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Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/SPW33

The NN 3040 K/SPW33 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 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 reliable choice for replacements. Ideal for heavy machinery or industrial gearboxes where precision and durability are key.

Weighing 21.6kg, it’s built for robust performance in demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3040 K/SPW33
  • 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 -0.018mm to 0
  • Width 82 mm
  • Width Tolerance -0.30mm 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/SPW33 dimension drawing
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Features

Performance Features of NN 3040 K/SPW33 Bearing

NN 3040 K/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 144900 lbf, ensuring reliable performance in demanding conditions.

The double-row cylindrical design enhances stability and load distribution, reducing wear over time.
With a maximum speed of 3000 rpm, it balances precision and durability for industrial applications.

NN 3040 K/SPW33 Bearing operates efficiently in temperatures from -30° to 110°C, adapting to various environments.
Its open design allows for flexible lubrication options, either grease or oil, to suit different needs.

The tapered bore design ensures secure fitting, minimising slippage during operation.
This feature, combined with precise tolerances, makes installation straightforward and reliable.

Application

Industrial Uses of NN 3040 K/SPW33 Bearing
NN 3040 K/SPW33 Bearing is commonly used in heavy industrial machinery, such as rolling mills and large gearboxes, where its double-row design handles high radial and axial loads. The tapered bore ensures a secure fit, reducing slippage during operation.

What Makes NN 3040 K/SPW33 Bearing a Preferred Choice?
In precision engineering applications like CNC lathes, NN 3040 K/SPW33 Bearing offers excellent stability due to its chrome steel construction. The open seal design allows for easy lubrication, extending service life in demanding conditions.

Built for Heavy-Duty Use: NN 3040 K/SPW33 Bearing
NN 3040 K/SPW33 Bearing excels in wind turbine gearboxes, where its high dynamic load capacity withstands constant stress. The grease or oil lubrication options provide flexibility for different operating environments.

Automotive vs Aerospace: Applications of NN 3040 K/SPW33 Bearing
In automotive manufacturing, NN 3040 K/SPW33 Bearing supports large presses and assembly line equipment. For aerospace, its precision tolerances make it suitable for landing gear systems and engine components.

Where Is NN 3040 K/SPW33 Bearing Used?
NN 3040 K/SPW33 Bearing finds its place in paper mill machinery, handling both radial and axial loads with ease. The wide temperature range ensures reliable performance in various industrial settings.

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