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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 TN9/SP

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 TN9/SP

The NN 3018 TN9/SP 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 open design allows 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.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for precision applications like machine tools or industrial gearboxes where high radial loads are common.

Weighing 1.95kg, 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 TN9/SP
  • Size 90 mm x 140 mm x 37 mm
  • Brand TFL
  • Interchangeable brand SKF
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • Bore Type Cylindrical
  • For Load Direction Combined
  • Construction Double Row
  • Seal Type Open
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.010mm to 0
  • 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
  • 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 TN9/SP dimension drawing
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Features

Performance Features of NN 3018 TN9/SP Bearing

NN 3018 TN9/SP 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 heavy-duty applications.

The PA66 cage keeps the rollers centred, ensuring smooth operation and reduced wear.
With a maximum speed of 7000 rpm, it delivers reliable performance in demanding conditions.

NN 3018 TN9/SP Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with either grease or oil, enhancing longevity.

Application

Industrial Uses of NN 3018 TN9/SP Bearing
NN 3018 TN9/SP Bearing is widely used in machine tools, where its double-row design handles both radial and axial loads efficiently. The high-speed capability makes it suitable for spindle applications in milling and grinding machines.

Where Is NN 3018 TN9/SP Bearing Used?
In automotive manufacturing, NN 3018 TN9/SP Bearing supports gearbox systems, ensuring smooth power transmission under heavy loads. Its precision engineering reduces vibration, enhancing overall vehicle performance.

Built for Heavy-Duty Use: NN 3018 TN9/SP Bearing
NN 3018 TN9/SP Bearing excels in industrial fans and compressors, where its chrome steel construction withstands harsh operating conditions. The open design allows for easy lubrication, extending service life.

Automotive vs Aerospace: Applications of NN 3018 TN9/SP Bearing
In automotive systems, NN 3018 TN9/SP Bearing is ideal for high-torque applications like differentials. For aerospace, its precision and reliability make it a choice for auxiliary power units and landing gear mechanisms.

Perfect Fit for Automation: NN 3018 TN9/SP Bearing
NN 3018 TN9/SP Bearing is commonly found in robotic arms, where its low friction and high-speed performance ensure accurate movement. The PA66 cage material reduces weight without compromising strength.

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