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Double Row Super-Precision Cylindrical Roller Bearings NN 3021 KTN9/UPVR522

Double Row Super-Precision Cylindrical Roller Bearings NN 3021 KTN9/UPVR522

The NN 3021 KTN9/UPVR522 is a double-row cylindrical roller bearing with a 105mm tapered bore and 160mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 42750 lbf and reaches speeds of 6000 RPM.

Its open design allows for easy lubrication with grease or oil, while the PA66 cage ensures smooth operation. The bearing performs reliably in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for precision applications like machine tools or industrial gearboxes where high radial loads are present.

Weighing 2.7kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3021 KTN9/UPVR522
  • Size 105 mm x 160 mm x 41 mm
  • Brand TFL
  • Interchangeable brand SKF
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • Bore Type Taper 1:12
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 105 mm
  • Bore Dia Tolerance 0 to +0.020mm
  • Outer Dia 160 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 41 mm
  • Width Tolerance -0.10mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 2 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
  • Permissible Axial Displacement(max.) 2 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 42750 lbf
  • Static Radial Load 68625 lbf
  • Max Speed 6000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 2.7 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3021 KTN9/UPVR522 dimension drawing
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Features

Performance Features of NN 3021 KTN9/UPVR522 Bearing

NN 3021 KTN9/UPVR522 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 42,750 lbf, ensuring reliable performance in demanding conditions.

The double-row construction of NN 3021 KTN9/UPVR522 Bearing provides stability and precision for high-speed applications.
With a maximum speed of 6,000 rpm, it balances durability and efficiency.

NN 3021 KTN9/UPVR522 Bearing’s PA66 cage keeps the rollers centred, reducing wear and extending service life.
The open design allows for easy lubrication with grease or oil, simplifying maintenance.

Designed for a temperature range of -30° to 110°C, NN 3021 KTN9/UPVR522 Bearing performs well in various environments.
Its tapered bore ensures secure mounting, enhancing operational reliability.

Application

Industrial Uses of NN 3021 KTN9/UPVR522 Bearing
NN 3021 KTN9/UPVR522 Bearing is commonly used in machine tools, where its double-row design handles both radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during high-speed operations.

What Makes NN 3021 KTN9/UPVR522 Bearing a Preferred Choice?
In automotive applications, NN 3021 KTN9/UPVR522 Bearing supports gearboxes and drivetrains, offering reliable performance under combined loads. Its chrome steel construction provides durability in demanding conditions.

Perfect Fit for Automation: NN 3021 KTN9/UPVR522 Bearing
For robotic arms and automated systems, NN 3021 KTN9/UPVR522 Bearing’s precision and low friction ensure smooth movement. The open design allows for easy lubrication, extending service life.

Medical vs Industrial: Where NN 3021 KTN9/UPVR522 Bearing Excels
In medical imaging devices, NN 3021 KTN9/UPVR522 Bearing’s high-speed capability and stability are crucial. Meanwhile, in industrial settings, it excels in heavy machinery due to its robust load capacity.

Light-Duty vs Heavy-Duty: Best Uses for NN 3021 KTN9/UPVR522 Bearing
For light-duty applications like printers, NN 3021 KTN9/UPVR522 Bearing ensures quiet operation. In heavy-duty scenarios like rolling mills, its high dynamic load rating stands out.

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