{"title":"Power Transmission Seals","description":"\u003ch2\u003ePower Transmission Seal Selection — Quick Reference\u003c\/h2\u003e\n\u003cp\u003ePower transmission seals — ROTARY SHAFT SEALS + OIL SEALS + LIP SEALS — keep oil + grease IN (and contaminants OUT) of gearboxes + pumps + motors. Failed seal = oil leak out + dust + water in + bearing failure + equipment damage.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSeal Type\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSingle Lip (Standard)\u003c\/td\u003e\n\u003ctd\u003eBasic oil + grease retention — workshop common\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDouble Lip (Dust Lip + Oil Lip)\u003c\/td\u003e\n\u003ctd\u003eDusty environments + oil-side + exclusion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTriple Lip\u003c\/td\u003e\n\u003ctd\u003eExtreme contamination + multi-stage exclusion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eV-Ring \/ Mechanical Face\u003c\/td\u003e\n\u003ctd\u003eDirty environments — labyrinth alternative\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNBR (Buna-N)\u003c\/td\u003e\n\u003ctd\u003eMineral oils + general purpose to 100°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFKM (Viton)\u003c\/td\u003e\n\u003ctd\u003eHigher temperature + chemical to 200°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHNBR \/ Silicone \/ PTFE\u003c\/td\u003e\n\u003ctd\u003eSpecialty applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring-Loaded Lip\u003c\/td\u003e\n\u003ctd\u003eStandard — spring tension keeps lip seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMetric Sizing (Inner \/ Outer \/ Width)\u003c\/td\u003e\n\u003ctd\u003eOEM replacement — exact match to bore + shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCritical:\u003c\/strong\u003e Match seal material to LUBRICANT — NBR fine for mineral oil; Viton for synthetic \/ high temp. Shaft FINISH + roundness matters — rough shaft destroys lip. Install with seal lip TOWARD oil side. Use seal driver — never hammer directly on seal face. Brands: \u003ca href=\"\/en-nz\/collections\/skf\"\u003eSKF\u003c\/a\u003e, NAK, NOK. Companion: \u003ca href=\"\/en-nz\/collections\/o-rings\"\u003eO-rings\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/bearings\"\u003ebearings\u003c\/a\u003e, \u003ca href=\"\/en-nz\/blogs\/product-guides\/o-ring-guide\"\u003eO-ring guide\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003ePower Transmission Seals\u003c\/h2\u003e\n\u003cp\u003ePower transmission seals — rotary shaft seals, oil seals, and lip seals — are the components that keep oil and grease in (and contaminants out) of gearboxes, pumps, motors, and power transmission equipment. A good seal protects bearing life and keeps lubricant where it belongs; a failed seal lets oil leak out and dust in, damaging bearings within hours. AIMS Industrial stocks power transmission seals for industrial maintenance, OEM repair, and engineering applications.\u003c\/p\u003e\n\n\u003ch3\u003eThe seal types we stock\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-lip oil seals\u003c\/strong\u003e — the most common rotary shaft seal, for general industrial applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDouble-lip seals\u003c\/strong\u003e — primary lip plus dust lip, for environments with airborne contamination\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring-loaded seals\u003c\/strong\u003e — garter spring inside the lip for consistent contact with the shaft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE-lipped seals\u003c\/strong\u003e — for high-temperature, dry-running, or chemical-resistant applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eV-rings and axial seals\u003c\/strong\u003e — for environments where radial seals can't fit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialist seals\u003c\/strong\u003e — labyrinth seals, bearing isolators, and high-speed seals for specific applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSeal materials\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrile (NBR)\u003c\/strong\u003e — the everyday material; suits oil, hydrocarbon, and general industrial fluid service up to about 100°C\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eViton (FKM)\u003c\/strong\u003e — fluoroelastomer for higher temperature (up to 200°C) and aggressive fluids\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone\u003c\/strong\u003e — for high-temperature dry running and food-grade applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePTFE\u003c\/strong\u003e — chemical resistance, low-friction, dry-running tolerance — at higher cost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolyacrylate (ACM)\u003c\/strong\u003e — for hot oil applications where Viton would be over-spec\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSizing — bore × shaft × width\u003c\/h3\u003e\n\u003cp\u003eRotary shaft seals are sized by housing bore diameter, shaft diameter, and seal width — typically given as e.g. \"30 × 47 × 7\" (30mm shaft, 47mm bore, 7mm width). All three dimensions must match the application; substituting any one is rarely workable. Seal manufacturers' catalogues list standard sizes with type designations (TC, TB, etc.) that describe lip configuration.