Specification Brand : National BulletPoint1 : PREMIUM MATERIALS -- Precision manufactured using premium-grade steel for outstanding durability and performance BulletPoint2 : SMOOTH ROTATION -- Crowned raceways and rollers for even load distribution BulletPoint3 : OE-STYLE DESIGN -- Engineered to meet OE specifications BulletPoint4 : COMPREHENSIVE COVERAGE -- Industry-leading coverage for domestic and import applications BulletPoint5 : RIGOROUS TESTING -- Comprehensive testing throughout design and development processes by National engineers for quality you can count on BulletPoint6 : Premium materials and precise manufacturing ensures consistent reliability BulletPoint7 : Premium steel grades for durability and performance BulletPoint8 : Premium bearing design matches OEM specifications Color : One Color ExternallyAssignedProductIdentifier : 04099941165479 ExternallyAssignedProductIdentifier1 : 724956160693 ExternallyAssignedProductIdentifier2 : 0724956160693 ExternallyAssignedProductIdentifier3 : 00724956160693 IncludedComponents : Spherical Bearings GE35 ES C3 35 x 55 x 25 mm DIN ISO 12240-1 ItemName : National 559 Taper Bearing Cone ItemPackageDimensions_Height : 4.63 inches ItemPackageDimensions_Length : 4.63 inches ItemPackageDimensions_Width : 1.56 inches ItemPackageQuantity : 1 ItemTypeKeyword : tapered-roller-bearings Manufacturer : National Material : Steel ModelNumber : 559 NumberOfItems : 2 PartNumber : 559 ProductDescription : The spherical bearings are pre-assembled machine elements, which are manufactured according to DIN ISO 12-240-1. They act as radial, axial or oblique spherical plain bearings. The selection of the appropriate bearing design depends on the type of load that acts on the bearing. Unlike roller bearings, spherical bearings are plain bearings. The sliding contact is created between a spherical inner and outer ring, whereby the sliding pairing is determined depending on the specific load case.
Features and construction: - Inner and outer rings: Spherical bearings consist of an inner and an outer ring. The inner ring has a spherical, convex outer surface that fits into the concave inner surface of the outer ring. - Sliding pairing: The contact surfaces of the rings are designed to allow a sliding movement. The materials of the sliding pairing are designed for minimal friction and high wear resistance, often consisting of hardened steel, bronze or PTFE (polytetrafluoroethylene). - Self-lubricating features: some spherical plain bearings are self-lubricating, which means they have incorporated lubricants into their materials that reduce friction and simplify maintenance. - Maintenance-friendly: There are both maintenance-free and maintenance-free variants. Maintenance spherical plain bearings require regular lubrication, while maintenance-free variants provide longer life without additional lubrication.