Q8. What Are ABEC And ISO Precision Level Equivalencies?

ABEC precision levels, ABEC-1, ABEC-3, ABEC-5, ABEC-7, and ABEC-9 are the equivalent to ISO precision levels P0, P6, P5, P4, and P2 respectively.

See AST's white paper on this subject for an indepth discussion on closures entitled, "Bearing Tolerances and Precision Levels - ABEC Tolerances."

 

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To learn more about what the ISO 9001 standard is, the differences between the 2015 and 2008 versions, and how AST verifies customer satisfaction: Learn About AST Bearings’ certification to ISO 9001:2015

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