Import 35$ Xls4 3/4 Ball Bearing,Wkkz Bearing — Buy in wholesale FOB from Supplier in China

The XLS4 3/4 from Wkkz Bearing Co., Ltd. is a deep groove ball bearing with a 0.75 inch bore, an outer diameter of 4.75 inches, and a width of 0.875 inches, giving it the compact axial profile suited to high-speed shaft applications. Manufactured from GCr15 chrome steel, the bearing is designed to carry combined radial and axial loads in industrial machinery, automotive auxiliaries, and power transmission trains. Wkkz Bearing lists this SKU from its Dalian, Liaoning facility, though the '35$' prefix in the product title appears to be a pricing or catalogue marker rather than a dimensional designation.

GCr15, the Chinese equivalent of AISI 52100, provides a through-hardened martensitic structure with typical hardness of 60-65 HRC after heat treatment, offering excellent fatigue life and wear resistance in rolling contact. The deep groove geometry permits higher speed operation than angular contact designs of equivalent size, with typical limiting speeds dependent on lubrication regime and cage material. Standard manufacturing tolerances for this bearing class typically follow ABEC-1 or ABEC-3 precision grades, though buyers should confirm the exact grade with the supplier. The open construction implies that shields or seals are not fitted as standard, so contamination protection must be addressed at the application design stage.

Buyers are typically maintenance teams in heavy equipment, OEM drivetrain engineers, and industrial distributors serving the replacement market. The inch-dimensioned bore suggests legacy US machinery or specialised equipment where metric conversion is impractical. Before ordering, confirm with Wkkz Bearing whether the XLS4 designation corresponds to a specific internal clearance group, what cage material is used (pressed steel, brass, or polymer), and whether the '35$' marker affects specification or is purely administrative. Lubrication, packaging, and certification details are absent and must be requested.

Wkkz Bearing Co., Ltd. is located in Section 1 of the Zhudong District on North Gongji Street in Dalian, Liaoning Province, China, a region with established metallurgical and heavy engineering supply chains. The supplier holds a Harbor trust tier. Like several comparable listings, Wkkz Bearing currently shows a 0.00% response rate and zero recorded response hours, which prospective buyers should factor into their communication planning and due diligence timeline.

The listing does not disclose year of establishment, factory floor space, annual output, employee count, or specific quality certifications held. No ISO, SGS, or other third-party audit credentials are confirmed in the source material. The 'WKKZ' branding appears to be the supplier's own mark. Buyers should request a factory profile, quality management system documentation, and reference customers before assuming production scale or technical capability. The address places the supplier in Dalian's industrial zone, which supports bearing manufacturing but does not, by itself, confirm specialisation in precision components.