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Double Row Super-Precision Cylindrical Roller Bearings NN 3076 K/SPW33

Double Row Super-Precision Cylindrical Roller Bearings NN 3076 K/SPW33

The NN 3076 K/SPW33 is a double-row cylindrical roller bearing with a 380mm bore and 560mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 378000 lbf and runs smoothly at speeds up to 1000 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 reliable choice for replacements. Ideal for heavy machinery like gearboxes or industrial equipment where precision and durability are key.

Weighing 105kg, it’s robust and built to last. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NN 3076 K/SPW33
  • Size 380 mm x 560 mm x 135 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 380 mm
  • Bore Dia Tolerance 0 to +0.040mm
  • Outer Dia 560 mm
  • Outer Dia Tolerance -0.028mm to 0
  • Width 135 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.) 11.9 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 378000 lbf
  • Static Radial Load 776250 lbf
  • Max Speed 1000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 105 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 3076 K/SPW33 dimension drawing
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Features

Performance Features of NN 3076 K/SPW33 Bearing

NN 3076 K/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 378,000 lbf, making it suitable for heavy-duty applications.

The double-row cylindrical design ensures stability and precision in high-performance machinery.
With a maximum speed of 1,000 rpm, it balances durability and efficiency in demanding conditions.

NN 3076 K/SPW33 Bearing operates effectively in temperatures ranging from -30° to 110°C.
Its open seal type allows for easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design simplifies installation and ensures a secure fit.
This bearing’s robust construction extends its service life, even under continuous heavy loads.

Application

Industrial Uses of NN 3076 K/SPW33 Bearing
NN 3076 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-load operations.

What Makes NN 3076 K/SPW33 Bearing a Preferred Choice?
In wind turbines, NN 3076 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.

Built for Heavy-Duty Use: NN 3076 K/SPW33 Bearing
For large industrial pumps, NN 3076 K/SPW33 Bearing’s open design allows easy lubrication, extending service life even in continuous operation. The wide temperature range ensures reliability in both hot and cold climates.

Automotive vs Aerospace: Applications of NN 3076 K/SPW33 Bearing
In automotive testing rigs, NN 3076 K/SPW33 Bearing’s precision supports high-speed simulations, while in aerospace, its static load capacity suits ground support equipment. The metric sizing aligns with global manufacturing standards.

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