\u003c\/p\u003e\n\n\u003ch3\u003eCommon seal failures and causes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil leaking from new seal\u003c\/strong\u003e — usually shaft surface finish issues (scoring, roughness), or incorrect size\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremature lip wear\u003c\/strong\u003e — shaft hardness too low, or shaft surface finish too rough; consider hardening or polishing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLip cracking\u003c\/strong\u003e — usually material incompatibility (wrong elastomer for fluid type) or excessive temperature\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGarter spring missing or displaced\u003c\/strong\u003e — installation damage; the spring must be in place for proper sealing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eInstallation practice\u003c\/h3\u003e\n\u003cp\u003eUse a proper seal installation tool (or a flat-faced fitting that matches the seal's outer diameter); never hammer directly on the seal face. Lubricate the lip lightly with the oil it will be sealing — installation dry tears the lip on first rotation. Check shaft surface finish and remove any score marks before fitting the new seal. For gear oil seals, ensure the seal is installed with the lip facing the oil side (the spring side faces inboard).\u003c\/p\u003e\n\n\u003ch3\u003eBrands stocked at AIMS\u003c\/h3\u003e\n\u003cp\u003ePower transmission seals are stocked from quality manufacturers — including the seal lines associated with our bearing brands (NSK, NTN, Koyo) and dedicated seal specialists. We can match by size or by OEM equipment part number — bring us the existing seal designation or a sample, and we'll cross-reference.\u003c\/p\u003e\n\n\u003cp\u003eNeed help with seal selection or sourcing? \u003ca href=\"\/en-nz\/pages\/contact-us\"\u003econtact our team\u003c\/a\u003e — we'll work through the application.\u003c\/p\u003e","products":[{"product_id":"work-shop-buddy-fd-2004-o-ring-metric-grab-kit-3-44mm-386-pcs","title":"Work Shop Buddy FD-2004 O-Ring Metric Grab Kit (3 - 44mm) - 386 Pcs","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eNBR 70 O-Ring, kit pack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eWork Shop Buddy FD-2004 O-Ring Metric Grab Kit (3 \u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003e386 Pcs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eNBR 70 (Nitrile, 70 shore) O-Ring, supplied as a multi-piece pack. NBR 70 is the trade-standard O-ring compound for hydraulic, pneumatic, water and general industrial sealing duty. Operating range typically -30 to +120°C. Resistant to most mineral oils, fuels, water and many chemicals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Work Shop Buddy","offers":[{"title":"Default Title","offer_id":49292250054933,"sku":"A0133384","price":41.31,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/work-shop-buddy-fd-2004-o-ring-metric-grab-kit-3-44mm-386-pcs-8984420.jpg?v=1781515809"},{"product_id":"work-shop-buddy-fd-2001-o-ring-imperial-grab-kit-1-8-1-3-4-382-pcs","title":"Work Shop Buddy FD-2001 O-Ring Imperial Grab Kit (1\/8 - 1-3\/4\") 382 Pcs","description":"\u003cdiv style=\"max-width:680px;width:100%;padding:12px 0;font-family:Arial,sans-serif;\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;justify-content:space-between;border-top:1px solid #e0e0e0;border-bottom:1px solid #e0e0e0;padding:16px 0;margin-bottom:24px;\"\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e◆\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eNBR 70 O-Ring, kit pack\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e●\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003eWork Shop Buddy FD-2001 O-Ring Imperial Grab Kit (\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1;padding:0 12px;text-align:center;\"\u003e\n\u003cdiv style=\"font-size:24px;color:#333;margin-bottom:6px;line-height:1;\"\u003e▲\u003c\/div\u003e\n\u003cdiv style=\"font-size:14px;font-weight:500;color:#333;line-height:1.4;\"\u003e382 Pcs\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"font-size:14px;line-height:1.6;color:#444;margin:0;\"\u003eNBR 70 (Nitrile, 70 shore) O-Ring, supplied as a multi-piece pack. NBR 70 is the trade-standard O-ring compound for hydraulic, pneumatic, water and general industrial sealing duty. Operating range typically -30 to +120°C. Resistant to most mineral oils, fuels, water and many chemicals.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Work Shop Buddy","offers":[{"title":"Default Title","offer_id":49292251332885,"sku":"A0133385","price":41.31,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/work-shop-buddy-fd-2001-o-ring-imperial-grab-kit-18-1-34-382-pcs-2528655.jpg?v=1781515809"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/collections\/power-transmission-seals-9754444.jpg?v=1773122905","url":"https:\/\/aimsindustrial.com.au\/en-nz\/collections\/power-transmission-seals.oembed","provider":"AIMS Industrial Supplies","version":"1.0","type":"link"}