measurements, quantities to check and acceptance criteria. We coordinate the brief with the provider you approve.
Send the first part number
Start with the vehicle, OE reference, quantity and destination. Flag any measurements you still need to confirm.
Open Quick RFQ