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Double Row Super-Precision Cylindrical Roller Bearings NN 3052 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3052 K/SPW33

The NN 3052 K/SPW33 is a double-row cylindrical roller bearing with a 260mm bore and 400mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 229500 lbf and runs smoothly at speeds up to 2000 RPM.

Its open design allows easy lubrication with grease or oil, while the tapered bore ensures secure fitting. 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 machinery or industrial equipment where high radial loads are common.

Weighing 45.3kg, it’s a robust solution for demanding applications. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3052 K/SPW33
  • Size 260 mm x 400 mm x 104 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 260 mm
  • Bore Dia Tolerance 0 to +0.035mm
  • Outer Dia 400 mm
  • Outer Dia Tolerance -0.023mm to 0
  • Width 104 mm
  • Width Tolerance -0.35mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 4 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.5 mm
  • Permissible Axial Displacement(max.) 5 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 229500 lbf
  • Static Radial Load 434250 lbf
  • Max Speed 2000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 45.3 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 15.3 mm
  • Diameter Lubrication Hole (outer Ring) (K) 7.5 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3052 K/SPW33 dimension drawing
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Features

Performance Features of NN 3052 K/SPW33 Bearing

NN 3052 K/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 229500 lbf, making it suitable for heavy-duty applications.

The double-row cylindrical design ensures stability and precision, even at high speeds up to 2000 rpm.
With a taper bore of 1:12, it provides secure fitting and easy installation.

NN 3052 K/SPW33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
The open seal type allows for flexible lubrication options, including grease or oil.

The chamfer dimensions on both inner and outer rings reduce stress concentrations, enhancing durability.
Its permissible axial displacement of up to 5 mm accommodates slight misalignments without compromising performance.

Application

Industrial Uses of NN 3052 K/SPW33 Bearing
NN 3052 K/SPW33 Bearing is commonly used in heavy machinery like rolling mills and gearboxes, where its double-row design handles combined radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during high-speed operations.

In wind turbines, NN 3052 K/SPW33 Bearing’s high dynamic radial load capacity makes it ideal for supporting rotor shafts under varying wind conditions. Its chrome steel construction also resists wear in harsh outdoor environments.

For precision machine tools, NN 3052 K/SPW33 Bearing’s low axial displacement tolerance ensures accurate positioning during cutting or grinding processes. The open seal design allows for easy lubrication, extending service life in continuous-use applications.

What Makes NN 3052 K/SPW33 Bearing a Preferred Choice?
NN 3052 K/SPW33 Bearing is favoured in paper production equipment due to its ability to withstand heavy loads and high speeds. The grease or oil lubrication options provide flexibility for different operating conditions.

In mining equipment, NN 3052 K/SPW33 Bearing’s robust construction handles the extreme loads and vibrations common in crushers and conveyors. Its metric sizing ensures compatibility with international machinery standards.

Built for Heavy-Duty Use: NN 3052 K/SPW33 Bearing
NN 3052 K/SPW33 Bearing excels in steel manufacturing, where its high static radial load capacity supports rolling stands under intense pressure. The annular lubrication groove ensures even grease distribution for consistent performance.

For marine propulsion systems, NN 3052 K/SPW33 Bearing’s corrosion-resistant materials and wide temperature range make it reliable in saltwater environments. The double-row rollers distribute loads evenly, reducing stress on individual components.

Light-Duty vs Heavy-Duty: Best Uses for NN 3052 K/SPW33 Bearing
NN 3052 K/SPW33 Bearing is versatile enough for both light-duty applications like printing presses and heavy-duty uses in hydraulic presses. Its combined load handling makes it adaptable across industries.

In food processing machinery, NN 3052 K/SPW33 Bearing’s open design allows for easy cleaning, meeting hygiene standards. The high-speed capability also suits mixers and conveyors in production lines.

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