ISO/TR 17243-2:2017 pdf free.Machine tool spindles — Evaluation of spindle vibrations by measurements on non-rotating parts — Part 2: Direct-driven spindles and belt-driven spindles with rolling element bearings operating at speeds between 600 r/min and 30 000 r/min. ISO/TR 17243-2 information on how to assess the severity of machine tool spindle vibrations measured on the spindle housing. It gives specific...