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Double Row Super-Precision Cylindrical Roller Bearings NN 3018 TN9/SPC3W33

Double Row Super-Precision Cylindrical Roller Bearings NN 3018 TN9/SPC3W33

The NN 3018 TN9/SPC3W33 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 for 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 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 TN9/SPC3W33
  • 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 1.93 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 TN9/SPC3W33 dimension drawing
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Features

Performance Features of NN 3018 TN9/SPC3W33 Bearing

NN 3018 TN9/SPC3W33 Bearing is designed with double-row cylindrical rollers, providing high radial load capacity up to 31050 lbf.
Its chrome steel construction ensures durability and resistance to wear in demanding applications.

The open design allows for easy lubrication with grease or oil, maintaining smooth operation.
With a maximum speed of 7000 rpm, it balances performance and reliability.

NN 3018 TN9/SPC3W33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its PA66 cage keeps the rollers centred, reducing friction and extending service life.

The annular lubrication groove in the outer ring ensures consistent lubrication.
This design feature helps maintain optimal performance even under heavy loads.

Application

Industrial Uses of NN 3018 TN9/SPC3W33 Bearing
NN 3018 TN9/SPC3W33 Bearing is commonly used in machine tools, where its double-row design handles combined loads with precision. The open seal type allows for easy lubrication, making it suitable for high-speed operations.

In automotive applications, NN 3018 TN9/SPC3W33 Bearing supports gearboxes and drivetrains, ensuring smooth performance under heavy radial loads. Its chrome steel construction offers durability in demanding conditions.

For automation systems, NN 3018 TN9/SPC3W33 Bearing is a reliable choice for robotic arms and CNC machines. The PA66 cage provides stability, while the grease lubrication option reduces maintenance needs.

Where Is NN 3018 TN9/SPC3W33 Bearing Used?
NN 3018 TN9/SPC3W33 Bearing excels in industrial fans and compressors, where its high dynamic load capacity ensures long service life. The metric sizing makes it compatible with a wide range of equipment.

In medical imaging devices, NN 3018 TN9/SPC3W33 Bearing’s precision and low noise operation are ideal for sensitive environments. The temperature range of -30° to 110°C ensures reliability in various settings.

Built for Heavy-Duty Use: NN 3018 TN9/SPC3W33 Bearing
NN 3018 TN9/SPC3W33 Bearing is perfect for rolling mills and heavy machinery, where its robust design handles extreme loads. The oil lubrication option enhances performance in high-temperature applications.

For 3D printers, NN 3018 TN9/SPC3W33 Bearing provides smooth motion control, thanks to its cylindrical roller design. The lightweight PA66 cage reduces friction, improving overall efficiency.

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