PBA Catalog
Needle Roller Bearings
Needle Roller Bearings With Ribs (
)

- Needle roller bearings are single or double row units comprising machined outer rings with ribs, needle roller and cage assemblies and removable inner rings. The bearings are available in open and sealed versions.
- Needle roller bearings with ribs are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimised. This gives higher load carrying capacity and longer life
Download Official INA Roller Bearings Catalogs
Needle Roller Bearings Without Ribs (
)

- Needle roller bearings without ribs are single or double row units comprising machined outer rings without ribs, needle roller and cage assemblies and removable inner rings
- The bearings are not self-retaining. This means that the outer ring, needle roller and cage assembly and inner ring can be fitted independently of each other
- Needle roller bearings without ribs are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimised. This gives higher load carrying capacity and longer life
Download Official INA Roller Bearings Catalogs
Aligning Needle Roller Bearings (
)

- Aligning needle roller bearings are units comprising drawn outer cups, plastic support rings with a concave inner profile, outer rings with a spherical outside surface, needle roller and cage assemblies and removable inner rings
- The bearings can compensate static shaft misalignments and can thus tolerate misalignment of the shaft relative to the housing
- Aligning needle roller bearings are firmly seated in the housing bore. The bore can therefore be produced easily and economically
- Aligning needle roller bearings are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimised. This gives higher load carrying capacity and longer life
Download Official INA Roller Bearings Catalogs
Combined Needle Roller Bearings (
)

- Combined needle roller bearings are units comprising radial needle roller bearings with a rolling bearing component capable of supporting axial loads
- Combined needle roller bearings are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimised. This gives higher load carrying capacity and longer life
Download Official INA Roller Bearings Catalogs
Inner Rings (
)

- Inner rings are made from hardened rolling bearing steel and have precision machined or ground raceways
- In inner rings IR, the raceway is precision machined. Chamfers on the end faces allow easy insertion into the bearings and prevent damage to the seal lips of the bearings. The inner rings are available with and without a lubrication hole
- In inner rings LR, the raceway is ground. The end faces are turned and the edges are broken. These rings have larger tolerances than the rings of series IR. They are therefore suitable for applications that permit larger tolerances for width and less demanding requirements for axial runout
