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.

X-life

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.

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.

X-life

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.

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.

X-life

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.

Inner rings

Inner rings are made from hardened rolling bearing steel and have precision machined or ground raceways.

They are used where:

• The shaft cannot be used as a raceway with needle roller and cage assemblies, drawn cup needle roller bearings with open ends, drawn cup needle roller bearings with closed end and needle roller bearings
• Needle roller bearings must be combined with wider inner rings in order to facilitate axial displacement of the shaft in relation to the housing
• Optimum running surfaces are required for the seal lips.

Inner rings, precision machined

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.

Inner rings, ground

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.

Drawn cup needle roller bearings with open ends/closed ends

Drawn cup needle roller bearings with open ends and with closed end are units comprising thin-walled drawn outer rings and needle roller and cage assemblies. Drawn cup need roller bearings with open ends are also available in full complement versions. The majority of the bearings are single row designs.

Drawn cup needle roller bearings with open ends and with closed end are available in open and sealed versions. Due to the thin-walled outer drawn cup and the absence of an inner ring, drawn cup needle roller bearings with open ends and with close end have an extremely low radial section height. They have very high load carrying capacity, are suitable for high speeds and can be easily fitted. If shoulders, snap rings etc. are not used for axial location, the housing bore can be produced easily and particularly economically.

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.

X-life

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.