The uses of various types of needle roller bearings

Needle roller bearings are a type of roller bearing designed with cylindrical rollers that are thin and long relative to their diameter.  These cylindrical rollers are called needle rollers, and they are a key component in needle roller bearing design.  Needle roller bearings are widely used in a variety of applications across different industries due to their ability to handle high radial loads at a relatively low cost.  The use of various types of needle roller bearings has become critical in many mechanical systems, and understanding the different types available can help select the most appropriate option for a specific application.

Opened stamped outer ring needle roller bearings

 Open drawn cup needle roller bearings are a common type of needle roller bearing designed with a stamped housing to accommodate the needle rollers.  Open on one end and closed on the other, these bearings are easy to install and maintain.  Open drawn cup needle roller bearings are suitable for applications where the housing bore cannot be used as a needle roller raceway.

Closed drawn cup needle roller bearings

 Closed drawn cup needle roller bearings are similar to open drawn cup needle roller bearings, but they are sealed at both ends with metal or plastic end caps.  This design helps retain lubricant and protect the needle rollers from contamination, making them ideal for applications requiring cleanliness and minimal maintenance.

Needle roller bearings with inner ring

 Needle roller bearings with inner rings are designed with an inner ring that provides a hardened and ground raceway for the needle rollers.  This design makes it easier to install and remove the bearings and improves load distribution and increases rigidity.  Needle roller bearings with inner rings are often used in applications where the shaft cannot be used as a needle roller raceway.

Needle roller bearings without inner ring and cage

 Needle roller bearings without inner rings and cages are designed for use with hardened and ground shafts as raceways for the needle rollers.  These bearings are lightweight and compact, making them ideal for applications with limited space and weight constraints.  They are typically used in applications where the shaft has not been hardened and ground, and where the housing bore can be used as a needle roller raceway.

Needle roller bearings with and without cage

 Filled needle roller bearings are designed with solid lubricant or grease filling to provide long-term, maintenance-free operation.  These bearings can be equipped with a cage to hold the needle rollers in the correct position, or they can be designed without a cage for applications where space is limited and the use of a cage is impractical.  Filled needle roller bearings are suitable for applications where frequent relubrication is not possible or feasible.

 Needle roller bearings of various types are widely used in various industries, including automotive, aerospace, construction and industrial machinery.  In the automotive industry, needle roller bearings are used in drivetrains, engines and driveshafts to support high radial loads and provide efficient power transmission.  In the aerospace industry, needle roller bearings are used in aircraft engines, landing gear and control systems to withstand high speeds and extreme operating conditions.  In the construction industry, needle roller bearings are used in heavy machinery such as excavators and cranes to support heavy loads and provide reliable performance.

 In summary, it is critical to use various types of needle roller bearings in many mechanical systems, and understanding the different types available can help select the most appropriate option for a specific application.  Whether open drawn cup needle roller bearings, closed drawn cup needle roller bearings, needle roller bearings with inner ring, needle roller bearings without inner ring and cage, or filled with or without cage Needle roller bearings, each type has its own unique features and characteristics. Advantages that make them suitable for different applications.  By selecting the correct type of needle roller bearings, engineers and designers can ensure optimal performance, reliability and service life of mechanical systems.

NK series: NK5/10, NK12/16, NK25/20, etc.

NA series: NA4900, NA6910, NA4826, etc.

HK series: HK0509, HK0708, HK0911, HK10*16*10,HK12*18*120,etc.

RNA series: RNA4900, RNA6910, RNA4826, etc. 

In addition to the above models, we can also provide the following models for your reference.

AXK 5578、AXK 2542、AXK57110、AXK80105,etc.