About Changhzou Zhh Bearing Co. Ltd. - Bearing Supplier in China

China is the origin of Changhzou Zhh Bearing Co. Ltd., which currently lists five active bearing products in its catalogue. The offerings include a Bearing for Bevelling Machine (HS 8482.10) made of chrome steel GCr15 with an NBR rubber seal, a Combined Track Roller Bearing (HS 8482.80) using GCr15/AISI 52100 steel with case‑hardened raceways, a Forklift Mast Guide Combined Track Roller Bearing (HS 8482.50) of GCr15/AISI 52100, a Standard Combined Track Roller Bearing (HS 8482.20) of high‑grade chromium steel GCr15/AISI 52100, and a Combined Forklift Roller Bearing (HS 8482.80) built from chrome steel GCr15 and carbon steel. All five items fall under HS chapter 84, heading 8482 which covers ball and roller bearings. The catalogue specifies the principal material grades - GCr15 and AISI 52100 - which are standard high‑carbon chromium steels used for rolling‑element bearings worldwide. The inclusion of NBR rubber seals indicates suitability for applications requiring moisture resistance. The product list reflects typical bearing classifications such as track roller and mast guide bearings used in material handling and machining equipment.

Product Range and Specialties of Changhzou Zhh Bearing Co. Ltd.

The supplier’s catalogue comprises track roller bearings, mast guide bearings and a specialised bearing for bevelling machines. Track roller bearings are commonly supplied in sizes ranging from 20 mm to 300 mm bore diameter and are graded by ISO 281 dynamic load rating (C‑rating) and ABEC tolerance class. Mast guide bearings for forklift masts usually require a C3 internal clearance and are often delivered with pre‑lubricated seals. Chrome steel GCr15 and AISI 52100 correspond to the international steel grade 100Cr6, which typically provides a hardness of 58‑65 HRC after heat treatment. Bearings with rubber NBR seals are standard for moisture‑prone environments, while case‑hardened raceways improve wear resistance. Buyers often request specifications such as radial load capacity (kN), axial load capacity, and limiting speed (rpm) for each bearing model.

Trade and Export Information - Changhzou Zhh Bearing Co. Ltd.

Chinese bearing manufacturers export under HS 8482 to regions including Southeast Asia, Europe, and North America, where automotive, material‑handling and industrial machinery sectors are major importers. Standard export documentation includes a commercial invoice, packing list, and a certificate of origin, often accompanied by ISO 9001 quality‑management certification, which is routinely required by overseas buyers of precision bearings. Typical regulatory requirements involve compliance with IEC 61260 for noise, and CE marking for products destined for the European Economic Area. Bearings are generally packed in wooden crates or steel containers with moisture‑absorbing packets to maintain dimensional stability during sea transport. Common Incoterms used are FOB Shenzhen or CIF Shanghai, reflecting China’s coastal logistics infrastructure.

Sourcing from Changhzou Zhh Bearing Co. Ltd. - Buyer Guidance

When sourcing bearings from this supplier, buyers should request material test reports confirming the chemical composition and hardness of GCr15 or AISI 52100 steel, as well as a bearing load‑rating certificate in accordance with ISO 281. Confirmation of the NBR seal grade (e.g., ASTM D2000) and any heat‑treatment records will help verify durability. It is advisable to obtain a 3‑month sample batch to verify dimensional tolerances, clearance class (C3 or C4), and surface finish. Buyers should also check that the supplier can provide CE‑type testing reports or ISO 9001 certification copies before finalising a contract.

What bearing types does Changhzou Zhh Bearing Co. Ltd. offer?

The catalogue lists five bearing types: a Bearing for Bevelling Machine (HS 8482.10), Combined Track Roller Bearings (HS 8482.80), a Forklift Mast Guide Combined Track Roller Bearing (HS 8482.50), a Standard Combined Track Roller Bearing (HS 8482.20), and a Combined Forklift Roller Bearing (HS 8482.80). All are made from chrome steel grades GCr15 or AISI 52100, with some models incorporating NBR rubber seals.

Which material standards are used for the bearings?

The bearings are produced from GCr15 and AISI 52100, which correspond to the international 100Cr6 steel standard. This steel typically achieves a post‑heat‑treatment hardness of 58‑65 HRC and meets the requirements of ISO 9001 for bearing manufacturing.

What certifications should a buyer request?

Buyers should ask for a current ISO 9001 quality‑management certificate, material test reports showing compliance with GCr15/AISI 52100 specifications, and, for European shipments, a CE conformity declaration. Additional documentation such as an NBR seal grade certificate (ASTM D2000) is also common.

What are the typical packaging and shipping methods?

Bearings are usually packed in wooden crates or steel containers with internal cushioning and moisture‑absorbing packets. Export shipments from China commonly use FOB Shenzhen or CIF Shanghai Incoterms, with sea freight in 20‑ft or 40‑ft containers.

What minimum order quantities (MOQ) are typical for these bearings?

For standard track roller bearings, suppliers often set an MOQ of 500 pieces per size, while specialised bearings such as the Bevelling Machine bearing may have an MOQ of 100 pieces. Exact MOQs should be confirmed with the supplier for each product code.

What lead times can buyers expect?

Production lead times for standard roller bearings are typically 15‑25 working days after order confirmation, whereas bearings requiring custom seals or specific heat‑treatment may need 30‑45 working days. Lead time estimates depend on order volume and current factory workload.

How can a buyer obtain samples?

Buyers can request a 3‑month sample batch of the desired bearing model, which will be shipped in a protective crate and include a test report for dimensions, hardness and load rating. Sample requests are usually processed after receipt of a signed non‑disclosure agreement and a nominal shipping fee.