NN 3021 KTN9/SP

The NN 3021 KTN9/SP is a high-performance double row cylindrical roller bearing engineered specifically for applications requiring extreme precision and high radial stiffness, such as machine tool spindles. Its design features a tapered bore (indicated by the "K" suffix), which allows for accurate internal clearance adjustment during mounting. The use of a glass fiber reinforced PA66 cage (TN9) ensures a lightweight yet durable internal structure, capable of handling high speeds with reduced friction and heat generation.

Manufactured to SP (Super-precision) tolerances, this bearing offers exceptional dimensional and running accuracy. Because it is a non-locating bearing, it accommodates axial displacement within the housing, making it an ideal choice for maintaining shaft alignment under varying thermal conditions. The combination of its double-row roller configuration and optimized internal geometry provides the high load-carrying capacity and rigidity essential for precision machining environments.

We provide sea and air freight services for large bearings, and international express shipping services for small bearings.

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