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Double Row Super-Precision Cylindrical Roller Bearings NN 3008 KTN/SP

Double Row Super-Precision Cylindrical Roller Bearings NN 3008 KTN/SP

The NN 3008 KTN/SP is a double-row cylindrical roller bearing with a 40mm bore and 68mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 9652 lbf and spins smoothly at speeds up to 15000 RPM.

Its open design allows easy lubrication with grease or oil, while the PA66 cage ensures stable performance. The bearing operates well in temperatures from -30°C to 110°C.

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

Weighing just 0.28kg, it’s lightweight yet robust for its size. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3008 KTN/SP
  • Size 40 mm x 68 mm x 21 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 40 mm
  • Bore Dia Tolerance 0 to +0.012mm
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 21 mm
  • Width Tolerance -0.12mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 1 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 0.6 mm
  • Permissible Axial Displacement(max.) 1.5 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 9652 lbf
  • Static Radial Load 12600 lbf
  • Max Speed 15000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 0.28 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3008 KTN/SP dimension drawing
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Features

Performance Features of NN 3008 KTN/SP Bearing

NN 3008 KTN/SP Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 9652 lbf, ensuring reliable performance in precision applications.

The double-row design enhances stability, while the PA66 cage keeps rollers centred for smooth operation.
With a maximum speed of 15,000 rpm, it balances precision and durability.

NN 3008 KTN/SP Bearing operates efficiently in temperatures from -30° to 110°C, suitable for various environments.
Its open design allows easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design ensures secure fitting, while the precise tolerances enhance performance.
This makes NN 3008 KTN/SP Bearing a dependable choice for high-speed machinery.

Application

Industrial Uses of NN 3008 KTN/SP Bearing
NN 3008 KTN/SP Bearing is commonly used in machine tools, where its double-row design handles both radial and axial loads efficiently. The high-speed capability makes it suitable for spindle applications in CNC machines.

Where Is NN 3008 KTN/SP Bearing Used?
In automotive transmissions, NN 3008 KTN/SP Bearing ensures smooth operation under combined loads. Its precision construction also makes it a reliable choice for electric vehicle drivetrains.

Built for Heavy-Duty Use: NN 3008 KTN/SP Bearing
NN 3008 KTN/SP Bearing excels in industrial gearboxes, where its chrome steel rollers withstand high dynamic loads. The open design allows for easy lubrication, extending service life in demanding environments.

Medical vs Industrial: Where NN 3008 KTN/SP Bearing Excels
NN 3008 KTN/SP Bearing is ideal for medical imaging devices, offering quiet and precise rotation. In industrial settings, it supports heavy machinery like compressors and pumps with consistent performance.

Automation and Robotics: NN 3008 KTN/SP Bearing in Action
NN 3008 KTN/SP Bearing is a go-to choice for robotic arms, providing stability and accuracy in repetitive motions. Its grease lubrication option ensures low maintenance in automated production lines.

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