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You are here: Home / Featured / Friday Bearing Fast FAQ 6:

Friday Bearing Fast FAQ 6:

December 4, 2015 By Mike Santora

Koyo-MOA-post-imageWhat is a minute of arc (MOA) and why is it important for bearings?

A circle is divided into 360° (angular segments) around the circumference and each degree is further divided into 60 minutes (smaller angular segments). A minute of arc is a unit of angular measurement equal to 1/60 of one degree. As one degree is 1/360 of a circle, this results in one minute of arc equal to 1/21,600 minutes of a circle.
This unit of measure is important to bearings since some designs (i.e. tapered roller) specify maximum allowable misalignment of 3 minutes.

Koyo
www.jtekt-na.com

Filed Under: Featured Tagged With: Koyo

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