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Double Row Super-Precision Cylindrical Roller Bearings NN 3044 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3044 K/SPW33

The NN 3044 K/SPW33 is a double-row cylindrical roller bearing with a 220mm bore and 340mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 182025 lbf and runs smoothly at speeds up to 3000 RPM.

Its open design allows for easy lubrication with grease or oil, while the tapered bore ensures a secure fit. 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 built to last and complies with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3044 K/SPW33
  • 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/SPW33 dimension drawing
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Features

Performance Features of NN 3044 K/SPW33 Bearing

NN 3044 K/SPW33 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 design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 3000 rpm, it balances performance and durability in demanding conditions.

NN 3044 K/SPW33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for flexible lubrication options, either grease or oil, to suit various needs.

The tapered bore design simplifies installation and ensures secure fitting.
Precision engineering reduces wear, extending the bearing’s service life in industrial applications.

Application

Industrial Uses of NN 3044 K/SPW33 Bearing
NN 3044 K/SPW33 Bearing is commonly used in heavy machinery like rolling mills and gearboxes, where its double-row design handles both radial and axial loads efficiently. The open seal type allows for easy lubrication, making it suitable for high-speed operations.

In automotive applications, NN 3044 K/SPW33 Bearing supports components like drivetrains and wheel hubs, ensuring smooth performance under combined loads. Its chrome steel construction offers durability in demanding conditions.

For automation systems, NN 3044 K/SPW33 Bearing provides precision in robotic arms and CNC machines, where its tapered bore ensures secure fitting. The grease or oil lubrication options add flexibility for different operating environments.

What Makes NN 3044 K/SPW33 Bearing a Preferred Choice?
NN 3044 K/SPW33 Bearing excels in wind turbines, where its high dynamic radial load capacity withstands constant stress. The metric sizing ensures compatibility with international equipment standards.

In medical imaging devices, NN 3044 K/SPW33 Bearing’s precision reduces vibration, enhancing scan accuracy. The temperature range of -30° to 110°C makes it reliable in various clinical settings.

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