Rotary Seal Design Guide - Seals Unlimited

ProTech Bearing IsolatorsSM ProfileCatalog EPS 5350/USA88SM — Split MillenniumDesignRetain: Grease and oil splash(operating oil level in cavity betweenseal and bearing must remain belowinboard oil drain-back port of seal)Exclude: Heavy water spray and drycontaminants from bearing cavityEquipment: For field retrofits whereequipment can not be uncoupled ordisassembled. Requires no wearsleeves or shaft refurbishment. Motors,pumps, mixers, gearboxes, blowers andcustom equipmentTechnical DataTotal Eccentricity: 0.020" (0.51 mm)Shaft Speed: Up to 3,000 fpm(15 m/s) 1Pressure: 0 psi/barTemperature Range: -40 to 250 °F(-40 to 121 °C)Axial Movement: 0.020" (0.51 mm)Special designs up to 0.070" (1.78 mm)Shaft/Bore: Tolerances: ± .002"(± .05 mm) Special designs availableSeal MaterialStandard: BronzeOptional: 302 SS, 304 SS, 316 SS,Carbon SteelO-Ring MaterialStandard: FKMOptional: NBR, FDA silicone, EPDM,Aflas ®Table 8-27. SM Mounting and LubricationMountingLubricationPosition Grease Oil DryHorizontal Y Y Y YVertical Up Y Y Y YVertical Down Y* Y N Y* Locking collar may be required.Dimensions — SM ProfileTable 8-28. SME Standard Dimensions — Inch/FractionalType“A” ShaftDiameterRange Inch“B” Bore DiameterRange IsShaft Diameter“A” + Min-Max“C” FlangeDiameter =“B” +1 Contact factory for speeds over 3,000 fpm (15 m/s).2 Shaft diameters under 1.575" (40 mm) and cross-sections under 0.433"(11 mm) have standard inboard oil splash grooves.Note: Cross-Section = (Bore – Shaft) / 23 May be larger for small cross-sections. Consult factory for dimensions.4 Contact factory for requirements outside of standard dimensions listed above.Important: Contact factory for available sizes.“D” InBoreDepth“E” OverallSeal WidthSME 2 0.610 – 1.575 0.709 – 1.575 0.236 3 0.276 1.078SME 1.576 – 2.362 0.709 – 1.575 0.236 3 0.315 1.117SME 2.363 – 3.150 0.709 – 1.575 0.236 3 0.354 1.156SME 3.151 – 5.118 0.787 – 1.575 0.236 3 0.354 1.257SME 5.119 – 10.000 4 0.945 – 1.575 0.236 3 0.433 1.436Table 8-29. SMM Standard Dimensions — MetricTypeC B A“A” ShaftDiameterRange MetricE“B” Bore DiameterRange IsShaft Diameter“A” + Min-Max“C” FlangeDiameter =“B” +“D” InBoreDepthInboard OilDrain-back Port“E” OverallSeal WidthSMM 2 15.5 – 40.0 18.0 – 40.0 6.0 3 7.0 27.4SMM 40.1 – 60.0 18.0 – 40.0 6.0 3 8.0 28.4SMM 60.1 – 80.0 18.0 – 40.0 6.0 3 9.0 29.4SMM 80.1 – 130.0 20.0 – 40.0 6.0 3 9.0 31.9SMM 130.1 – 254.0 4 24.0 – 40.0 6.0 3 11.0 36.5D03/28/068-28 Parker Hannifin CorporationEPS DivisionToll Free: (800) 233-3900www.parkerseals.com