Rotary Seal Design Guide - Seals Unlimited

Parker Oil SealsSpring-Loaded Oil Retention ProfilesCatalog EPS 5350/USA66TBTCSBSCSpring-Loaded Oil Retention ProfilesTB, SB — Metal case with ParKote bore sealant orground OD. Most common and economical.TC, SC — Rubber covered OD for improved OD sealingand soft alloy housing.TA, SA — Double case with ParKote bore sealant orground OD. Structural rigidity, blind shaft installation.ApplicationGeneral purpose, spring-loaded design. Most commonlyused for oil or grease retention. Double lip profiles havesecondary lip for light dust and fluid exclusion.Technical DataOperating Temperature RangeNBR: -20 to 250 °F (-29 to 121 °C)FKM: -40 to 400 °F (-40 to 204 °C)Shaft Surface SpeedTB, TC, TA — Up to 2500 fpm (12.7 m/s)SB, SC, SA — Up to 3200 fpm (16.3 m/s)Maximum Pressure0 to 7 psi (0 to 0.48 bar), depending on shaft speedShaft Size Range0.250 to 10.000 inches (5 to 260 mm)Important: For full listings of standard sizes, see AppendicesB and C.TASAFor additional case profiles/materialsoptions, see Page 6-7.03/28/066-12 Parker Hannifin CorporationEPS DivisionToll Free: (800) 233-3900www.parkerseals.com