Specification Brand : DINGGUANGHE-CUP BulletPoint1 : Product description BulletPoint2 : SF-1 oil-free lubrication bearing is the rolled sliding bearing based on the matrix of steel plate, with the porous bronze powder sintered in the middle while the mixture of PTFE and lead rolled in the surface. BulletPoint3 : It is with small friction coefficient, wear resistance, good corrosion resistance and oil-free lubrication. BulletPoint4 : The application of such product can reduce the cost, reduce the mechanical volume, avoid the shaft engagement, and lower the noise. BulletPoint5 : Size: 8x22x7mm ExternallyAssignedProductIdentifier : 8306045930510 ItemName : DINGGUANGHE-CUP Flanged Bearings SF-1 Oilless Bushing Bearing SF1-6030 SF1-6035 SF1-7030 (1Pc) SF1 Self Lubricating Composite Bearings Industrial Products (Diameter : SF1 6030) ItemPackageQuantity : 1 ItemTypeKeyword : flanged-sleeve-bearings Manufacturer : DINGGUANGHE-US Material : Metal NumberOfItems : 1 PartNumber : DINGGUANGHE-US ProductDescription : Premium Flanged Ball Bearing. SF-1F oil-free lubrication bearing Metallographic analysis and material structure 1. Mixture of PTFE and lead 0.01-0.03mm 2. Porous bronze powder 0.2-0.3mm 3. Steel backing 0.7-2.3mm 4. Electroplated coating: thickness of tin coating 0.005mm, or that of copper layer 0.008mm