NN3020 Double Row Cylindrical Roller Bearing 100*150*37mm SUNBEARINGProduct SpecificationBore diameter:100 mmAttainable speed for grease lubrication5600r/minOutside diameter:150 mmAttainable speed for oil-air lubrication6300r/minOverall width:37 mmReference grease quantity11.9cm³Rows of RollersDoubleMass2.1 kg (approx.)Outer ring type:splitBore TypeCylindrical BoreInternal clearance:CN(Standard)Basic dynamic load rating151kNClosure type:OpenBasic static load rating250kNRing Material:Chrome Steeldamin.108mmOperating Temperature Range-40 to 250 ºF-40 to 120 ºCDamin.139mmBearing NumberNN3020dn135.3mmNN3020 Bearing Short DescriptionNN3020 is a double row cylindrical roller bearing. The outer ring of the NN type cylindrical roller bearing has no ribs, and the inner ring has ribs on both sides of the inner ring. And there is a middle rib in the middle. Can allow the shaft relative to the bearing seat to produce axial displacement in two directions.NN3020 Cylindrical Roller Bearing FeaturesHigh carrying capacityDue to its second row of rollers, double row cylindrical roller bearings are suitable for larger radial loads.Low friction (roller end face / rib contact area)The open rib design, as well as the roller end design and surface finish, promote lubricating oil film, thereby reducing friction and bringing a higher basic load rating.Long-lastingThe logarithmic curve profile reduces the edge stress at the roller/raceway contact and reduces the sensitivity to misalignment and shaft deflection.Improve operational reliabilityThe surface treatment of the contact surface between the roller and the raceway facilitates the formation of a hydrodynamic lubricant film.Separable and interchangeableThe separate components of double row cylindrical roller bearings are interchangeable. This is convenient for installation, disassembly, and maintenance inspection.High-speed capabilityThe cage design is suitable for high speed, rapid acceleration, and highest load.NN3020 Bearing ApplicationGear transmission systemFlying shear equipmentRolling millGeneral industry