+86 15806631151 [email protected]
TFL BEARINGS
REQUEST A QUOTE
Double Row Super-Precision Cylindrical Roller Bearings NN 3021 KTN9/SPVR521

Double Row Super-Precision Cylindrical Roller Bearings NN 3021 KTN9/SPVR521

The NN 3021 KTN9/SPVR521 is a double-row cylindrical roller bearing with a 105mm bore and 160mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 42750 lbf and operates smoothly at speeds reaching 6000 RPM.

Its open design allows for easy lubrication with grease or oil, while the PA66 cage ensures durability and centred roller alignment. 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 common.

Weighing 2.7kg, it offers a robust yet manageable solution for demanding environments. Compliant with RoHS and REACH standards for safe and eco-friendly use.

Get A Free Quote
    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number NN 3021 KTN9/SPVR521
  • 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 -0.013mm to 0
  • Width 41 mm
  • Width Tolerance -0.20mm 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/SPVR521 dimension drawing
Download DWG Download PDF

Features

Performance Features of NN 3021 KTN9/SPVR521 Bearing

NN 3021 KTN9/SPVR521 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 42,750 lbf, making it suitable for demanding industrial applications.

The double-row cylindrical design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 6,000 rpm, it balances performance and durability in high-speed environments.

NN 3021 KTN9/SPVR521 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
The PA66 cage keeps rollers centred, reducing friction and extending service life.

Its open design allows for easy lubrication with grease or oil, minimising maintenance needs.
The tapered bore ensures secure fitting, enhancing reliability in precision machinery.

Application

Industrial Uses of NN 3021 KTN9/SPVR521 Bearing
NN 3021 KTN9/SPVR521 Bearing is commonly used in heavy-duty 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.

In automotive applications, NN 3021 KTN9/SPVR521 Bearing supports gearbox systems, providing smooth performance under combined loads. Its chrome steel construction offers durability, making it suitable for long-term use in demanding conditions.

For automation systems, NN 3021 KTN9/SPVR521 Bearing is ideal for robotic arms, where precision and reliability are key. The open seal design allows for easy lubrication, ensuring consistent performance in continuous operations.

What Makes NN 3021 KTN9/SPVR521 Bearing a Preferred Choice?
NN 3021 KTN9/SPVR521 Bearing stands out in wind turbine applications, where its high dynamic load capacity ensures reliable performance. The PA66 cage material reduces friction, enhancing efficiency in high-speed rotations.

In medical imaging devices, NN 3021 KTN9/SPVR521 Bearing’s precision engineering ensures smooth and quiet operation. The grease or oil lubrication options provide flexibility for different operational requirements.

Built for Heavy-Duty Use: NN 3021 KTN9/SPVR521 Bearing
NN 3021 KTN9/SPVR521 Bearing excels in steel rolling mills, where its robust construction withstands extreme loads. The 6000 rpm max speed capability makes it suitable for high-performance industrial machinery.

For printing presses, NN 3021 KTN9/SPVR521 Bearing’s combined load handling ensures consistent paper feed. The metric sizing and interchangeable brands like SKF make it a versatile choice for global equipment.

Light-Duty vs Heavy-Duty: Best Uses for NN 3021 KTN9/SPVR521 Bearing
In light-duty applications like packaging machines, NN 3021 KTN9/SPVR521 Bearing offers reliable performance with minimal maintenance. The chrome steel rollers provide long-lasting wear resistance.

For heavy-duty scenarios like mining equipment, NN 3021 KTN9/SPVR521 Bearing’s high static load capacity ensures durability. The temperature range of -30° to 110°C makes it adaptable to various environments.

Q&A

SEND INQUIRY