SKF four-row tapered roller bearings are produced with dimensional accuracy corresponding to
  • Normal tolerances for metric bearings
  • Normal tolerances for inch bearings.
The running accuracy of all bearings is to tolerance class P5 specifications.
The Normal and class P5 tolerances for the metric bearings conform to ISO 492-2014. The values of the Normal tolerances for inch bearings follow tolerance class 4 according to ANSI/ABMA Standard 19.2-1994. The ISO Standard 578:1987, which also covered this tolerance class for inch bearings was withdrawn in 1997.
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