SP R.20

4.2 Unit Conversion. ... (Torx) head configuration. [Technical inquiry 612-01-04] ... NOTE 2 - Refer to Annex XXX for torsional analysis flow chart. 6.8.1.1 In the design of rotor-bearing systems, consideration shall be given to all potential sources of periodic forcing phenomena (excitation) which shall include, but are not limited to, the ... ................
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