Import Double-Row Ball Spherical Type Slewing Bearing — Buy in Bulk from Supplier in China

The Double-row ball spherical type slewing bearing from Xuzhou Fenghe Slewing Bearing Co., Ltd. is engineered to handle combined axial, radial, and moment loads in rotating machinery. It features a double-row ball arrangement with internal raceways designed for high load distribution and rotational accuracy. The bearing is manufactured with through-hardened steel and undergoes six stages of heat treatment to enhance fatigue resistance and dimensional stability under heavy operational stress.

The inner and outer rings are typically made from 50Mn or equivalent alloy steel, with surface hardness ranging from 58 to 62 HRC. The balls are chrome steel, precision-ground to ABEC-3 tolerances, and separated by a standard nylon or phenolic cage. Corrosion resistance is achieved through a zinc-nickel plating or phosphate conversion coating, typical for industrial slewing bearings operating in dusty or humid environments. These bearings are not sealed but are often supplied with grease fittings for re-lubrication during maintenance.

These bearings are commonly used in construction cranes, wind turbine pitch systems, mining excavators, and port loading arms where sustained rotation under variable loads is required. Buyers include OEMs in heavy machinery, maintenance contractors in infrastructure projects, and industrial distributors in Southeast Asia and the Middle East. Trade terms are typically FOB Xuzhou or CIF port of destination, with minimum order quantities starting at one unit for sample evaluation and 10 units for regular shipment. Packaging is in wooden crates with rust preventive oil and desiccant.

Xuzhou Fenghe Slewing Bearing Co., Ltd. is a manufacturer located at 9 Longhai Road, Tongshan Economic Development Zone, Xuzhou, Jiangsu, China. The company specializes in the production of slewing bearings for industrial and heavy machinery applications. Its facility includes CNC machining, heat treatment lines, and assembly stations for slewing rings. The supplier is classified as imported and harbor-trusted, indicating verified export compliance and logistics readiness, though no third-party certifications are listed in the profile.

The supplier does not claim ISO, CE, or other certifications in its listing. It does not state annual production volume, employee count, or export history. It responds to inquiries but has no recorded response rate or average reply time. The listing confirms manufacturing capability but provides no client names, project references, or test reports. Buyers should request documentation directly for quality assurance.