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Heavy Duty Needle Roller Bearings (Machined) NKIS55-XL

Heavy Duty Needle Roller Bearings (Machined) NKIS55-XL

The NKIS55-XL is a heavy-duty needle roller bearing with a 55mm bore and 85mm outer diameter, crafted from sturdy steel for reliable performance. It handles radial loads up to 16875 lbf and operates smoothly at speeds up to 6900 RPM.
Its open design requires lubrication, while the steel cage ensures durability under pressure. The bearing is designed for press-fit mounting, making installation straightforward.
This model is interchangeable with INA bearings, offering a practical replacement option. Ideal for industrial machinery or automotive applications where high radial loads are common.
Weighing 558g, it’s robust yet manageable for its size. Compliant with RoHS standards, it works in temperatures from -20°C to 110°C.

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Product Parameters

  • Part Number NKIS55-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 Yes
  • Series With Inner Ring
  • Bore Dia 55 mm
  • Bore Dia Tolerance -0.015mm to 0
  • Outer Dia 85 mm
  • Outer Dia Tolerance -0.015mm to 0
  • Width 28 mm
  • Width Tolerance -0.15mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 16875 lbf
  • Static Radial Load 24300 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 6900 rpm
  • Weight 558 g
Heavy Duty Needle Roller Bearings (Machined) NKIS55-XL dimension drawing
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Features

How Does NKIS55-XL Bearing Handle Heavy Loads?
NKIS55-XL Bearing is built with steel rings and rollers, offering strong resistance to heavy radial loads.
Its dynamic radial load capacity reaches 16875 lbf, making it suitable for demanding industrial applications.
The steel cage ensures proper roller alignment, reducing friction and wear.
With a maximum speed of 6900 rpm, it delivers reliable performance under high-stress conditions.

Application

Industrial Uses of NKIS55-XL Bearing
NKIS55-XL Bearing is commonly used in heavy machinery like construction equipment and agricultural tools, where its high radial load capacity handles demanding conditions. The steel construction ensures durability even in rugged environments.
In automotive applications, NKIS55-XL Bearing fits well in gearboxes and drivetrains, providing reliable performance under constant stress. Its press-fit design simplifies installation, making it a favourite among mechanics.
For automation systems, NKIS55-XL Bearing supports robotic arms and conveyor belts, where precision and longevity are key. The open seal design allows for easy lubrication, extending its service life.
Where Is NKIS55-XL Bearing Used?
You’ll often find NKIS55-XL Bearing in industrial fans and pumps, where its ability to handle high speeds up to 6900 rpm is crucial. The steel cage and rollers ensure smooth operation over time.
In printing machinery, NKIS55-XL Bearing’s precise dimensions help maintain consistent paper feed and alignment. Its metric sizing makes it compatible with a wide range of European-made equipment.
Built for Heavy-Duty Use: NKIS55-XL Bearing
NKIS55-XL Bearing excels in applications like hydraulic pumps and compressors, where radial loads are intense. The steel materials resist wear, even in high-temperature environments.
For material handling systems, NKIS55-XL Bearing’s robust design ensures reliable performance in conveyor rollers. Its easy press-fit mounting saves time during maintenance or replacements.
Automotive vs Industrial: Applications of NKIS55-XL Bearing
In automotive settings, NKIS55-XL Bearing is ideal for wheel hubs and transmissions, offering stability under heavy loads. The steel construction withstands constant vibration and stress.
For industrial gearboxes, NKIS55-XL Bearing’s high dynamic load rating makes it a dependable choice. Its open design allows for regular lubrication, keeping operations smooth.

Q&A

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