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Heavy Duty Needle Roller Bearings (Machined) NK18/20-XL
Heavy Duty Needle Roller Bearings (Machined) NK18/20-XL

Heavy Duty Needle Roller Bearings (Machined) NK18/20-XL

The NK18/20-XL is a heavy-duty needle roller bearing with an 18mm bore and 26mm outer diameter, crafted from sturdy steel for reliable performance. It handles radial loads up to 4028 lbf and spins efficiently at speeds up to 22100 RPM.
Its open design requires regular lubrication, while the press-fit shaft mount ensures a secure installation. The bearing operates smoothly 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 automotive transmissions or industrial machinery where high radial loads are common.
Weighing just 31.4g, it’s lightweight yet robust for its size. Compliant with RoHS standards for safe use.

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Product Parameters

  • Part Number NK18/20-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 18 mm
  • Bore Dia Tolerance 0.016mm to 0.027mm
  • Outer Dia 26 mm
  • Outer Dia Tolerance -0.009mm to 0
  • Width 20 mm
  • Width Tolerance -0.12mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 4028 lbf
  • Static Radial Load 4950 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 22100 rpm
  • Weight 31.4 g

Features

How Does NK18/20-XL Bearing Handle Heavy Loads?
NK18/20-XL Bearing is built with steel rings and rollers, offering strong resistance to heavy radial loads.
Its dynamic radial load capacity reaches 4028 lbf, ensuring reliable performance in demanding applications.
The steel cage maintains roller alignment, reducing wear and extending service life.
With a maximum speed of 22,100 rpm, it balances durability and efficiency.
Why Choose NK18/20-XL Bearing for Precision Tasks?
NK18/20-XL Bearing’s precision-engineered design ensures accurate radial load handling in tight spaces.
The press-fit shaft mount type provides secure installation, minimising movement during operation.
Its compact dimensions (18mm bore, 26mm outer diameter) make it ideal for space-constrained applications.
The steel construction withstands temperatures from -20°C to 110°C for versatile use.
Engineered for Reliability: NK18/20-XL Bearing
NK18/20-XL Bearing features a robust steel construction that resists wear in high-load conditions.
The open design allows for easy lubrication, maintaining smooth operation over time.
With a static radial load capacity of 4950 lbf, it delivers consistent performance.
Its lightweight design (31.4g) reduces overall system weight without compromising strength.

Application

Industrial Uses of NK18/20-XL Bearing
NK18/20-XL Bearing is commonly used in industrial machinery, especially in applications where space is limited but high radial load capacity is needed, like conveyor systems. Its press-fit design ensures a secure mount, reducing the risk of slippage during operation.
Where Is NK18/20-XL Bearing Used?
In automotive applications, NK18/20-XL Bearing fits well in gearboxes and transmission systems, handling high speeds up to 22,100 rpm. The steel construction provides durability, making it suitable for long-term use in demanding conditions.
Built for Heavy-Duty Use: NK18/20-XL Bearing
For automation equipment, NK18/20-XL Bearing offers reliable performance in robotic arms and linear guides. Its open design allows for easy lubrication, ensuring smooth movement even under continuous operation.
Automotive vs Industrial: Applications of NK18/20-XL Bearing
In consumer electronics, NK18/20-XL Bearing can be found in printers and small appliances, where its compact size and high load capacity are advantageous. The steel rollers ensure consistent performance over time.

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