
Premium Slewing Bearings for Excavators and Construction Equipment. 30+ Years Manufacturing Experience: Largest manufacturer in China specializing in slewing rings for over thirty years. Extensive Product Range: Diameter from 100mm to 5000mm with over 3000 types including single-row and cross-roller. Comprehensive Quality Certifications: Certified with ISO9001, ISO14001, OHSAS18001, and GJB9001B-2009 standards. Advanced Testing Capabilities: Equipped with 40+ instruments including 3D measuring machines and spectrometers. Full Process Quality Control: Complete control from raw material chemical composition to final product precision. Global Market Presence: Exporting to US, Russia, Europe, Japan, and South Asia since 2004. Versatile Application Scope: Used in construction, wind power, medical CT, and harbor machinery. Flexible Lead Time: Off-season delivery within 15 workdays; peak season within one month.