High speed Self-aligning Spherical Roller Bearing 23068CCK/W33

Original SKF Brand Spherical Roller Bearing 23068CCK/W33 , Made In Sweden

Specifications:

Model	SKF	NSK	FAG
23068
23068CA	23068BD1	23068CC	23068CAE4
23068K
23068/W33
23068CAK
23068CAC/W33	23068BD1	23068CC/W33	23068CAE4
23068CACK/W33	23068BKD1	23068CCK/W33	23068CAKE4
23068CACK/W33+H3068	23068BKD1;H3068	23068CCK/W33+OH3068H	23068CAKE4+H3068

Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis (fig. 1.) The centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning (fig. 2) and insensitive to misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions.

Bearing performance is not only determined by load or speed ratings. There are a number of other factors that contribute to bearing performance. To a large extent, performance is influenced by the geometry of the rollers, raceways and cages, the heat treatment, as well as the surface finish of all contact surfaces. Main factors which influence SKF spherical roller bearing performance include, but are not limited to:

·         Symmetrical rollers 
Symmetrical rollers self-adjust (fig. 3), providing optimal load distribution along the roller length. This keeps stresses low under all load conditions and extends bearing service life.

·         Roller tolerances 
The rollers in an SKF spherical roller bearing are manufactured to extremely tight tolerances for dimension and form. Each roller is virtually identical in size and shape to the other rollers in the set. This optimizes load distribution over the rollers to maximize bearing service life.

·         Special roller profile 
The roller profile determines the stress distribution in the roller/raceway contact area. The special profile distributes loads more evenly along the rollers and prevents stress peaks at the roller ends to extend bearing service life (fig. 4).

·         Self-guiding rollers and a floating guide ring between the two rows of rollers 
Self-guiding rollers reduce friction and frictional heat (fig. 5). A floating guide ring guides unloaded rollers so that they enter the load zone in the optimal position.       

·         Metal cages 
All spherical roller bearings contain strong metal cages. This enables them to tolerate high temperatures and all lubricants.