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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPW33VR522

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/SPW33VR522

The NN 3018 KTN9/SPW33VR522 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 well in temperatures ranging from -30°C to 110°C.

With a tapered bore design (1:12), it offers precise alignment and easy installation. Ideal for high-precision applications like machine tools or industrial gearboxes where reliability is key.

Weighing 1.93kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s a dependable choice for replacements, especially as it’s interchangeable with SKF bearings.

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Product Parameters

  • Part Number NN 3018 KTN9/SPW33VR522
  • 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/SPW33VR522 dimension drawing
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Features

Performance Features of NN 3018 KTN9/SPW33VR522 Bearing

NN 3018 KTN9/SPW33VR522 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 operational smoothness.
With a maximum speed of 7000 rpm, it delivers reliable performance in high-speed environments.

NN 3018 KTN9/SPW33VR522 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, ensuring long service life.

The tapered bore design simplifies installation and improves alignment accuracy.
This feature makes NN 3018 KTN9/SPW33VR522 Bearing a practical choice for precision machinery.

Application

Industrial Uses of NN 3018 KTN9/SPW33VR522 Bearing
NN 3018 KTN9/SPW33VR522 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/SPW33VR522 Bearing supports gearboxes and drivetrains, offering reliable performance under heavy loads. Its chrome steel construction provides durability, even in demanding conditions.

For automation systems, NN 3018 KTN9/SPW33VR522 Bearing is ideal for robotic arms and precision machinery, thanks to its low friction and high-speed capabilities. The open design allows for easy lubrication, extending service life.

Medical imaging devices benefit from NN 3018 KTN9/SPW33VR522 Bearing’s smooth operation and precision. The PA66 cage reduces vibration, ensuring quiet and consistent performance in sensitive environments.

In heavy industrial equipment, NN 3018 KTN9/SPW33VR522 Bearing excels in conveyor systems and presses, where its high load capacity and stability are crucial. The grease or oil lubrication options make it adaptable to various operating conditions.

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