Designation system

The designations of indexing roller units consist of a basic designation and potential suffixes.
Basic designation
Drawing number identification

BC2B

Based on double row full complement cylindrical roller bearing
A drawing number identification is following the BC2B.
BCZ-Based on double or four-row full complement cylindrical roller bearing
A drawing number identification is following the BCZ-.
BNTBBased on a four-row full complement cylindrical roller bearing
A drawing number identification is following the BNTB.

Suffixes
A, B, CDeviating or modified internal design
HB1Bainite-hardened inner and outer rings
HB2Bainite-hardened outer ring
SKF logo