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Heavy Duty Needle Roller Bearings (Machined) NA6918-ZW-XL

Heavy Duty Needle Roller Bearings (Machined) NA6918-ZW-XL

The NA6918-ZW-XL is a heavy-duty needle roller bearing with a 90mm bore and 125mm outer diameter, built from sturdy steel for long-lasting performance. It handles radial loads up to 43875 lbf and operates smoothly at speeds up to 4400 RPM.
Its double-row design provides extra stability, while the open seal allows for easy lubrication. The bearing is press-fit mounted, ensuring a secure installation.
This model works well in temperatures from -20°C to 110°C and is interchangeable with INA bearings. Ideal for heavy machinery or industrial equipment where high radial loads are common.
Weighing 2310g, it’s a robust choice for demanding applications. Compliant with RoHS standards for safe use.

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Product Parameters

  • Part Number NA6918-ZW-XL
  • Brand TFL
  • Interchangeable brand INA
  • System of Measurement Metric
  • Bearing Type Roller
  • Roller Bearing Type Needle
  • For Load Direction Radial
  • Construction Double Row
  • Seal Type Open
  • Inner Ring Yes
  • Series With Inner Ring
  • Bore Dia 90 mm
  • Bore Dia Tolerance -0.02mm to 0
  • Outer Dia 125 mm
  • Outer Dia Tolerance -0.018mm to 0
  • Width 63 mm
  • Width Tolerance -0.2mm to 0
  • Ring Material Steel
  • Cage Material Steel
  • Roller Material Steel
  • Dynamic Radial Load 43875 lbf
  • Static Radial Load 95625 lbf
  • Lubrication Required
  • Shaft Mount Type Press Fit
  • Temperature Range -20 to 110 °C
  • RoHS Compliant
  • Max Speed 4400 rpm
  • Weight 2310 g
Heavy Duty Needle Roller Bearings (Machined) NA6918-ZW-XL dimension drawing
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Features

Performance Features of NA6918-ZW-XL Bearing
NA6918-ZW-XL Bearing is built with a double-row needle roller design, offering high radial load capacity.
Its dynamic radial load rating of 43875 lbf ensures reliable performance in heavy-duty applications.
The steel construction provides durability, while the press-fit shaft mount simplifies installation.
With a maximum speed of 4400 rpm, it balances strength and efficiency.

Application

Industrial Uses of NA6918-ZW-XL Bearing
NA6918-ZW-XL Bearing is commonly used in heavy machinery, such as construction equipment and agricultural tools, where its double-row design handles significant radial loads. The steel construction ensures durability in demanding environments.
In automotive applications, NA6918-ZW-XL Bearing fits well in gearboxes and drivetrains, providing reliable performance under high stress. Its press-fit mounting simplifies installation in tight spaces.
For automation systems, NA6918-ZW-XL Bearing supports robotic arms and conveyor belts, offering smooth operation at high speeds. The open design allows for easy lubrication, extending service life.
Where Is NA6918-ZW-XL Bearing Used?
NA6918-ZW-XL Bearing is ideal for industrial presses, where its high dynamic load capacity ensures consistent performance. The machined construction provides precision for repetitive tasks.
In wind turbines, NA6918-ZW-XL Bearing handles radial loads from rotor blades, withstanding harsh weather conditions. The steel rollers and cage enhance longevity in outdoor settings.
Built for Heavy-Duty Use: NA6918-ZW-XL Bearing
NA6918-ZW-XL Bearing excels in mining equipment, where its robust design copes with extreme loads and vibrations. The wide temperature range makes it suitable for varied climates.
For printing machinery, NA6918-ZW-XL Bearing ensures smooth paper feed and roller movement. Its high-speed capability and low maintenance needs reduce downtime.
Automotive vs Aerospace: Applications of NA6918-ZW-XL Bearing
In automotive systems, NA6918-ZW-XL Bearing is found in transmissions, offering reliable power transfer. The metric sizing ensures compatibility with global vehicle designs.
For aerospace components, NA6918-ZW-XL Bearing supports auxiliary systems, where precision and weight efficiency are critical. Its steel construction meets industry standards for safety.

Q&A

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