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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPW33

The NN 3018 KTN9/SPW33 is a double-row cylindrical roller bearing with a 90mm bore and 140mm outer diameter, crafted from sturdy chrome steel. It manages combined loads up to 31050 lbf and runs smoothly at speeds up to 7000 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.

With a tapered bore for secure fitting, this model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for precision machinery or industrial applications where high radial loads are common.

Weighing 1.93kg, 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/SPW33
  • 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 1.93 kg
  • Cage Material PA66 cage, roller centred
  • Width Annular Lubrication Groove Outer Ring(B1) 5.5 mm
  • Diameter Lubrication Hole (outer Ring) (K) 3 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPW33 dimension drawing
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Features

Performance Features of NN 3018 KTN9/SPW33 Bearing

NN 3018 KTN9/SPW33 Bearing is built with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, ensuring reliable performance in high-demand applications.

The PA66 cage keeps the rollers centred, reducing friction and extending service life.
With a maximum speed of 7000 rpm, it balances durability and efficiency in precision tasks.

NN 3018 KTN9/SPW33 Bearing works well in temperatures from -30° to 110°C, making it versatile for various environments.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design ensures secure fitting, enhancing stability during operation.
This bearing is ideal for applications requiring high precision and long-lasting performance.

Application

Industrial Uses of NN 3018 KTN9/SPW33 Bearing
NN 3018 KTN9/SPW33 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.

In automation systems, NN 3018 KTN9/SPW33 Bearing supports robotic arms, providing smooth movement and precise positioning. Its chrome steel construction offers durability, even in continuous operation environments.

For heavy machinery, NN 3018 KTN9/SPW33 Bearing’s high dynamic load capacity makes it suitable for applications like presses and rolling mills. The open seal design allows for easy lubrication, extending its service life.

What Makes NN 3018 KTN9/SPW33 Bearing a Preferred Choice?
NN 3018 KTN9/SPW33 Bearing is ideal for wind turbines, where its combined load capacity handles the stresses of rotational and axial forces. The grease or oil lubrication options adapt to various operating conditions.

In aerospace applications, NN 3018 KTN9/SPW33 Bearing’s precision ensures reliable performance in critical components. The PA66 cage reduces friction, enhancing efficiency at high speeds.

Built for Heavy-Duty Use: NN 3018 KTN9/SPW33 Bearing
NN 3018 KTN9/SPW33 Bearing excels in conveyor systems, where its robust design withstands constant movement and heavy loads. The metric sizing ensures compatibility with a wide range of industrial equipment.

For printing machinery, NN 3018 KTN9/SPW33 Bearing’s smooth operation reduces vibration, improving print quality. The temperature range of -30° to 110°C makes it versatile for different environments.

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