China Manufacturing D1787/267m External Teeth Four-Point Contact Ball Slewing Bearing for Excavator

China Manufacturing D1787/267m External Teeth Four-Point Contact Ball Slewing Bearing for Excavator. High-Strength Alloy Materials: Manufactured from 42CrMo, 50Mn, or 5CrMnMo for superior durability and fatigue life. Hardened Precision Raceways: Controlled quenching and grinding ensure HRC 55-62 hardness for extended service life. Versatile Application Range: Ideal for excavators, cranes, wind turbines, ships, and other heavy rotating equipment. OEM and ODM Customization: Accepts custom designs, logos, and packaging based on client requirements. Superior Impact Resistance: Optimized metallurgy increases resistance to shock loads in construction and mining. Robust Sealing System: Sealed on both sides for excellent wear performance in harsh marine and outdoor conditions. ISO Quality Certified: Passed ISO9001:2016 certification with 100% visual and function inspection.