(Bearing Specialists Association: Glen Ellyn, IL) -- The Bearing Specialists Association (BSA) has identified “Axis of Rotation Metrology” as the second educational publication in its series of Bearing Briefs of the Month. Bearing Briefs are just one of a variety of education and training programs and publications provided by the association.

The “Axis of Rotation Metrology"”is an educational article summarizing the groundwork already established for using spindle metrology to deterministically improve manufacturing processes.

The article includes information on how testing is accomplished, the standards which most-specifically refer to the quality of precision spindles, and synchronous and asynchronous error motions. The article warns bearing sellers that error analysis data encompasses all spindle errors, including structural errors due to temperature and from external vibrations. Therefore, bearing and spindle manufacturers are advised to “take care that the error motions of your spindles are not limiting the quality of the bearings you manufacture.”

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