SKF spherical roller bearing make up the code

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SKF spherical roller bearing make up the code

Source: China Bearing Network Time: 2013-02-20
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SKF spherical roller bearings make up the code; the suffix is ​​used to identify some of the characteristics of spherical roller bearings; in the meantime it contains the open drawing of SKF spherical roller bearings; sealed spherical roller bearings; bearings for oscillating machinery:
C2: radial clearance is smaller than the general group
C3: Radial clearance is larger than the general group
C4: Radial clearance is greater than C3
C5: radial clearance is greater than C4
C08: Conversion accuracy meets ISO public service level 5
C083: C08+C3
C084: C08+C4
2CS: Hydrogenated nitrile rubber (NBR) touch seal with steel frame on both sides of the bearing. The outer ring has a smooth groove and three smooth holes; and is covered by a plastic belt.
2CS2: Fluororubber (FPM) touch seal ring with steel frame on both sides of the bearing. The outer ring has a smooth groove and three smooth holes; and is covered by a plastic belt.
2CS5: Hydrogenated nitrile rubber (HNBR) touch seal with steel frame on both sides of the bearing. Others are the same as 2CS2
HA3: outer hardened inner ring
K: tapered hole; taper: 1:12
K30: tapered hole; taper: 1:30
P5: Scale accuracy and rotation accuracy meet ISO public service level 5
P6: Scale accuracy and rotation accuracy meet ISO public service level 6
P62: P6+C2
VA405: Bearing for oscillating machinery; cage with external hardening
VA406: VA405 and inner hole with polytetrafluoroethylene (PTFE) coating
VE552(E): Three evenly distributed threaded holes on one side of the outer ring to connect the lifting equipment, E indicates that the bearing is equipped with eyebolts
VE553 (E): same as VE552; but with threaded holes on both sides
VG114: Hardened stamped steel cage
VQ424: Rotation accuracy is higher than C08
W: no smooth groove and smooth hole in the outer ring
W20: Three smooth holes in the outer ring
W26: inner ring with six smooth holes
W33: outer ring with smooth groove and three smooth holes
W64: Bearings marked with solid oil
W77: same as W33; but smooth hole with plug
W513: W26+W33
235220: inner hardened inner ring; inner hole with spiral groove.
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