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Heavy Duty Needle Roller Bearings (Machined) NK25/20-XL

Heavy Duty Needle Roller Bearings (Machined) NK25/20-XL

The NK25/20-XL is a heavy-duty needle roller bearing with a 25mm bore and 33mm outer diameter, crafted from sturdy steel for reliable performance. It handles radial loads up to 4792 lbf and spins smoothly at speeds up to 17800 RPM.
Its open design requires regular lubrication, while the press-fit shaft mount ensures a secure installation. The bearing operates well in temperatures from -20°C to 110°C, making it versatile for various conditions.
This model is interchangeable with INA bearings, offering a practical replacement option. Ideal for applications like gearboxes or automotive components where high radial loads are common.
Weighing just 42g, it’s lightweight yet robust for its size. Compliant with RoHS standards for safe and environmentally friendly use.

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Product Parameters

  • Part Number NK25/20-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 25 mm
  • Bore Dia Tolerance 0.02mm to 0.033mm
  • Outer Dia 33 mm
  • Outer Dia Tolerance -0.011mm to 0
  • Width 20 mm
  • Width Tolerance -0.12mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 4792 lbf
  • Static Radial Load 6862 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 17800 rpm
  • Weight 42 g
Heavy Duty Needle Roller Bearings (Machined) NK25/20-XL dimension drawing
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Features

How Does NK25/20-XL Bearing Handle Heavy Loads?
NK25/20-XL Bearing is built with steel rings and rollers, offering strong resistance to heavy radial loads.
Its dynamic radial load capacity reaches 4792 lbf, ensuring reliable performance in demanding applications.
The steel cage maintains roller alignment, reducing friction and extending service life.
With a maximum speed of 17,800 rpm, it balances durability and efficiency.
NK25/20-XL Bearing operates in temperatures from -20 to 110°C, suitable for various environments.
Its press-fit shaft mount simplifies installation, saving time and effort.

Application

Common Applications of NK25/20-XL Bearing
NK25/20-XL Bearing is widely used in industrial machinery, especially in compact spaces where high radial load capacity is needed, such as gearboxes and power tools. Its open design and steel construction make it durable for demanding environments.
In automotive applications, NK25/20-XL Bearing fits well in transmission systems and steering mechanisms, thanks to its press-fit mounting and high-speed capability. The metric dimensions ensure compatibility with various vehicle designs.
For automation equipment, NK25/20-XL Bearing provides reliable performance in robotic arms and conveyor systems, where precision and low maintenance are key. Its needle roller design offers excellent load distribution.
NK25/20-XL Bearing is also suitable for household appliances like washing machines, where its compact size and durability help reduce noise and vibration. The steel cage enhances longevity even with frequent use.

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