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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/HC5SP

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/HC5SP

The NN 3018 KTN9/HC5SP is a double-row cylindrical roller bearing with a 90mm bore and 140mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 31050 lbf and operates smoothly at speeds up to 7000 RPM.

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

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

Weighing 1.66kg, 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 3018 KTN9/HC5SP
  • Size 90 mm x 140 mm x 37 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 90 mm
  • Bore Dia Tolerance 0 to +0.020mm
  • Outer Dia 140 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 37 mm
  • Width Tolerance -0.20mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 1.5 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1 mm
  • Permissible Axial Displacement(max.) 2 mm
  • Ring Material Chrome Steel
  • Roller Material Si3N4
  • Dynamic Radial Load 31050 lbf
  • Max Speed 7000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 1.66 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/HC5SP dimension drawing
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Features

Performance Features of NN 3018 KTN9/HC5SP Bearing

NN 3018 KTN9/HC5SP Bearing is built with chrome steel rings and Si3N4 rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, making it suitable for demanding industrial applications.

The double-row design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 7000 rpm, it balances performance and durability in high-speed environments.

NN 3018 KTN9/HC5SP Bearing operates efficiently within a temperature range of -30° to 110°C.
Its open design allows for flexible lubrication options, either grease or oil, to suit different operational needs.

The PA66 cage keeps the rollers centred, reducing friction and wear.
This design ensures long service life and minimal maintenance requirements.

Application

Industrial Uses of NN 3018 KTN9/HC5SP Bearing
NN 3018 KTN9/HC5SP Bearing is commonly used in machine tools, where its double-row design handles combined radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during high-speed operations.

In automation systems, NN 3018 KTN9/HC5SP Bearing supports robotic arms, providing smooth movement and precision. Its ceramic rollers (Si3N4) offer excellent wear resistance, even in demanding environments.

For wind turbines, NN 3018 KTN9/HC5SP Bearing’s high dynamic load capacity makes it suitable for rotor shafts. The open seal design allows for easy lubrication, extending service life in harsh conditions.

What Makes NN 3018 KTN9/HC5SP Bearing a Preferred Choice?
NN 3018 KTN9/HC5SP Bearing is ideal for gearboxes, where its high-speed capability (7000 rpm) ensures reliable performance. The chrome steel rings and PA66 cage provide a balance of strength and lightweight efficiency.

In printing machinery, NN 3018 KTN9/HC5SP Bearing’s precision reduces vibration, improving print quality. The metric sizing makes it interchangeable with major brands like SKF, simplifying replacements.

Medical vs Industrial: Where NN 3018 KTN9/HC5SP Bearing Excels
NN 3018 KTN9/HC5SP Bearing is used in MRI machines, where its low-noise operation is critical. The temperature range (-30° to 110°C) ensures stability in various clinical settings.

For heavy industrial presses, NN 3018 KTN9/HC5SP Bearing’s high static load capacity prevents deformation. The grease or oil lubrication options adapt to different operational needs.

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