Page 857 - Rollingbearings

Designation system

Designation system

Group 1 Group 2 Group 3 / Group 4
4.1 4.2 4.3 4.4 4.5 4.6

Preixes
ZE Bearing with SensorMount feature

Basic designation
Listed in table 4, page 30

Sufixes
Group 1: Internal design

Group 2: External design (seals, snap ring groove, etc.)
-CS5, -2CS5 Contact seal, HNBR, on one or both sides
-NS, -2NS Contact seal, NBR, on one or both sides
K Tapered bore, taper 1:12
K30 Tapered bore, taper 1:30

Group 3: Cage design
– Stamped steel cage, roller centred
M Machined brass cage, roller centred
MB(1) Machined brass cage, inner ring centred
TN9 Glass ibre reinforced PA46 cage, roller centred
V Full complement of rollers (no cage)

Group 4.1: Materials, heat treatment
HA3 Case-hardened inner ring

Group 4.2: Accuracy, clearance, preload, quiet running
C08 Geometrical tolerances to class P5
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

Group 4.3: Bearing sets, matched bearings 10

Group 4.4: Stabilization
S3 Bearing rings heat stabilized for operating temperatures ≤ 300 °C (570 °F)

Group 4.5: Lubrication
GEM9 Filled to 70 – 100% with SKF LGHB 2 grease

Group 4.6: Other variants

VE240 Bearing with shorter rollers
VG114 Surface-hardened stamped steel cage
VM118 Full complement bearing without retaining ring
VT143 Filled to 25 – 45% with SKF LGEP 2 grease

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