Supplementary designations

The designation suffixes used to identify certain features of SKF backing bearings are explained in the following.

A, B, CModifications to the original design. Combinations of these letters are also used, e.g. AC. The actual modification is specific to the individual backing bearing and reference must be made to the drawing
HB1Inner and outer rings bainite hardened
HB2Outer ring bainite hardened
VFull complement bearing (no cage)
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