Talk:Back-up ring
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[edit]Rather than using the wording "pinched" or "torn", I think the phrase "migration of the seal into the gap" is more accurate from an engineering perspective. As a reference, Parker uses "migration of the O-ring into the sealing gap" in their product literature. See http://www.parker.com/portal/site/PARKER/menuitem.de7b26ee6a659c147cf26710237ad1ca/?vgnextoid=fcc9b5bbec622110VgnVCM10000032a71dacRCRD&vgnextdiv=&vgnextcatid=7765&vgnextcat=PARBAK+BACK-UP+RINGS&Wtky=SEALS&vgnextfmt=EN --Westwind273 (talk) 20:21, 31 January 2012 (UTC)