Rotary Seal Design Guide - Seals Unlimited

Catalog EPS 5350/USAFC and FH ProfilesFlexiSeal® RotarySealHeightGrooveWidthExtended Heel OptionAll part numbers call for the standard seal height forpressures below 3000 psi (207 bar).The heel of a FlexiSeal can be extended to increaseextrusion resistance simply by changing the seal heightcallout in the part number.Just find where the seal height dimension for the groovewidth is designated in the gland tables and switch to thelonger extended heel callout in the part number.Example: Inch0 5 0 2 FC C 1 8 7 0 4 0 0 0 2 6 0 H C MTable 11-7. Inch/Fractional Seal HeightCalloutsRadialCross-SectionStandardHeelCalloutExtendedHeelCallout062 N/A 140093 N/A 165125 160 220187 260 310250 355 450Table 11-8. Metric Seal Height CalloutsRadialCross-SectionRotary ApplicationStandardHeelCalloutExtendedHeelCallout0200 N/A 0360250 N/A 0420400 043 0560500 066 0790700 090 114Standard Seal Height0 5 0 2 FC C 1 8 7 0 4 0 0 0 3 1 0 H C MExample: MetricExtended Heel Seal HeightM 5 0 2 FC C 0 5 0 0 0 3 3 0 1 0 6 6 H C MStandard Seal HeightM 5 0 2 FC C 0 5 0 0 0 3 3 0 1 0 7 9 H C MExtended Heel Seal HeightImportant: For full listings of standard sizes, see Pages B-93and C-22.Note: FH profiles are available in extended heeloption only.111103/28/0611-10 Parker Hannifin CorporationEPS DivisionToll Free: (800) 233-3900www.parkerseals.com