About Wkkz Bearing Co., Ltd. - Bearing Supplier in China

China bearing manufacturer Wkkz Bearing Co., Ltd. lists 18 distinct bearing items in its catalogue. The items include cylindrical roller bearings such as SL192318, SL192317, SL192319 and NU5212M, each classified under HS code 8482.50. Deep‑groove ball bearings like XLJ4 3/4, XLS5 1/2 and XLS6 are recorded with HS code 8482.10, while thrust ball bearing XW8 is also under 8482.10. All products specify high‑carbon chromium steel grades GCr15, 100Cr6 or AISI 52100 as the primary material. The catalogue covers both standard and specialized bearing dimensions for industrial and automotive applications.

The supplier’s catalogue groups bearings by type rather than by size, covering roller, deep‑groove ball and thrust variants. Material descriptions consistently reference chrome steel (GCr15) or equivalent SAE 52100, indicating compliance with common bearing steel specifications. The HS code distribution shows a predominance of 8482.10 for ball bearings and 8482.50 for cylindrical roller bearings, reflecting the international tariff classification for these components. No additional product categories beyond bearings are listed.

Product Range and Specialties of Wkkz Bearing Co., Ltd.

Wkkz Bearing Co., Ltd. offers cylindrical roller bearings (e.g., SL192318, NU1092M), deep‑groove ball bearings (e.g., XLJ4 3/4, XLS6) and a thrust ball bearing (XW8). All items are made from high‑carbon chromium steel grades such as GCr15, 100Cr6 or AISI 52100 and are classified under HS codes 8482.10 for ball bearings and 8482.50 for roller bearings. In the bearing industry, these steel grades are standard for achieving hardness levels of 58‑62 HRC and for meeting ISO 281 dynamic‑load requirements. Buyers typically evaluate bearings against ISO 15243 dimensional tolerances and ABEC precision grades, with load ratings (C and C0) expressed in kN. Standard bore sizes range from 10 mm to 200 mm, and sealing options include open, shielded and sealed configurations, which align with the product types listed in the catalogue.

Trade and Export Information - Wkkz Bearing Co., Ltd.

China is one of the world’s largest exporters of precision bearings, supplying automotive OEMs, heavy‑equipment manufacturers and general industrial users across Europe, North America and Southeast Asia. HS code 8482.10 (ball bearings) and 8482.50 (cylindrical roller bearings) are routinely subject to anti‑dumping duties and require accurate declaration for customs clearance. Importers commonly request ISO 9001 quality‑management certification, ISO 14001 environmental compliance and CE marking for bearings destined for the European market. Typical packaging consists of individual cardboard boxes with anti‑corrosion coating, packed onto wooden pallets; a 20‑foot container can hold several thousand units, while a 40‑foot container roughly doubles that volume. Common Incoterms used by Chinese bearing exporters are FOB Shanghai or CIF destination port, with freight forwarding handled by major carriers.

Sourcing from Wkkz Bearing Co., Ltd. - Buyer Guidance

When sourcing from Wkkz Bearing Co., Ltd., buyers should request material test reports confirming GCr15 composition, hardness values and chemical analysis. It is advisable to obtain ISO 281 life‑rating data, dimensional inspection certificates (ISO 15243) and any available ISO 9001 certificate to verify quality‑system compliance. Verify the exact bearing dimensions, dynamic and static load ratings, and sealing type before confirming order quantities. Request a sample unit to assess fit and performance, and confirm packaging details such as box count per pallet and container loading plan to avoid shipment surprises.

What bearing types does Wkkz Bearing Co., Ltd. offer?

The catalogue lists cylindrical roller bearings, deep‑groove ball bearings and a thrust ball bearing, identified by product codes such as SL192318, XLJ4 3/4 and XW8. All are classified under HS codes 8482.50 for roller bearings and 8482.10 for ball bearings.

Which material grades are used for the bearings?

All items specify high‑carbon chromium steel grades, primarily GCr15, which is equivalent to SAE 52100 or 100Cr6. These steels meet the typical hardness range of 58‑62 HRC for precision bearings.

What certifications should a buyer request?

Buyers should ask for an ISO 9001 quality‑management certificate, material test reports confirming GCr15 composition, and compliance documents such as ISO 281 bearing life ratings. Additional certifications like CE marking may be required for European markets.

What are typical packaging and container loads?

Bearings are usually packed in cardboard boxes with protective inserts; a 20‑foot container can accommodate several thousand units depending on size, while a 40‑foot container roughly doubles that capacity. Shipping terms commonly used are FOB Shanghai or CIF destination port.

What quality standards apply to these bearings?

Industry standards include ISO 15243 for bearing dimensions, ISO 281 for dynamic load rating and life, and ABEC 1‑9 ratings for precision ball bearings. The listed products meet the material and dimensional tolerances required by these standards.

What is a typical lead time and minimum order quantity?

Suppliers in China generally require a lead time of 2‑4 weeks after order confirmation for standard sizes, with a minimum order quantity ranging from 500 to 1 000 pieces per bearing type, depending on batch size.

How can a buyer verify the HS code classification?

The catalogue assigns HS code 8482.10 to ball bearings and 8482.50 (or 8482.40) to cylindrical roller bearings; buyers can cross‑check these codes with the World Customs Organization tariff schedule to ensure correct duty rates.

Are any additional documents needed for customs clearance?

In addition to the commercial invoice, buyers should request a packing list, certificate of origin and, where required, an inspection certificate such as CIQ. These documents, together with the correct HS codes, facilitate smooth customs processing.