We could manufacture the Triple-row Roller Slewing Bearings with internal and external teeth or without teeth with high quality and precision. * Material often used: 50Mn & 42CrMo* Forging Certificate: DNV Certificate* Heating treatment: By professional company* Packing: Standard exporting packing* Surface process: Anti-corrosion process with special tech. * Q / C: Advanced Inspection instruments* Size range: 100mm-6000mmIf you need the bearing, pls contact us with your detailed contacting way: Email adress, fax No. , Company name and contacting people. . . We will reply you with our Questionnaire on the Slewing Bearing, and after your confirmed we will quote you and make drawings for you.