Classification and structural characteristics of Machined-ring needle bearing.

1. Machined-ring needle bearing with rib
 Needle bearing is a single or double row unit consisting of a machined ribbed outer ring, needle and cage assembly and a movable inner ring. These bearings are open and sealed.
In these bearings, the roughness and geometric accuracy of the slot plate are optimized. This results in higher load capacity and longer life.

2. Machined-ring needle bearing without rib

    Ribless Machined-ring needle bearing is single or double row units consisting of a ribbed machined outer ring, needle and cage assembly and a movable inner ring.
The bearing is not self-retaining. This means that the outer ring, the needle roller and cage assembly and the inner ring can be matched to each other.
    In these bearings, the roughness and geometric accuracy of the slot plate are optimized. This results in higher load capacity and longer life.

3. Self-aligning Machined-ring needle bearing
    The self-aligning Machined-ring needle bearing is a unit consisting of a stamped outer ring, a plastic support ring with a concave internal structure, an outer ring needle with a spherical outer surface, and a cage assembly and a movable inner ring.
The bearings compensate for static shaft misalignment and can tolerate misalignment of the shaft relative to the housing.
The self-aligning Machined-ring needle bearing is firmly positioned in the housing bore. Therefore, it is possible to drill holes simply and economically.
In these bearings, the roughness and geometric accuracy of the slot plate are optimized. This results in higher load capacity and longer life.

4. Combined Machined-ring needle bearing
    The combined needle bearing is a unit consisting of a radial needle bearing with rolling bearing elements and supports axial loads.
    In these bearings, the roughness and geometric accuracy of the slot plate are optimized. This results in higher load capacity and longer life.

5. Inner ring of Machined-ring needle bearing
    The inner ring is made of hardened rolling bearing steel with precision machined or ground slots.
    Machined-ring needle bearing is used to:
    Shafts cannot be used as slot plates with needle roller and cage assemblies, open drawn cup needle roller bearings, closed cup needle roller bearings and needle bearings

Machined-ring needle bearing must have a wider inner ring combination to assist axial displacement of the shaft associated with the housing
The sealing lip requires an optimal running surface.
Inner ring, precision machining

In the inner ring IR, the slot plate is precision machined. The chamfer on the end face can be easily inserted into the bearing and prevent damage to the sealing lip of the bearing. The inner ring is provided with and without lubrication holes.

Inner ring of Machined-ring needle bearing
In the inner ring IR, the slot plate is ground. The end faces are turned over and the edges are broken. These rings are more tolerant than the IR series of rings and are therefore suitable for applications that allow for greater width tolerances and less need for axial deflection.

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