Import Bearing Washer — Buy in wholesale FOB from Supplier in China

Changzhou Zhihua Bearing Co., Ltd. produces precision-stamped bearing washers from spring steel sheet, available in AS, WS, and LS configurations for thrust bearing assemblies. The material specification cites SK5/SK7 grade spring steel, with typical sheet thickness ranging from 0.8mm to 1.0mm depending on washer size and load rating. These components function as critical spacing and load-distribution elements within rotating machinery, sitting between bearing races to maintain axial clearance and reduce metallic contact wear. The supplier operates from Gesi Industrial Concentration Area in Jiangsu province, a region with established metalworking infrastructure.

The AS type serves as a shaft washer, the WS type as a housing washer, and the LS type as a plain thrust washer, each matching specific bearing series geometries. SK5 and SK7 are Japanese-standard spring steel grades with carbon content typically 0.60-0.70% and 0.50-0.60% respectively, offering good fatigue resistance and consistent spring properties after stamping and heat treatment. Precision stamping from hardened and tempered strip ensures flatness within tight tolerances, critical for uniform load distribution across the bearing contact surface. Surface finish and edge condition affect both assembly fit and operational longevity in high-cycle applications. Buyers should verify whether washers are supplied in the hardened condition or require downstream heat treatment, as this affects integration into finished bearing assemblies.

These washers find application across automotive transmissions, industrial gearboxes, electric motors, and general rotating equipment where thrust bearings manage axial loads. MRO distributors and bearing specialists represent the primary buyer segments, with demand driven by replacement cycles in established machinery fleets. The supplier indicates capability for custom dimensions, though buyers must confirm minimum order quantities, tooling charges, and dimensional validation protocols directly. Standard packaging and shipping terms are not specified in available data, and should be clarified alongside lead times and any material certification requirements.

Changzhou Zhihua Bearing Co., Ltd. is located in Gesi Industrial Concentration Area, Changzhou 213163, Jiangsu Province, China. The supplier holds a harbor trust tier and imported supplier tier classification, with response rate and average response hours both recorded at zero in available data. This profile indicates a catalogued presence rather than active engagement verification. The company specialises in bearing washers and related precision-stamped components for industrial bearing applications.

The listing does not disclose establishment year, factory size, production capacity, workforce, revenue figures, or specific client references. No third-party certifications, quality management systems, or export licence details are stated. Buyers should request direct verification of ISO 9001 or IATF 16949 certification status, production audit reports, and sample qualification history before committing to volume orders. The supplier's proximity to Changzhou's established bearing manufacturing cluster offers potential supply chain integration advantages, though this should not substitute for direct due diligence on manufacturing capability and quality control protocols.