How to Source Wheel Bearings & Hub Assemblies from China

Short answer: before you ask a Chinese factory for a wheel bearing price, pin down three things: the OEM number and exact vehicle position, the bearing generation (a Gen 1 press-in bearing, or a Gen 2 / Gen 3 hub unit with flanges), and the rolling element type (ball or tapered roller). The first two decide whether the part fits. The third decides how it is classified at US customs — and tapered roller bearings from China are subject to a US antidumping order whose China-wide cash deposit rate is 92.84%. Get that wrong and the landed cost of an order can be several times what you budgeted.

The wheel bearing and wheel hub categories on PartzealHQ list OEM numbers with vehicle fitment and the Chinese factories that list them on public B2B marketplaces. This guide is the checklist to use before you contact any of them.

What is the difference between a Gen 1, Gen 2 and Gen 3 wheel bearing?

Bearing makers describe wheel bearings by "generation". NTN's product pages summarize them this way:

• Gen 1 — a double-row bearing (two rows of rolling elements in one unit) that "require no setting (no pre-loading or alignment)". In the replacement market it is the press-in bearing that fits into the steering knuckle or hub carrier, so fitting it needs a press.
• Gen 2 — the inner or outer ring adds mounting features — "clamps, flanges or mounting holes for easy mounting onto the chassis".
• Gen 2.5 — NTN describes it as an evolution of Gen 2 designed for inner-ring rotation with a hub spindle installed.
• Gen 3 — the unit "incorporate[s] two mounting functions: attachment to the chassis and the fixing to the disc brake and the rim of the wheel by the flanges incorporated into the inner and outer rings", with a factory-set preload. This is the bolt-on "hub assembly" most repair shops buy.

For sourcing, the generation matters because the same vehicle position can be served by a bare Gen 1 bearing in one market and a Gen 3 hub assembly in another, and because some hub units carry the ABS tone ring, a magnetic encoder or an integrated sensor while others do not. Ask the factory which generation its part is and how the ABS signal is generated, and match it to the OEM part you are replacing.

Why does "ball or tapered roller" matter so much?

Because the US tariff schedule treats them differently, and because only one of them is under an antidumping order. In the USITC HTS search:

• Ball bearings — 8482.10.50 ("other" ball bearings), general duty 9%.
• Tapered roller bearings — 8482.20.00, general duty 5.8%.
• Double flanged wheel hub units incorporating ball bearings — 8708.99.58, general duty 2.5%.
• Double flanged wheel hub units not incorporating ball bearings — reported under 8708.99.81.15.

The US Department of Commerce's antidumping order on tapered roller bearings and parts thereof, finished and unfinished, from China covers TRBs and related housings and units "whether or not for automotive use". The HTS lines the order lists include 8482.20.00, several 8483 lines, and automotive lines including 8708.99.81.15. In its final results published on 21 September 2026, Commerce set the cash deposit rate for Chinese exporters that have not been found entitled to a separate rate at the China-wide rate of 92.84%, and for non-Chinese exporters without their own rate, the rate of the Chinese exporter that supplied them.

Practical consequences:

1. Ask in writing whether the bearing or hub unit uses balls or tapered rollers, and get a cross-section drawing.
2. If tapered rollers are involved, talk to your customs broker before you place the order — about AD scope, whether the exporter has a separate rate, and the deposit you will need to post. The Federal Register notice states that the order's written description of scope is dispositive, not the HTS numbers.
3. Do not route through a third country to avoid the order. Commerce's cash deposit instructions already reach non-Chinese exporters supplied by Chinese producers.

Section 301 and other China-specific duties apply on top of the general rate and change frequently; see US import duties on Chinese auto parts and HS codes for auto parts.

What should be in the specification?

Send each factory the same written specification, so the quotes are comparable:

• OEM number and vehicle position — front or rear, left or right where it differs, driven or non-driven axle, and the exact model-year range. Confirm fitment against a VIN where possible (VIN decoding for parts sourcing).
• Generation and rolling element type — as above.
• Key dimensions — bore, outside diameter and width for a Gen 1 bearing; flange bolt pattern, pilot diameter, spline count and stud count for a hub unit. Ask the factory to confirm each one against the OEM part, not against its own catalog.
• ABS — tone ring, magnetic encoder or integrated sensor; connector type and cable length if a sensor is fitted.
• Seals and grease — ask what seal design and grease the factory uses; sealed-for-life units cannot be re-greased later.
• Included hardware — hub nut, bolts, studs, snap rings.
• Packaging and marking — country-of-origin marking on the part and the box, your brand or neutral packaging.

How should I check samples?

Order paid samples of the exact part number you intend to buy and test them against an OEM part, not against the supplier's photos:

1. Dimensional check against the OEM part or drawing: bore, OD, width, flange pattern, spline fit on the actual axle shaft.
2. ABS signal check on the vehicle — no warning lights, consistent wheel speed readings.
3. Rotation feel and noise by hand and in a road test after fitting.
4. Marking — origin marking, part number, and a batch or date code you can trace later.

The general sample routine in the sample order checklist applies to bearings as well. For the factory's quality system, see IATF 16949 vs ISO 9001.

What should I ask a bearing factory?

• Do you make the bearing rings and rolling elements yourselves, or assemble bought-in components? Which parts come from which supplier?
• Is the part ball or tapered roller, and what HS code do you export it under?
• Does your company have its own antidumping rate in the US tapered roller bearing proceeding, or would entries be at the China-wide rate?
• What does your certificate of quality management cover — is this product line inside the scope?
• What batch traceability do you keep, and for how long?

Sources

• NTN Americas, Wheel Hubs — generation descriptions (Gen 1, Gen 2, Gen 2.5, Gen 3), ntnamericas.com, retrieved November 2026.
• USITC Harmonized Tariff Schedule search for 8482.10, 8482.20 and 8708.99 — hts.usitc.gov, retrieved November 2026.
• US Department of Commerce, Tapered Roller Bearings and Parts Thereof, Finished and Unfinished, From the People's Republic of China: Final Results of Antidumping Duty Administrative Review, Federal Register, 21 September 2026 (doc. 2026-19262) — federalregister.gov.
• Same proceeding, Preliminary Results, Federal Register, 15 May 2026 (doc. 2026-09756), appendix "Scope of the Order" — federalregister.gov.

PartzealHQ has not audited the factories listed in these categories or tested their parts; see the methodology page. This guide is general information, not customs or legal advice.