NSK NN3020 Cylindrical roller bearings---The part number NN3020 is a type of NSK double row cylindrical roller bearings,this design of double row precision bearings is used for machine tools.NSK double row cylindrical roller bearings consist of solid outer rings without ribs, solid inner rings with three ribs and cylindrical roller and cage assemblies with solid brass cages. For optimum setting of the radial internal clearance, the inner ring has a tapered bore with a bore taper 1:12. The bearings are separable, therefore they are easier to fit and dismantle. Both bearing rings can be given a tight fit by this process.

Following is the main technical data of NN3020 for reference:


Dimension: 100mm x 150mm x 37mm

Mass: 2.28 kgs

Basic dynamic load rating, radial: 157000N

Basic static load rating, radial: 265000N

Fatigue limit load, radial: 38000N

Limiting speed for grease lubrication: 4000 rpm

Limiting speed for minimal quantity oil lubrication: 4800 rpm

Matched FAG bearings: NN3020-AS-K-M-SP

Matched SKF bearings: NN3020TN9/SP

Matched KOYO bearings: NN3020

Matched NACHI bearings: NN3020


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