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Double Row Super-Precision Cylindrical Roller Bearings NN 3044 K/SPC3W33

Double Row Super-Precision Cylindrical Roller Bearings NN 3044 K/SPC3W33

The NN 3044 K/SPC3W33 is a double-row cylindrical roller bearing with a 220mm bore and 340mm outer diameter, built from tough chrome steel. It handles combined loads up to 182025 lbf and runs smoothly at speeds up to 3000 RPM.

Its open design allows easy lubrication with grease or oil, while the double-row construction provides extra stability. The bearing operates well in temperatures from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for heavy-duty applications like industrial gearboxes or large machinery where precision and durability are key.

Weighing 28.2kg, it’s a robust option for demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3044 K/SPC3W33
  • Size 220 mm x 340 mm x 90 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 220 mm
  • Bore Dia Tolerance 0 to +0.030mm
  • Outer Dia 340 mm
  • Outer Dia Tolerance -0.020mm to 0
  • Width 90 mm
  • Width Tolerance -0.30mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 3 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
  • Permissible Axial Displacement(max.) 2 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 182025 lbf
  • Static Radial Load 328500 lbf
  • Max Speed 3000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 28.2 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 15 mm
  • Diameter Lubrication Hole (outer Ring) (K) 7.5 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3044 K/SPC3W33 dimension drawing
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Features

Performance Features of NN 3044 K/SPC3W33 Bearing

NN 3044 K/SPC3W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 182025 lbf, making it suitable for heavy-duty applications.

The double-row cylindrical design ensures stability and precision in high-speed operations.
With a maximum speed of 3000 rpm, it delivers reliable performance under demanding conditions.

NN 3044 K/SPC3W33 Bearing’s open construction allows for easy lubrication with grease or oil.
The tapered bore design simplifies installation and enhances alignment accuracy.

This bearing operates efficiently within a temperature range of -30° to 110°C.
Its robust construction ensures long service life, even in challenging environments.

Application

Industrial Uses of NN 3044 K/SPC3W33 Bearing
NN 3044 K/SPC3W33 Bearing is commonly used in heavy machinery like rolling mills and gearboxes, where its double-row design handles high radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during operation.

In wind turbines, NN 3044 K/SPC3W33 Bearing supports the main shaft, offering stability under varying wind conditions. Its chrome steel construction and grease lubrication make it suitable for long-term use in harsh environments.

For precision machine tools, NN 3044 K/SPC3W33 Bearing provides accurate rotation and minimal vibration. The open seal design allows for easy lubrication, maintaining performance in high-speed applications.

Where Is NN 3044 K/SPC3W33 Bearing Used?
NN 3044 K/SPC3W33 Bearing is ideal for paper manufacturing equipment, where its combined load capacity handles the demands of heavy rollers. The metric dimensions ensure compatibility with European machinery standards.

In mining equipment, NN 3044 K/SPC3W33 Bearing withstands extreme loads and vibrations. Its robust design and high dynamic radial load rating make it a reliable choice for conveyor systems and crushers.

Built for Heavy-Duty Use: NN 3044 K/SPC3W33 Bearing
NN 3044 K/SPC3W33 Bearing excels in steel production lines, where its durability and precision are critical. The open seal design simplifies maintenance, reducing downtime in continuous operations.

For marine applications, NN 3044 K/SPC3W33 Bearing performs well in propeller shafts, resisting corrosion and wear. Its temperature range and lubrication options adapt to both cold and warm environments.

Automotive vs Aerospace: Applications of NN 3044 K/SPC3W33 Bearing
In automotive testing rigs, NN 3044 K/SPC3W33 Bearing ensures smooth operation under high-speed conditions. Its combined load capacity makes it versatile for various testing scenarios.

For aerospace ground equipment, NN 3044 K/SPC3W33 Bearing provides reliable support in landing gear simulators. The precision and stability are essential for accurate performance testing.

Q&A

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