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

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

The NN 3018 KTN9/SP is a double-row cylindrical roller bearing with a 90mm bore and 140mm outer diameter, crafted from robust chrome steel. It handles combined loads up to 31050 lbf and reaches speeds of 7000 RPM, making it suitable for precision applications.

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

With a tapered bore for secure fitting, this model is interchangeable with SKF bearings, offering a practical replacement option. Perfect for machine tools or industrial gearboxes where high precision and durability are key.

Weighing 1.95kg, it strikes a balance between strength and manageable size. Compliant with RoHS and REACH standards, it meets modern safety and environmental requirements.

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Product Parameters

  • Part Number NN 3018 KTN9/SP
  • 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 Chrome Steel
  • Dynamic Radial Load 31050 lbf
  • Static Radial Load 48600 lbf
  • Max Speed 7000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 1.95 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SP dimension drawing
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Features

Performance Features of NN 3018 KTN9/SP Bearing

NN 3018 KTN9/SP Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, ensuring reliable performance in precision applications.

The double-row design of NN 3018 KTN9/SP Bearing provides excellent stability and load distribution.
With a maximum speed of 7000 rpm, it delivers both durability and efficiency.

NN 3018 KTN9/SP Bearing operates smoothly in temperatures ranging from -30° to 110°C.
The PA66 cage keeps rollers centred, reducing friction and extending service life.

NN 3018 KTN9/SP Bearing’s open design allows for easy lubrication with grease or oil.
Its tapered bore ensures secure fitting, making installation straightforward.

Application

Industrial Uses of NN 3018 KTN9/SP Bearing
NN 3018 KTN9/SP 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.

Where Is NN 3018 KTN9/SP Bearing Used?
In automotive applications, NN 3018 KTN9/SP Bearing supports gearboxes and drivetrains, providing stability under heavy loads. Its chrome steel construction offers durability, making it suitable for long-term use.

Optimized for Performance: NN 3018 KTN9/SP Bearing
For automation systems, NN 3018 KTN9/SP Bearing ensures smooth operation in robotic arms and precision equipment. The open seal design allows for easy lubrication, maintaining performance over time.

Medical vs Industrial: Where NN 3018 KTN9/SP Bearing Excels
In medical imaging devices, NN 3018 KTN9/SP Bearing delivers reliable performance due to its high precision. Industrial applications benefit from its ability to withstand combined loads in harsh environments.

Practical Applications of NN 3018 KTN9/SP Bearing
NN 3018 KTN9/SP Bearing is ideal for conveyor systems, where its high dynamic load capacity ensures consistent operation. The grease or oil lubrication options provide flexibility for different working conditions.

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