Spherical roller bearing structure and Application

        Spherical roller bearings accommodate misalignment between the shaft and housing without increasing friction or reducing bearing service life.Optimized internal geometry within the available cross section provides maximum radial and axial load carrying capacity.

The spherical roller bearing is particularly suited to heavy mechanical applications where it is difficult to align the seats and radial loads are high. It is well suited to severe operating conditions,involving impact or vibration (crushers, vibrating screens, heavy handling machinery, etc.).Insensitive to misalignment caused by shaft or housing deflections as a result of heavy loads.The favorable design characteristics combined with simplified mounting procedures enable more efficient and compact machine designs.

The designation suffixes used to identify certain features of spherical roller bearings

are explained in the following.

C2 Radial internal clearance smaller than Normal

C3 Radial internal clearance greater than Normal

C4 Radial internal clearance greater than C3

C5 Radial internal clearance greater than C4

C08 Increased running accuracy to ISO tolerance class 5

C083 C08 + C3

C084 C08 + C4

2CS Sheet steel reinforced contact seal of acrylonitrile-butadiene rubber

(NBR) on both sides of the bearing. Grease fill 25 to 35 % with LGEP 2 grease. Annular

groove and three lubrication holes in the outer ring.

2CS2 Sheet steel reinforced contact seal of fluorine rubber (FKM) on both

sides of the bearing. Grease fill 70 to 100 % with a poly urea high

temperature grease. Annular groove and three lubrication holes

in the outer ring 2CS5 Sheet steel reinforced contact seal of hydrogenated contractile-butadiene rubber (HNBR) on both sides of the bearing. Grease fill 70 to 100 % with a poly urea high

temperature grease. Annular groove and three lubrication holes in the outer ring

HA3 Case hardened inner ring

K Tapered bore, taper 1:12

K30 Tapered bore, taper 1:30

P5 Dimensional and running accuracy to ISO tolerance class 5

P6 Dimensional and running accuracy to ISO tolerance class 6

P62 P6 + C2

VA405 Bearing for vibratory applications

VA406 Bearing for vibratory applications

with PTFE-coated bore

VE552(E) Outer ring with three equally

spaced threaded holes in one side

face to accommodate hoisting tackle; the E indicates that appropriate eye bolts are supplied with

the bearing

VE553(E) Outer ring with three equally spaced threaded holes in both side faces to accommodate hoisting tackle; the E indicates that appropriate eye bolts are supplied with the bearings

VG114 Surface hardened pressed steel cages

VQ424 Running accuracy better than C08

VT143 Grease fill 25 to 35 % with LGEP 2 grease

W No re lubrication facility in the outer ring

W20 Three lubrication holes in the outer ring

W26 Six lubrication holes in the inner ring

W33 Annular groove and three lubrication holes in the outer ring

W64 Solid Oil filling

W77 Plugged W33 lubrication holes

W513 W26 + W33

235220 Case hardened inner ring with a helical groove in the bore

Spherical roller bearing structure and Application as following: