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Double Row Cylindrical Roller Bearings NNU 4168 M/W33

Double Row Cylindrical Roller Bearings NNU 4168 M/W33

The NNU 4168 M/W33 is a double-row cylindrical roller bearing with a 340mm bore and 580mm outer diameter, designed for heavy-duty applications. It handles combined loads up to 904500 lbf and operates smoothly at speeds up to 1000 RPM.

Made from high-quality materials, this bearing features a W33 lubrication groove for easy greasing or oiling. Its robust design ensures reliable performance in temperatures ranging from -30°C to 110°C.

The bearing is interchangeable with SKF models, making it a practical choice for replacements. Ideal for industrial machinery, such as large gearboxes or rolling mills, where high radial loads are common.

With a width of 243mm and chamfered edges, it’s easy to install and maintain. Compliant with RoHS and REACH standards, it’s both durable and safe for various environments.

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Product Parameters

  • Part Number NNU 4168 M/W33
  • Brand TFL
  • Interchangeable SKF
  • Bore Dia 340 mm
  • Outer Dia 580 mm
  • Width 243mm
  • Chamfer Dimension Outer Ring(r1,2)(min.) 5 mm
  • Chamfer Dimension Inner Ring(r3,4)(min.) 5 mm
  • Permissible Axial Displacement(max.) 10 mm
  • System of Measurement Metric
  • Roller Bearing Type Cylindrical
  • For Load Direction Combined
  • Dynamic Radial Load 904500 lbf
  • Static Radial Load 1687500 lbf
  • Max Speed 1000 rpm
  • Lubrication Grease, Oil
  • Temperature Range -30° to 110 °C
  • RoHS Compliant
  • REACH Compliant
Double Row Cylindrical Roller Bearings NNU 4168 M/W33 dimension drawing
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Features

Performance Features of NNU 4168 M/W33 Bearing

NNU 4168 M/W33 Bearing is designed for combined load applications, handling dynamic radial loads up to 904500 lbf.
Its double-row cylindrical roller construction ensures stability and precision in heavy-duty operations.

The bearing operates efficiently within a temperature range of -30° to 110°C, suitable for various industrial environments.
With a maximum speed of 1000 rpm, it balances performance and durability.

NNU 4168 M/W33 Bearing’s chamfer dimensions of 5 mm on both inner and outer rings facilitate easier installation.
Its permissible axial displacement of 10 mm allows for slight misalignments without compromising performance.

Lubrication options include grease or oil, providing flexibility for different maintenance needs.
The bearing’s robust design ensures long service life, reducing replacement frequency.

Application

Industrial Uses of NNU 4168 M/W33 Bearing
NNU 4168 M/W33 Bearing is commonly used in heavy machinery like rolling mills and large gearboxes, where its double-row design handles high radial loads with ease. The W33 lubrication groove ensures smooth operation even in demanding industrial environments.

Where Is NNU 4168 M/W33 Bearing Used?
In wind turbines, NNU 4168 M/W33 Bearing supports the main shaft, providing stability under variable loads and harsh weather conditions. Its metric sizing makes it a reliable choice for European and Asian turbine designs.

Built for Heavy-Duty Use: NNU 4168 M/W33 Bearing
This bearing excels in mining equipment, such as crushers and conveyors, where its combined load capacity and grease lubrication extend service life. The chrome steel construction adds durability in abrasive environments.

Automotive vs Aerospace: Applications of NNU 4168 M/W33 Bearing
While NNU 4168 M/W33 Bearing isn’t typical in aerospace, it’s ideal for large commercial vehicles like buses and trucks, handling heavy radial loads in drivetrains. Its oil lubrication option suits high-speed industrial applications too.

Perfect Fit for Automation: NNU 4168 M/W33 Bearing
In automated production lines, NNU 4168 M/W33 Bearing ensures precise alignment in robotic arms and heavy-duty conveyors. The wide temperature range allows consistent performance in varying factory conditions.

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