SKF full complement cylindrical roller bearings designation

SKF full complement cylindrical roller bearings designation follow a system that may consist of a basic designation with or without one or more prefixes and/or suffixes.

1 Prefixes (n.a.) 
2 Basic designation
Listed in SKF bearing designation
3 Suffixes - Internal design
CV Modified internal design, full complement roller set
4 Suffixes - External design (seals, snap ring groove etc.)(n.a.)
5 Suffixes - Cage design
V Full complement of rollers (no cage)
VH Full complement of rollers (no cage), self-retaining
6.1 Suffixes - Materials, heat treatment
HA1 Case-hardened inner and outer rings
HB1 Bainite-hardened inner and outer rings
L4B Bearing rings and rollers black oxidized
6.2 Suffixes - Accuracy, clearance, preload, quiet running
CN Normal radial internal clearance; only used together with an additional letter that identifies a reduced or displaced clearance range
  • H = Reduced clearance range corresponding to the upper half of the actual clearance range
  • L = Reduced clearance range corresponding to the lower half of the actual clearance range
  • M = Displaced clearance range comprising the upper half of the actual clearance range plus the lower half of the next larger clearance range
The above letters are also used together with the clearance classes C2, C3, C4 and C5, e.g. C2H
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
6.3 Suffixes - Bearing sets, matched bearings
DR Set of two matched bearings
TR Set of three matched bearings
QR Set of four matched bearings
6.4 Suffixes - Stabilization (n.a.)
6.5 Suffixes - Lubrication (n.a.)
6.6 Suffixes - Other variants (n.a.)

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