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Double Row Super-Precision Cylindrical Roller Bearings NN 3048 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3048 K/SPW33

The NN 3048 K/SPW33 is a double-row cylindrical roller bearing with a 240mm tapered bore and 360mm outer diameter, built for combined loads. It handles heavy radial loads up to 189450 lbf and runs smoothly at speeds up to 3000 RPM.

Made from durable chrome steel, its open design allows flexible lubrication with grease or oil. The tapered bore ensures a secure fit, while the double-row construction boosts stability.

This bearing suits high-precision applications like machine tools or industrial gearboxes. It operates in temperatures from -30°C to 110°C and meets RoHS and REACH standards.

Weighing 30.7kg, it’s robust yet designed for efficient performance. Interchangeable with SKF bearings, it’s a reliable choice for replacements or upgrades.

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Product Parameters

  • Part Number NN 3048 K/SPW33
  • Size 240 mm x 360 mm x 92 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 240 mm
  • Bore Dia Tolerance 0 to +0.030mm
  • Outer Dia 360 mm
  • Outer Dia Tolerance -0.020mm to 0
  • Width 92 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 189450 lbf
  • Static Radial Load 351000 lbf
  • Max Speed 3000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 30.7 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 15.2 mm
  • Diameter Lubrication Hole (outer Ring) (K) 7.5 mm
Double Row Super-Precision Cylindrical Roller Bearings NN 3048 K/SPW33 dimension drawing
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Features

Why Choose NN 3048 K/SPW33 Bearing for Precision Tasks?

NN 3048 K/SPW33 Bearing features a double-row cylindrical roller design, ideal for handling combined loads with high precision.
Its chrome steel construction ensures durability and resistance to wear, even under heavy radial loads up to 189,450 lbf.

The tapered bore design simplifies installation, while the open seal type allows for flexible lubrication options.
With a maximum speed of 3,000 rpm, it delivers reliable performance in demanding industrial applications.

NN 3048 K/SPW33 Bearing operates smoothly within a temperature range of -30° to 110°C, suitable for various environments.
Its precise tolerances and robust materials make it a dependable choice for precision machinery.

Application

Industrial Uses of NN 3048 K/SPW33 Bearing
NN 3048 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 tapered bore ensures a secure fit, reducing slippage during high-speed operations.

What Makes NN 3048 K/SPW33 Bearing a Preferred Choice?
In wind turbines, NN 3048 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 under constant stress.

Built for Heavy-Duty Use: NN 3048 K/SPW33 Bearing
For industrial presses, NN 3048 K/SPW33 Bearing’s open design allows easy lubrication, maintaining smooth performance under extreme pressure. The wide temperature range ensures stability in both hot and cold conditions.

Automotive vs Aerospace: Applications of NN 3048 K/SPW33 Bearing
In automotive applications, NN 3048 K/SPW33 Bearing supports large drivetrain components, while in aerospace, its precision ensures reliable performance in landing gear systems. The metric sizing offers compatibility across various industries.

Q&A

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