Single-row cylindrical roller bearings

Single-row cylindrical roller bearings are a type of rolling-element bearing that uses cylindrical rollers to support radial loads. They are commonly used in industrial machinery and equipment, such as electric motors, pumps, and gearboxes. Single-row cylindrical roller bearings are designed to withstand high radial loads and can also accommodate axial loads in one direction.

The design of single-row cylindrical roller bearings consists of an inner ring, an outer ring, and cylindrical rollers. The rollers are guided by the inner and outer rings and are separated by a cage, which helps to maintain proper roller spacing and reduce friction. The raceways of the inner and outer rings are precision-ground to ensure proper alignment and smooth operation.

One of the main benefits of single-row cylindrical roller bearings is their ability to handle high radial loads. This is due to the large contact area between the rollers and the raceways, which distributes the load evenly across the bearing. Additionally, the use of a cage helps to maintain proper roller spacing and reduces friction, which further enhances the bearing's load-carrying capacity.

Another benefit of single-row cylindrical roller bearings is their ability to accommodate axial loads in one direction. This is achieved through the use of a modified raceway geometry on one of the rings, which allows for axial displacement of the bearing. However, single-row cylindrical roller bearings are not designed to handle axial loads in both directions.

Single-row cylindrical roller bearings are available in various designs and configurations to meet the needs of different industrial applications. Some common types include:

NU series bearings: These bearings have a fixed outer ring and a separable inner ring, which allows for easy mounting and dismounting.

NJ series bearings: These bearings have a fixed inner ring and a separable outer ring, which allows for easy mounting and dismounting.

NUP series bearings: These bearings have a fixed outer ring and a separable inner ring, with a modified raceway geometry to accommodate axial displacement.

In conclusion, single-row cylindrical roller bearings are a reliable and efficient choice for industrial machinery and equipment. With their ability to handle high radial loads and accommodate axial loads in one direction, they are a versatile option for a wide range of applications. With their various designs and configurations, single-row cylindrical roller bearings can meet the needs of many different industrial applications.