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Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/UPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/UPW33

The NN 3040 K/UPW33 is a double-row cylindrical roller bearing with a 200mm bore and 310mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 144900 lbf and runs smoothly at speeds up to 3000 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 gearboxes where precision and durability are key.

Weighing 21.6kg, 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 3040 K/UPW33
  • Size 200 mm x 310 mm x 82 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 200 mm
  • Bore Dia Tolerance 0 to +0.030mm
  • Outer Dia 310 mm
  • Outer Dia Tolerance -0.012mm to 0
  • Width 82 mm
  • Width Tolerance -0.15mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 2.1 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
  • Permissible Axial Displacement(max.) 3 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 144900 lbf
  • Static Radial Load 256500 lbf
  • Max Speed 3000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 21.6 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 12.2 mm
  • Diameter Lubrication Hole (outer Ring) (K) 6 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/UPW33 dimension drawing
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Features

Performance Features of NN 3040 K/UPW33 Bearing

NN 3040 K/UPW33 Bearing is designed with chrome steel rings and rollers, offering strong resistance to combined loads.
Its dynamic radial load capacity reaches 144900 lbf, ensuring reliable performance in demanding applications.

The double-row construction of NN 3040 K/UPW33 Bearing provides stability and precision, even at high speeds.
With a maximum speed of 3000 rpm, it balances durability and efficiency in various industrial settings.

NN 3040 K/UPW33 Bearing works in temperatures ranging from -30° to 110 °C, maintaining performance in diverse conditions.
The open design allows for easy lubrication, whether using grease or oil.

The tapered bore design of NN 3040 K/UPW33 Bearing simplifies installation and ensures a secure fit.
Its permissible axial displacement of up to 3 mm accommodates slight misalignments without compromising performance.

Application

Industrial Uses of NN 3040 K/UPW33 Bearing
NN 3040 K/UPW33 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 tapered bore ensures a secure fit, reducing slippage during high-speed operations.

In wind turbines, NN 3040 K/UPW33 Bearing’s high dynamic load capacity makes it ideal for supporting rotor shafts under varying wind conditions. Its chrome steel construction also withstands harsh outdoor environments.

For precision machine tools, NN 3040 K/UPW33 Bearing’s low tolerance range ensures accurate positioning and smooth rotation. The open seal design allows for easy lubrication, extending service life in continuous-use applications.

What Makes NN 3040 K/UPW33 Bearing a Preferred Choice?
NN 3040 K/UPW33 Bearing is often chosen for paper manufacturing equipment due to its ability to handle heavy loads and high speeds. The grease or oil lubrication options provide flexibility for different operating conditions.

In mining equipment, NN 3040 K/UPW33 Bearing’s robust construction resists wear from abrasive materials. Its combined load capacity makes it suitable for crushers and conveyors.

Built for Heavy-Duty Use: NN 3040 K/UPW33 Bearing
NN 3040 K/UPW33 Bearing excels in steel production lines, where its high static radial load capacity supports heavy rollers. The temperature range ensures reliability even in hot working environments.

For marine applications, NN 3040 K/UPW33 Bearing’s corrosion-resistant materials and lubrication options make it a reliable choice for propeller shafts. Its durability reduces maintenance needs in saltwater conditions.

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