The NSK range of angular contact ball bearings has been designed to meet the increasingly demanding requirements of original equipment manufacturers.
These bearings have a contact angle to sustain significant axial loads in one direction together with radial loads.
Furthermore, since an axial component is generated when a radial load is applied, these bearings are generally used in pairs, triplex sets, quadruplex sets, or multiplex sets.
NSK offers one of the most comprehensive ranges of angular contact ball bearings available.Features
This ball bearing type is recommended when the shaft and housing alignment is complex and the shaft may flex. The outer ring has a spherical raceway, and its center of curvature coincides with that of the bearing; therefore, the axis of the inner ring, balls, and cage can deflect to some extent around the bearing center. Pressed steel cages are usually used.
Since the contact angle is slight, the axial load capacity is low. Under normal loads, the permissible dynamic misalignment is approximately 0.07 to 0.12 radian (4 to 7 degrees).
However, such an angle may not be possible depending on the surrounding structure.
Thrust ball bearings are classified into those with flat seats or aligning seats depending on the shape of the outer ring seat (housing washer). They can sustain axial loads but no radial loads.
For Single-Direction Thrust Ball Bearings, pressed steel cages and machined brass cages have usually used. The cells in Double-Direction Thrust Ball Bearings are the same as those in Single-Direction Thrust Ball Bearings of the same diameter series.Features
The cylindrical rollers are in linear contact with the raceways in bearings of this type. They have a high radial load capacity and are suitable for high speeds.
Bearings of this type use conical rollers guided by a back-face rib on the cone. These bearings can take high radial loads and axial loads in one direction.
In the HR series, the rollers are increased in size and number, giving them an even higher load capacity. They are generally mounted in pairs like single-row angular contact ball bearings.
In this case, the proper internal clearance can be obtained by adjusting the axial distance between the cones or cups of the two opposed bearings. Since they are separable, the cone assemblies and cups can be mounted independently.
Using bearings with oil grooves and holes, experts suggest providing an oil groove in the housing bore since the depth of the groove in the bearing is limited.
Needle roller bearings are a bearing that is classified as either radial or thrust depending on the direction of the load being supported. Needle roller bearings include bearings whose rollers slightly exceed the size range of needle rollers as stipulated by ISO.
Needle roller bearings include drawn cup and solid radial bearings and application-specific cam followers and roller followers. Thrust bearings have thrust needle bearings.