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Double Row Super-Precision Cylindrical Roller Bearings NNU 49/600 BK/SPW33X

Double Row Super-Precision Cylindrical Roller Bearings NNU 49/600 BK/SPW33X

The NNU 49/600 BK/SPW33X is a double-row cylindrical roller bearing with a 600mm bore and 800mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 805500 lbf and runs smoothly at speeds up to 1000 RPM.

Its open design allows flexible 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 like industrial gearboxes or large presses where precision and durability are key.

Weighing 280kg, it’s designed for robust performance in demanding environments. Compliant with RoHS and REACH standards for safe use.

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Product Parameters

  • Part Number NNU 49/600 BK/SPW33X
  • Size 600 mm x 800 mm x 200 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 600 mm
  • Bore Dia Tolerance 0 to +0.050mm
  • Outer Dia 800 mm
  • Outer Dia Tolerance -0.050mm to 0
  • Width 200 mm
  • Width Tolerance -0.50mm 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.) 5.5 mm
  • Ring Material Chrome Steel
  • Roller Material Chrome Steel
  • Dynamic Radial Load 805500 lbf
  • Static Radial Load 2295000 lbf
  • Max Speed 1000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
  • Weight 280 kg
  • Width Annular Lubrication Groove Outer Ring(B1) 22.3 mm
  • Diameter Lubrication Hole (outer Ring) (K) 12 mm
  • Shoulder Dia Outer Ring 733.2 mm
  • Raceway Diameter Inner Ring 666 mm
Double Row Super-Precision Cylindrical Roller Bearings NNU 49/600 BK/SPW33X dimension drawing
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Features

Performance Features of NNU 49/600 BK/SPW33X Bearing

NNU 49/600 BK/SPW33X Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 805500 lbf, ensuring robust performance in heavy-duty applications.

The double-row design of NNU 49/600 BK/SPW33X Bearing enhances stability and load distribution.
With a maximum speed of 1000 rpm, it balances efficiency and durability in demanding conditions.

NNU 49/600 BK/SPW33X Bearing operates smoothly 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 of NNU 49/600 BK/SPW33X Bearing ensures secure fitting and alignment.
This feature minimises operational issues, enhancing reliability in precision applications.

Application

Industrial Uses of NNU 49/600 BK/SPW33X Bearing
NNU 49/600 BK/SPW33X Bearing is commonly used in heavy industrial machinery, such as large gearboxes and rolling mills, where its double-row design handles combined radial and axial loads efficiently. The open seal type allows for easy lubrication, ensuring long service life in demanding conditions.

What Makes NNU 49/600 BK/SPW33X Bearing a Preferred Choice?
In wind turbine applications, NNU 49/600 BK/SPW33X Bearing provides reliable performance due to its high dynamic radial load capacity and tapered bore for secure fitting. Its chrome steel construction ensures durability even in harsh outdoor environments.

Built for Heavy-Duty Use: NNU 49/600 BK/SPW33X Bearing
NNU 49/600 BK/SPW33X Bearing excels in paper manufacturing equipment, where its precision cylindrical rollers maintain alignment under heavy loads. The grease or oil lubrication options make it adaptable to different operational requirements.

Automotive vs Aerospace: Applications of NNU 49/600 BK/SPW33X Bearing
In automotive testing rigs, NNU 49/600 BK/SPW33X Bearing supports high-speed rotations with minimal friction, while in aerospace ground equipment, its static radial load capacity ensures stability during critical operations. The metric sizing simplifies integration with international standards.

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