{"product_id":"oil-seals-rotary-shaft-seals","title":"Oil Seals \u0026 Rotary Shaft Seals (Radial Lip Seals)","description":"\u003ch3\u003eOil Seals \u0026amp; Rotary Shaft Seals (Radial Lip Seals)\u003c\/h3\u003e\n\u003cp\u003eKaybin manufactures custom oil seals and rotary shaft seals (radial lip seals) for lubricant retention and contamination exclusion in rotating industrial equipment. Seals are produced to confirmed shaft diameter, housing bore and seal width (ID × OD × W) and matched to lubricant type, shaft speed, temperature and environmental exposure.\u003c\/p\u003e\n\u003cp\u003eThis page covers rotary shaft sealing only for gearboxes, pumps, motors and rotating assemblies — not hydraulic cylinder piston, rod or wiper seals (reciprocating).\u003c\/p\u003e\n\u003ch4\u003eRotary Sealing Function\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eOil seals are installed between a rotating shaft and stationary housing to:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRetain oil or grease within the housing\u003c\/li\u003e\n\u003cli\u003eExclude dust, water and abrasive contamination\u003c\/li\u003e\n\u003cli\u003eProtect bearings and internal components\u003c\/li\u003e\n\u003cli\u003eMaintain lubrication integrity under continuous rotation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCorrect lip design, compound selection and fit directly influence leakage control and service life.\u003c\/p\u003e\n\u003ch4\u003eOil Seal Types \u0026amp; Configurations\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eSingle-lip oil seals – primary lubricant retention\u003c\/li\u003e\n\u003cli\u003eDouble-lip oil seals – lubricant retention with secondary exclusion lip\u003c\/li\u003e\n\u003cli\u003eDust-lip \/ auxiliary-lip seals – improved contamination control in dirty environments\u003c\/li\u003e\n\u003cli\u003eSpring-loaded (garter spring) seals – stabilised radial contact pressure (application dependent)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSeal geometry is selected based on shaft direction, contamination level and required retention stability.\u003c\/p\u003e\n\u003ch4\u003eShaft \u0026amp; Housing Interface Requirements\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eRotary seal performance depends on correct interface control:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShaft diameter tolerance and surface condition suitable for dynamic lip contact\u003c\/li\u003e\n\u003cli\u003eHousing bore fit to maintain radial stability\u003c\/li\u003e\n\u003cli\u003eControlled shaft runout and concentricity\u003c\/li\u003e\n\u003cli\u003eProper installation to prevent lip damage or distortion\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIncorrect fit or poor shaft condition commonly leads to premature leakage or lip wear.\u003c\/p\u003e\n\u003ch4\u003eOperating Conditions\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eOil seals are used in:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGearboxes and reduction drives\u003c\/li\u003e\n\u003cli\u003eElectric motors and pump shafts\u003c\/li\u003e\n\u003cli\u003eAgitators and mixers\u003c\/li\u003e\n\u003cli\u003eRotating process equipment\u003c\/li\u003e\n\u003cli\u003eIndustrial drive systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDesign review considers rotational speed, lubricant type (oil or grease), contamination exposure, temperature range and duty cycle.\u003c\/p\u003e\n\u003ch4\u003eCommon Failure Causes (Rotary Applications)\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eCorrect specification helps reduce:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLeakage from worn shaft tracks\u003c\/li\u003e\n\u003cli\u003eLip hardening or cracking from temperature\u003c\/li\u003e\n\u003cli\u003eContamination ingress where dust lip is required\u003c\/li\u003e\n\u003cli\u003eGrooving of shaft surface\u003c\/li\u003e\n\u003cli\u003ePremature wear from misalignment or runout\u003c\/li\u003e\n\u003cli\u003eInstallation damage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eHow to Measure \u0026amp; Specify an Oil Seal\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eProvide the following information for accurate manufacture or replacement:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eShaft diameter (ID)\u003c\/li\u003e\n\u003cli\u003eHousing bore (OD)\u003c\/li\u003e\n\u003cli\u003eSeal width (W)\u003c\/li\u003e\n\u003cli\u003eSeal type (single, double, dust lip; spring-loaded if required)\u003c\/li\u003e\n\u003cli\u003eLubricant type and temperature range\u003c\/li\u003e\n\u003cli\u003eShaft rotational speed and duty cycle\u003c\/li\u003e\n\u003cli\u003eContamination exposure (dust, water, slurry, washdown)\u003c\/li\u003e\n\u003cli\u003eRotation direction (if relevant)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor replacement of worn or non-standard seals, a photo or sample assists reverse engineering.\u003c\/p\u003e\n\u003ch4\u003eReverse Engineering \u0026amp; OEM Alternative Support\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eOil seal replacement for non-standard housings\u003c\/li\u003e\n\u003cli\u003eReverse engineering of discontinued OEM designs\u003c\/li\u003e\n\u003cli\u003eLip configuration selection for contamination control\u003c\/li\u003e\n\u003cli\u003eDuty-based compound selection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIndustrial rotary sealing solutions supplied across South Africa and Africa.\u003c\/p\u003e\n\u003ch4\u003eBoundary Control\u003c\/h4\u003e\n\u003cp\u003eThis page covers rotary shaft oil seals and radial lip seals only. It does not cover hydraulic cylinder piston seals, rod seals, wiper seals, chevron packing or static gaskets, which are addressed under their respective component pages.\u003c\/p\u003e","brand":"kaybin","offers":[{"title":"Default Title","offer_id":45282912567468,"sku":null,"price":0.0,"currency_code":"ZAR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0706\/4790\/6476\/files\/kaybin-oil-seals-rotary-shaft-seals-industrial.webp_1.webp?v=1771041154","url":"https:\/\/kaybin.co.za\/products\/oil-seals-rotary-shaft-seals","provider":"Kaybin","version":"1.0","type":"link"}