9-Point Audit Checklist for China Bearing Factories

A new bearing supplier can ship you 50,000 wheel bearings worth $80,000 that fail at 30% rate after one year — and the factory has shut down their email address by then. Or you can find a real factory that ships consistent OEM-grade product for the next ten years. The difference between the two outcomes is a 30-minute audit before placing the first bulk order. This is the checklist we recommend distributors use on any prospective Chinese bearing supplier, including ourselves.

1. Verify the Legal Entity Exists and Matches

The factory's legal name should match what's on every Commercial Invoice, Bill of Lading, and quality certificate. For China, you can verify any company by:

• Looking up the Unified Social Credit Code on the National Enterprise Credit Information Publicity System (gsxt.gov.cn)
• Confirming the registered business scope includes "manufacture of bearings" or "automotive parts"
• Cross-checking the registered address with the address on quotes and shipping documents

Linqing CHKZ Bearing Co., Ltd. is registered in Linqing, Shandong Province (China's bearing-cluster region). If a "factory" claims to manufacture wheel hub bearings but the registered address is a residential apartment in Shenzhen, that's a trading company.

2. Demand Verifiable Certificate Numbers

Every quality claim should have a verifiable certificate, not just a logo on the website. The two that matter for automotive bearings:

• quality system documentation — generic quality management. Useful but not specific to automotive.
• quality system documentation — automotive-specific quality standard. The actual standard your customers' OEMs care about.

Both certificates have a certificate number, an issuing body (TÜV, SGS, BV, DNV-GL, BSI), and an expiration date. Ask the factory for the certificate PDF. Then look up the certificate number directly on the issuing body's online register. If the issuing body's register doesn't recognize the number, the certificate is fake.

3. Request Third-Party Inspection Reports

SGS, BV, TÜV, and Intertek all do bearing inspections in China. Ask the factory for a recent third-party report on a batch of bearings similar to what you intend to order. The report covers:

• Dimensional measurement (with tolerances and the actual measured values)
• Hardness testing on rings and rollers
• Radial play measurement
• Grease specification verification
• Visual / surface defect inspection

If the factory can produce a recent report (within 6 months) on the request, they're real. If they say "we don't have one but can get one in a month," that's neutral — many smaller factories don't have ongoing third-party inspection. If they refuse to discuss it, walk away.

4. Order a Sample Before Bulk

Always test before you buy in bulk. A sample order of 5–10 pieces costs $50–$200 in unit price plus $80–$150 in DHL/FedEx freight to most destinations. The sample order gives you:

• Real product to physically inspect (dimensions, weight, grease quality, packaging)
• A test fit on the actual vehicle — verifies fitment before you stock 500 units
• A workshop test (rotation noise, radial play check)
• A sense of the factory's responsiveness and packaging quality

Reputable factories charge for samples but will credit the sample fee against your first bulk order ($1,000+). Factories that ship "free samples" to anyone are usually trading companies trying to win volume — be skeptical.

5. Run a Reverse Image Search on Their Website Photos

Open Google Images, drag the factory's product photos onto the search bar. If their "factory tour" photos appear on five other Chinese factory websites, they're stock images — meaning the factory is either a trading company or has minimal real production. Real factories shoot their own photos, even if amateur.

Also reverse-search the factory's "team photo" and "production line" images. We've seen the same generic photos used by 30+ supposedly distinct factories — they're all running the same template.

6. Verify the Factory Address with Satellite View

Take the factory's claimed address (e.g. "Linqing Industrial Park, Shandong"), open Google Earth or Baidu Maps satellite view. Real bearing factories visible on satellite show:

• documented industrial buildings sized for production
• Multiple loading docks and shipping containers in the yard
• Visible warehouse logistics

If the address resolves to a 100 m² shop in a small commercial street, that's a sales office for a trading company. Trading companies aren't necessarily bad, but you should know what you're buying through.

7. Ask for a Factory Tour Video

If a physical visit isn't practical (typical for 90% of distributors), ask the factory to record a 5-minute walkthrough video of:

• The forging line
• The grinding line
• Heat treatment furnaces
• Final inspection station
• Packaging area

The video should be unedited and have ambient factory noise. A narrated marketing video isn't enough — anyone can dub a stock video. Ask the salesperson to walk through the factory with their phone and narrate as they go. Reluctance to do this is a strong red flag.

8. Verify the Bank Account Matches

The bank account on the proforma invoice must match the legal entity name. If the proforma invoice is issued by "Linqing CHKZ Bearing Co., Ltd." but the bank account beneficiary is "John Wang" or "Shenzhen Trading Ltd.," you're being scammed — that's an account hijacking attack.

Standard practice for legitimate Chinese B2B exporters: the bank account is in the company's full registered name, the bank is a major Chinese bank (ICBC, Bank of China, China Merchants Bank, China Construction Bank), and the SWIFT code is consistent with the bank's official code.

9. Schedule an On-Site Visit (Even if You Don't Go Yourself)

For orders > $50,000 USD, schedule a pre-shipment inspection by SGS, BV, TÜV, or Intertek. Cost: $300–$600 USD. The inspector visits the factory, checks the goods are produced and packed, and signs off the shipment. This catches:

• Wrong SKU mix
• Damaged packaging
• Missing or incorrect labeling
• Substitution of grades

If you're investing in a long-term supplier relationship, plan to visit yourself within the first year. Most reputable Chinese factories arrange airport pickup, hotel, and translator at no charge. CHKZ Bearings welcomes scheduled customer audits with 10 days notice — Qingdao airport pickup arranged.

The 80/20 Rule for Distributor Audits

If you're short on time, the three highest-value checks (in order):

1. Sample order — eliminates 80% of risk by physical inspection
2. Reverse image search of website — eliminates trading companies in 2 minutes
3. Verify legal entity + bank account match — eliminates fraud

Do these three before any first order. Add the rest as your relationship matures and order sizes grow.

How CHKZ Bearings Handles Each of These

• Legal entity: Linqing CHKZ Bearing Co., Ltd., Linqing, Shandong, China. Registration verifiable via gsxt.gov.cn.
• Certificates: quality system documentation. Quality system documentation available on request.
• Sample orders: 1–3 pcs available. Sample fee credited on bulk orders > $1,000.
• Factory walkthrough: Live video tour can be arranged via WhatsApp / WeChat / Zoom — typically same day.
• Bank account: Bank of China, beneficiary "Linqing CHKZ Bearing Co., Ltd." — matches legal entity exactly.
• On-site visit: Welcome with 10 days notice. Qingdao airport pickup. SGS / BV / TÜV inspections welcome.

Run this checklist on us. We'll pass — and you'll learn how to evaluate every other supplier you ever consider. Send us your audit questions and we'll respond within 24 business hours with documentation.

What to Do When a Supplier Fails the Checklist

Walk away. There are 200+ legitimate bearing factories in China. The one that fails 4 of these 9 checks is not worth the savings, no matter how cheap the quote. Distributors who push through on a marginal supplier always pay for it within 12 months — through warranty returns, lost customer trust, or in the worst cases, fraud losses.

The bearing aftermarket business is built on consistency. Your customers will replace 1,000 wheel bearings over the next decade. The factory you choose today determines how many of those go bad in the first 30,000 km. Choose carefully.