Import Ball Bearings — Buy in Bulk from Supplier in China

Ball bearings from Xiemen Running World Components Co., Ltd are precision rolling-element bearings manufactured at their facility in Xiamen, Fujian Province. The bearings are designed to reduce rotational friction and support radial and axial loads in industrial machinery. The supplier operates from 2#605 Wuhan Building in the Siming Area, with production oriented toward export markets. Standard configurations include deep groove designs suitable for electric motors, gearboxes, and general industrial equipment. The chrome steel construction (SAE 52100 / GCr15, typical for this grade of bearing) provides hardness and wear resistance for continuous-duty applications. Internal clearance classes follow ISO standards, with C3 clearance typical for general machinery to accommodate thermal expansion during operation.

The raceways are ground and lapped to precision tolerances that control runout and vibration characteristics. Shield and seal options (ZZ, 2RS, open) are standard industry variants, though the specific configurations offered by this supplier should be confirmed directly. Lubrication is typically factory-applied with mineral oil or lithium-based grease, with operating temperature ranges from -30 degrees C to +120 degrees C being standard for this bearing class. Surface finishes on the rolling contact surfaces are controlled to reduce fatigue and extend service life under cyclic loading. The steel cage (stamped steel or brass, typical) maintains ball spacing and prevents contact between rolling elements during rotation. Hardness after heat treatment reaches 58-62 HRC on the rings and balls, which is standard for through-hardened chrome steel bearings.

Primary buyers include importers serving automotive component manufacturers, industrial equipment distributors, and machinery maintenance operations. The bearings are used in electric motors, pumps, conveyor systems, and agricultural equipment where reliable rotational support is critical. For this listing, the response rate and average response time are both recorded as zero, so direct communication to confirm stock availability, exact dimensional ranges, and current production capacity is essential before placing orders. The supplier's 'harbor' trust tier and 'imported' supplier tier indicate a profile that requires standard due diligence on verification documentation. Packaging is typically individual plastic or paper wrapping within corrugated cartons, with wooden pallets for bulk shipment, though exact packaging specifications should be requested from the supplier.

Xiemen Running World Components Co., Ltd is located at 2#605 Wuhan Building, Siming Area, Xiamen, Fujian Province, 361000, China. The supplier holds an 'imported' tier classification and a 'harbor' trust tier on the platform, which are baseline indicators that do not substitute for independent verification. The response rate is recorded as 0.00 percent with zero average response hours, meaning buyers should expect to initiate contact and allow time for the supplier to reply rather than relying on rapid quotation turnaround. No verified certifications, production capacity figures, employee count, or years in operation are stated in the available profile data.

The supplier's address places it in Xiamen, a coastal city with established port infrastructure for export shipping. Buyers should request the supplier's business registration, quality management documentation, and any bearing-specific test reports before committing to orders. The listing does not specify whether the company manufactures bearings directly or trades finished components sourced from other facilities. Due diligence should include clarification of the supply chain, inspection protocols, and whether the supplier can provide material certificates or dimensional inspection reports for specific batches.