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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/HC5SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/HC5SPW33

The NN 3018 KTN9/HC5SPW33 is a double-row cylindrical roller bearing with a 90mm bore and 140mm outer diameter, crafted from high-quality 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.

With a taper bore design (1:12), it offers precise alignment and easy installation. The chamfered edges (1.5mm outer, 1mm inner) reduce stress during mounting.

Ideal for machine tools or gearboxes where precision and durability are key. Compliant with RoHS and REACH standards, it’s a reliable choice for industrial applications. Weighing 1.66kg, it balances strength and manageability.

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Product Parameters

  • Part Number NN 3018 KTN9/HC5SPW33
  • 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
  • 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/HC5SPW33 dimension drawing
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Features

Performance Features of NN 3018 KTN9/HC5SPW33 Bearing

NN 3018 KTN9/HC5SPW33 Bearing is designed with chrome steel rings and Si3N4 rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 31050 lbf, ensuring reliable performance in demanding conditions.

The double-row construction of NN 3018 KTN9/HC5SPW33 Bearing provides enhanced stability and load distribution.
With a maximum speed of 7000 rpm, it balances durability and efficiency in high-speed applications.

NN 3018 KTN9/HC5SPW33 Bearing operates smoothly in temperatures ranging from -30° to 110°C.
Its PA66 cage keeps the rollers centred, reducing wear and extending service life.

The open design of NN 3018 KTN9/HC5SPW33 Bearing allows for easy lubrication with grease or oil.
This ensures consistent performance and reduces maintenance requirements.

Application

Industrial Uses of NN 3018 KTN9/HC5SPW33 Bearing
NN 3018 KTN9/HC5SPW33 Bearing is commonly used in machine tools, where its double-row design handles high radial loads with precision. The tapered bore ensures a secure fit, reducing slippage during operation.

In automotive applications, NN 3018 KTN9/HC5SPW33 Bearing supports gearboxes and drivetrains, offering reliable performance under combined loads. Its chrome steel construction provides durability in demanding conditions.

For robotics, NN 3018 KTN9/HC5SPW33 Bearing’s high-speed capability makes it ideal for precision arms and automated systems. The open seal design allows for easy lubrication, extending service life.

In wind turbines, NN 3018 KTN9/HC5SPW33 Bearing’s ability to handle axial displacement ensures smooth operation in variable conditions. The Si3N4 rollers enhance wear resistance, reducing maintenance needs.

For printing machinery, NN 3018 KTN9/HC5SPW33 Bearing’s consistent performance under high speeds ensures accurate paper handling. The PA66 cage minimises friction, improving efficiency.

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