Port Crane Slewing Bearing 1. Product Description: Port crane slewing bearing. This extra-large slewing bearing is designed specifically to meet the demanding load requirements under extreme operating conditions. Its core features include exceptional size, ultra-high strength, and excellent stability, making it an ideal foundational component for key equipment such as heavy-duty port machinery. 2. Product Structure: Three-row roller slewing bearing 3. Size Range: Product dimensions range from 4238mm x 270mm. Special sizes are available for custom design. 4. Materials: Base material: 42CrMo, 50Mn special alloy steel Rolling elements: GCr15SiMn high-purity bearing steel Seal material: Imported nitrile rubber or fluororubber 5. Applications: Mainly used in various heavy-duty port machinery, such as port cranes, stackers and reclaimers, and container gantry cranes. https://www.hgbearings.com/slewing-bearing/port-crane-slewing-bearing