Needle roller bearings

Needle roller bearings are solutions chosen wherever space-saving design, high radial load capacity, and stable performance at high rotational speeds are of paramount importance.

The Marat store offers products selected with real-world operating conditions in mind, rather than solely based on dry technical parameters.

Needle roller bearing – what sets it apart

A needle roller bearing is a specific type of cylindrical roller bearing where the rolling elements are long, thin rollers—needles. Their diameter is small, while their length is several times larger, which allows for a very high load capacity with a minimal cross-section. Consequently, needle roller bearings are perfectly suited for compact designs where there is no room for conventional solutions.

Depending on the design variant, a needle roller bearing can come with or without a cage. 

Needle roller bearings – practical applications

Needle roller bearings accommodate exclusively radial loads, yet they do so exceptionally effectively. The high load capacity results both from their design and the proper hardening of the components. This solution is eagerly deployed in engines, gearboxes, drivetrain mechanisms, and smaller devices operating at high speeds.

Ideal for systems where the following factors matter:

• small outside diameter,
• high rigidity,
• continuous operation without loss of stability,
• ability to easily match the shaft.

Needle roller bearings catalog – variants and executions

In the Marat needle roller bearings catalog, you will find various types, including thrust, angular contact ball, thrust ball, or thrust cylindrical roller combinations. The needle roller bearings catalog has been prepared to enable quick comparison of available solutions and matching the product to a specific application.

Some models do not feature an inner ring, which allows for direct cooperation with the shaft and an even greater reduction in the dimensions of the entire bearing arrangement. This is precisely why the needle roller bearing is so frequently utilized by designers and maintenance technicians.

Dimensions of needle roller bearings and their selection

Correct product selection requires taking several key parameters into account. Needle roller bearing dimensions should be matched not only to the shaft and housing diameters but also to the load, rotational speed, and operating conditions. In the Marat catalog, each item contains clear technical data, allowing needle roller bearing dimensions to be quickly cross-referenced with the requirements of a specific system.

Both the needle roller bearing dimensions and design information help prevent errors during the design phase or when replacing components.

Needle roller bearings product line at Marat

In the Marat store, you will find needle roller bearings designed for intensive exploitation, complying with current quality standards. 

Check out the needle roller bearings, compare the available models, and select the solution that best matches your current requirements.

FAQ

What distinguishes a needle roller bearing?

A needle roller bearing features a very slim design and a large number of thin rollers, allowing it to accommodate heavy radial loads with minimal outside dimensions.

For what applications are needle roller bearings used?

Needle roller bearings are utilized in applications such as engines, gearboxes, and compact drivetrain systems operating at high rotational speeds.

Do needle roller bearings accommodate axial loads?

No, needle roller bearings are designed exclusively to accommodate radial loads and are not suited to handle axial forces.

How to select a needle roller bearing – dimensions and design?

When selecting a bearing, shaft and housing dimensions, rotational speed, and operating conditions must be taken into account. This data is readily available in the needle roller bearings catalog at the Marat store.