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Rulmenti radiali
Rulmenti axiali
Rulmenti radiali axiali
Componente
 
Variante constructive rulmenti cu role sferice SKF
E design (d ≤ 65 mm)
Guide ring centred on the inner ring, two
window-type steel cages.
E design (d > 65 mm)
Guide ring centred on the cages, two windowtype steel cages.
EJA design
Guide ring centred on the outer ring raceway,
two window-type steel cages.
C, CC, EC and ECC designs
Guide ring centred on the inner ring, two
window-type steel cages.
CCJA design
Guide ring centred on the outer ring raceway,
two window-type steel cages.
CA, CAF, ECA and ECAF designs
Guide ring centred on the inner ring, retaining
flanges on the inner ring, one-piece machined
cage of brass or steel (suffix F).
CAFA and CAMA designs
Guide ring centred on the inner ring, retaining
flanges on the inner ring, one-piece machined
cage of steel (CAFA) or brass (CAMA), centred
on the outer ring raceway.
SKF Explorer
The designations of SKF Explorer bearings
are printed in blue in the product tables.
Cylindrical or tapered bore
SKF spherical roller bearings are available
with either a cylindrical or tapered bore. The
tapered bore of bearings in the 240, 241, 248
and 249 series is 1:30. The tapered bore of
bearings in the other series is 1:12.
Annular groove and lubrication holes
Efficient lubrication of SKF spherical roller
bearings is facilitated by either
groove (E design or suffix W33) or
groove (suffix W20).
Dimensions
The boundary dimensions of SKF spherical
roller bearings with or without seals are in
accordance with ISO 15:1998, except for the
width of sealed bearings in the BS2-22
series. These are basically bearings in the
222 E or 222 CC series, but are slightly wider
to integrate the seals.
The designation suffixes used to identify certain features of SKF 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.
SKF LGEP 2 grease. Annular
groove and three lubrication holes
in the outer ring.
2CS2 Sheet steel reinforced contact seal
of fluoro rubber (FKM) on both
sides of the bearing. Grease fill 70
to
temperature grease. Annular
groove and three lubrication holes
in the outer ring
2CS5 Sheet steel reinforced contact
seal of hydrogenated acrylonitrile-butadiene rubber (HNBR) on
both sides of the bearing. Grease
fill
70
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 bearings
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
LGEP 2 grease
W No relubrication 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

 

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