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Double Row Super-Precision Cylindrical Roller Bearings NN 3072 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3072 K/SPW33

The NN 3072 K/SPW33 is a double-row cylindrical roller bearing with a 360mm bore and 540mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 387,000 lbf and runs smoothly at speeds up to 2000 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 reliable choice for replacements. Ideal for heavy-duty applications like industrial machinery or large gearboxes where precision and durability are key.

Weighing 102kg, 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 3072 K/SPW33
  • Size 360 mm x 540 mm x 134 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 360 mm
  • Bore Dia Tolerance 0 to +0.040mm
  • Outer Dia 540 mm
  • Outer Dia Tolerance -0.028mm to 0
  • Width 134 mm
  • Width Tolerance -0.40mm to 0
  • Chamfer Dimension Outer Ring(r1,2)(min.) 5 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 2.5 mm
  • Permissible Axial Displacement(max.) 10.9 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 387000 lbf
  • Static Radial Load 776250 lbf
  • Max Speed 2000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 102 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 16.7 mm
  • Diameter Lubrication Hole (outer Ring) (K) 9 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3072 K/SPW33 dimension drawing
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Features

Performance Features of NN 3072 K/SPW33 Bearing

NN 3072 K/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 387,000 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 2,000 rpm, it delivers reliable performance under demanding conditions.

NN 3072 K/SPW33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design simplifies installation and ensures secure fitting.
This feature enhances the bearing’s alignment and overall performance in industrial settings.

Application

Industrial Uses of NN 3072 K/SPW33 Bearing
NN 3072 K/SPW33 Bearing is commonly used in heavy machinery like rolling mills and large gearboxes, where its double-row design handles both radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during high-load operations.

What Makes NN 3072 K/SPW33 Bearing a Preferred Choice?
In wind turbines, NN 3072 K/SPW33 Bearing’s high dynamic load capacity and grease lubrication make it ideal for long-term reliability in harsh environments. Its chrome steel construction also resists wear, even under constant rotation.

Built for Heavy-Duty Use: NN 3072 K/SPW33 Bearing
For mining equipment, NN 3072 K/SPW33 Bearing’s open design allows easy lubrication, extending service life in dusty conditions. The large bore diameter accommodates heavy shafts, making it a go-to for conveyor systems.

Automotive vs Aerospace: Applications of NN 3072 K/SPW33 Bearing
In automotive testing rigs, NN 3072 K/SPW33 Bearing supports high-speed rotations with precision, while in aerospace, its temperature range suits auxiliary power units. The metric sizing ensures compatibility across global standards.

Essential Roles of NN 3072 K/SPW33 Bearing
NN 3072 K/SPW33 Bearing is vital in paper manufacturing machines, where its static load capacity handles the weight of heavy rollers. The oil lubrication option further enhances performance in high-speed scenarios.

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