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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/UPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/UPW33

The NN 3018 KTN9/UPW33 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 spins smoothly at speeds up to 7000 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 precision applications like machine tools or industrial gearboxes where high radial and axial loads are present.

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/UPW33
  • 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 -0.008mm to 0
  • Width 37 mm
  • Width Tolerance -0.10mm 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/UPW33 dimension drawing
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Features

Performance Features of NN 3018 KTN9/UPW33 Bearing

NN 3018 KTN9/UPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, making it suitable for demanding industrial applications.

The PA66 cage ensures proper roller alignment, reducing friction and enhancing longevity.
With a maximum speed of 7000 rpm, it delivers reliable performance in high-speed operations.

NN 3018 KTN9/UPW33 Bearing operates efficiently in temperatures from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, ensuring smooth functionality.

The double-row construction provides stability and precision in heavy-duty applications.
Its tapered bore design simplifies installation and improves alignment accuracy.

Application

Industrial Uses of NN 3018 KTN9/UPW33 Bearing
NN 3018 KTN9/UPW33 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 automotive applications, NN 3018 KTN9/UPW33 Bearing supports gearboxes and drivetrains, offering reliable performance under combined loads. Its chrome steel construction provides durability, even in demanding conditions.

For automation systems, NN 3018 KTN9/UPW33 Bearing is ideal for robotic arms, where precision and smooth movement are essential. The open seal design allows for easy lubrication, extending service life.

In medical imaging equipment, NN 3018 KTN9/UPW33 Bearing’s high-speed capability ensures accurate positioning of components. The PA66 cage material reduces friction, enhancing operational efficiency.

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