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

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

The NN 3018 KTN9/UP 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 reaches speeds of 7000 RPM.

Its tapered bore design ensures a secure fit, while the open construction allows for easy lubrication with grease or oil. The PA66 cage keeps rollers centred for smooth operation.

This bearing suits applications with high radial loads, such as machine tools or industrial gearboxes. It performs reliably in temperatures from -30°C to 110°C.

Weighing 1.95kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards, it’s interchangeable with SKF bearings for easy replacement.

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Product Parameters

  • Part Number NN 3018 KTN9/UP
  • 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 1.95 kg
  • Cage Material PA66 cage, roller centred
Double Row Super-Precision Cylindrical Roller Bearings NN 3018 KTN9/UP dimension drawing
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Features

Performance Features of NN 3018 KTN9/UP Bearing

NN 3018 KTN9/UP 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 demanding conditions.

The double-row cylindrical design enhances load distribution, reducing stress on individual rollers.
PA66 cage keeps the rollers centred, promoting smooth operation and extended service life.

NN 3018 KTN9/UP Bearing operates efficiently at speeds up to 7000 rpm, balancing speed and durability.
It functions in temperatures from -30° to 110°C, making it suitable for varied environments.

With a taper bore design, NN 3018 KTN9/UP Bearing ensures secure fitting and alignment.
Its open construction allows for easy lubrication with grease or oil, reducing maintenance needs.

Application

Key Fields for NN 3018 KTN9/UP Bearing
NN 3018 KTN9/UP Bearing is widely used in industrial machinery, especially in high-precision applications like CNC lathes and milling machines. Its double-row design offers excellent radial load capacity, making it suitable for heavy-duty operations.

In the automotive sector, NN 3018 KTN9/UP Bearing is often found in gearboxes and drivetrains, where its tapered bore ensures secure fitting. The high-speed capability of up to 7000 rpm makes it a reliable choice for performance vehicles.

For automation systems, NN 3018 KTN9/UP Bearing supports robotic arms and conveyor belts, providing smooth motion under combined loads. The open seal design allows for easy lubrication, extending its service life in continuous use.

Medical imaging devices benefit from NN 3018 KTN9/UP Bearing’s precision and stability, ensuring accurate positioning in scanners. The chrome steel construction also resists wear in high-frequency applications.

In consumer electronics, NN 3018 KTN9/UP Bearing can be found in high-end printers and industrial fans, where its durability and low maintenance are valued. The PA66 cage material reduces friction, enhancing efficiency.

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