Enduro Bearings S71806 LLB - ABEC 3 - Stainless Steel ...
This means the price and precision difference between ABEC 1 and ABEC 3 is less than ABEC 3 and ABEC 5. When precision machining of bearings was in its infancy, only ABEC 1 bearings were consistently produced. As machining prowess and technology increased, so did the consistency in super precision bearing machining and manufacturing.
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