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Heavy Duty Needle Roller Bearings (Machined) NK40/30-XL

Heavy Duty Needle Roller Bearings (Machined) NK40/30-XL

The NK40/30-XL is a heavy-duty needle roller bearing with a 40mm bore and 50mm outer diameter, crafted from sturdy steel for reliable performance. It handles radial loads up to 9900 lbf and spins smoothly at speeds up to 11400 RPM.
Its open design requires regular lubrication, while the steel cage ensures durability under high stress. The bearing operates well in temperatures from -20°C to 110°C.
This model is interchangeable with INA bearings, making it a practical choice for replacements. Ideal for applications like gearboxes or industrial machinery where radial loads are common.
Weighing just 125g, it’s lightweight yet robust for its size. Compliant with RoHS standards for safe use. The press-fit shaft mount ensures a secure installation.

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Product Parameters

  • Part Number NK40/30-XL
  • Brand TFL
  • Interchangeable brand INA
  • System of Measurement Metric
  • Bearing Type Roller
  • Roller Bearing Type Needle
  • For Load Direction Radial
  • Construction Single Row
  • Seal Type Open
  • Inner Ring No
  • Series Without Inner Ring
  • Bore Dia 40 mm
  • Bore Dia Tolerance 0.025mm to 0.041mm
  • Outer Dia 50 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 30 mm
  • Width Tolerance -0.12mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 9900 lbf
  • Static Radial Load 17775 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 11400 rpm
  • Weight 125 g
Heavy Duty Needle Roller Bearings (Machined) NK40/30-XL dimension drawing
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Features

Performance Features of NK40/30-XL Bearing
NK40/30-XL Bearing is built with a robust steel construction, ideal for heavy radial loads up to 9900 lbf.
Its open design allows for easy lubrication, ensuring smooth operation even at high speeds of 11,400 rpm.
The press-fit shaft mount simplifies installation, saving time and effort.
With a temperature range of -20 to 110°C, it performs reliably in various environments.

Application

Industrial Uses of NK40/30-XL Bearing
NK40/30-XL Bearing is commonly used in heavy machinery like construction equipment and agricultural tools, where its high radial load capacity handles demanding conditions. The press-fit design ensures a secure mounting on shafts, reducing maintenance needs.
In automotive applications, NK40/30-XL Bearing fits well in gearboxes and transmission systems, providing smooth rotation under high stress. Its steel construction offers durability, making it suitable for long-term use in vehicles.
For automation systems, NK40/30-XL Bearing supports robotic arms and conveyor belts, where precision and reliability are key. The open seal type allows for easy lubrication, extending the bearing’s service life in continuous operations.
NK40/30-XL Bearing also works in industrial fans and pumps, where its high-speed capability ensures efficient performance. The metric dimensions make it compatible with a variety of European and Asian machinery designs.

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