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National Engineering Industries Ltd.
Khatipura Road Jaipur – 302006 Rajasthan, India
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Toll Free: 1800 3000 6222
Telephone: +91 141 222 3221
Fax: +91 141 222 1926, 222 2259
CIN: U29130WB1946PLC013643

Needle Roller Bearings

What are Needle Roller Bearings?

Imagine a tiny, cylindrical roller—a needle roller—nestled snugly within a framework, like a bird in its cage. This setup forms what we call a needle roller bearing, a compact yet powerful component used in machinery across various industries. These bearings come with inner and outer rings that provide support and housing for the needle rollers, ensuring smooth rotation even in tight spaces. Their ability to handle heavy loads in small areas makes them a go-to choice in everything from cars to airplanes.

Products Table

Products Principal Dimensions Basic Load Ratings
    Dynamic Static
  d [mm] D [mm] B [mm] C [kn] Co [kn]

Types of Needle Roller Bearings

Needle roller bearing
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Shell Type Needle Roller Bearing
Featuring a thin-walled outer ring, these bearings offer reduced weight and friction for optimal performance in various applications.
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Machined-Ring Needle Roller
Designed for high-speed applications and heavy loads, these bearings deliver superior performance and reliability.
Thrust Needle Roller Bearings
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Thrust Needle Roller Bearing
Engineered for high load capacity and compact design, these bearings are perfect for applications with limited space and heavy loads.

Features of Needle Roller Bearings

So, what makes needle roller bearings stand out?

  • Their compact size saves valuable space in machines, allowing for more efficient design and operation.
  • These bearings are tough cookies, capable of carrying hefty loads without breaking a sweat.
  • Their low friction nature means less energy wasted, requiring minimal upkeep even in the harshest environments.
  • Each of these translates to lower operating costs—a win-win for businesses.
  • And above all they deliver strong durability and are built to last.

Applications of Needle Roller Bearings

Needle roller bearings are the unsung heroes in many machines you encounter daily.

  • Automobile: In cars, they silently support radial loads in gearboxes and drive shafts, keeping your vehicle running smoothly.
  • Construction: Heavy-duty equipment like construction machinery and farm tools also rely on them to withstand tough conditions and deliver consistent performance.
  • Aerospace: Even in the skies, needle roller bearings play a vital role in aircraft engines, landing gear, and control systems, proving their mettle in critical aerospace applications.

Maintenance of Needle Roller Bearings

Even high performing bearings require regular check-ups to spot signs of wear or dirt buildup to prevent unexpected breakdowns. By staying on top of maintenance tasks, you can ensure your needle roller bearings keep ticking like clockwork for years to come.

  • Regular inspection of bearing assemblies for signs of wear, damage, or contamination. This is essential to prevent premature failure and ensure reliable operation.
  • Lubrication plays a critical role in maintaining optimal performance, as it reduces friction and wear between the needle rollers and bearing surfaces. Selecting the appropriate lubricant and following recommended lubrication intervals are key factors in prolonging bearing life.
  • Ensuring proper mounting and alignment of bearing assemblies helps prevent misalignment-induced stress and premature wear.

By adhering to a proactive maintenance regimen, users can optimize the performance and longevity of needle roller bearings in their applications.


What is a needle roller bearing used for?

Needle roller bearings are used to support high radial loads in applications with limited installation space, such as automotive transmissions, heavy machinery, and aerospace systems.

What is the difference between cylindrical roller bearing and needle bearing?

The main difference between cylindrical roller bearings and needle roller bearings lies in their design and dimensions.

Cylindrical roller bearings have cylindrical rollers with a larger diameter-to-length ratio, while needle roller bearings have slender cylindrical rollers with a higher length-to-diameter ratio, allowing them to support higher radial loads in limited-space applications.

What is the difference between needle bearing and tapered roller bearing?

  • Needle roller bearings and tapered roller bearings differ in their roller geometry and load-carrying capacity.
  • Needle roller bearings have cylindrical rollers with a high length-to-diameter ratio, while tapered roller bearings have conical rollers with a tapered shape.
  • Tapered roller bearings are typically used to support axial and radial loads in applications requiring precise axial positioning.

What material is used for needle bearings?

Needle roller bearings are commonly made from high-quality alloy steels or stainless steels, which offer excellent strength, hardness, and corrosion resistance. Some specialized applications may require needle bearings made from ceramic materials or polymer composites for enhanced performance and durability.

How are needle roller bearings measured?

Needle roller bearings are typically measured based on their bore diameter, outer diameter, and width dimensions. These dimensions are standardized according to international standards, such as ISO and ANSI, to ensure compatibility and interchangeability between different bearing manufacturers.

Can needle roller bearings take axial load?

While needle roller bearings are primarily designed to support radial loads, certain designs and configurations can also accommodate axial loads to some extent. However, axial load capacity may be limited compared to dedicated thrust bearings, and proper mounting and alignment are essential to prevent premature wear and failure under axial loading conditions.

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