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Heavy Duty Needle Roller Bearings (Machined) NK55/25-XL

Heavy Duty Needle Roller Bearings (Machined) NK55/25-XL

The NK55/25-XL is a heavy-duty needle roller bearing with a 55mm bore and 68mm outer diameter, crafted from sturdy steel for reliable performance. It handles radial loads up to 10238 lbf and spins smoothly at speeds up to 8400 RPM.
Its open design requires regular lubrication, while the steel cage ensures durability under heavy use. 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 high radial loads are common.
Weighing just 180g, it’s lightweight yet robust for its size. Compliant with RoHS standards for safe use.

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    Description Features Application Q&A Featured Products Our Process

Product Parameters

  • Part Number NK55/25-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 55 mm
  • Bore Dia Tolerance 0.03mm to 0.049mm
  • Outer Dia 68 mm
  • Outer Dia Tolerance -0.013mm to 0
  • Width 25 mm
  • Width Tolerance -0.15mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 10238 lbf
  • Static Radial Load 18450 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 8400 rpm
  • Weight 180 g
Heavy Duty Needle Roller Bearings (Machined) NK55/25-XL dimension drawing
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Features

How Does NK55/25-XL Bearing Handle Heavy Loads?
NK55/25-XL Bearing is built with high-quality steel rollers, offering strong resistance to heavy radial loads.
Its dynamic radial load capacity reaches 10238 lbf, making it suitable for demanding industrial applications.
The press-fit shaft mount ensures secure installation, reducing the risk of slippage under heavy loads.
With a maximum speed of 8400 rpm, it delivers reliable performance in high-speed conditions.
NK55/25-XL Bearing operates efficiently in temperatures ranging from -20 to 110 °C.
Its open design allows for easy lubrication, ensuring smooth operation over extended periods.

Application

Industrial Uses of NK55/25-XL Bearing
NK55/25-XL Bearing is commonly used in heavy machinery, such as construction equipment and agricultural tools, where its high radial load capacity is essential. The open design and steel construction make it durable in demanding environments.
Where Is NK55/25-XL Bearing Used?
In automotive applications, NK55/25-XL Bearing fits well in gearboxes and transmission systems, handling high speeds and radial loads. Its press-fit mounting ensures a secure installation for long-term reliability.
Built for Heavy-Duty Use: NK55/25-XL Bearing
For automation systems, NK55/25-XL Bearing supports robotic arms and conveyor belts, offering smooth operation under continuous use. The steel rollers provide excellent wear resistance, reducing maintenance needs.
Automotive vs Industrial: Applications of NK55/25-XL Bearing
NK55/25-XL Bearing excels in both automotive and industrial settings, from vehicle drivetrains to factory machinery. Its metric sizing and high dynamic load rating make it versatile for various applications.

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