{"product_id":"os-metric-lip-shaft-seal-30-x-40-x-4-mm-rubberstee","title":"OS Metric Lip Shaft Seal 30 x 40 x 4 mm Rubber\/Steel single-piece pack for linear slide unit and sealed ball bearing protection, ceramic-compatible OS30404 series","description":"\u003cp\u003eMetric 30 x 40 x 4 mm lip shaft seal, single-piece pack\u003cbr\u003e\n✔️ 30 mm ID x 40 mm OD x 4 mm width; rubber lip, steel case, OS30404\u003c\/p\u003e\n\n\u003cp\u003eThis single-piece metric lip shaft seal protects shafts and sealed ball bearings in linear slide units, gearboxes, and motor housings. Works well with ceramic-bearing applications and standard metric shafts.\u003c\/p\u003e\n\n✅ 30 mm inside diameter (ID), 40 mm outside diameter (OD), 4 mm width\u003cbr\u003e\n✅ Rubber lip with steel case for reliable sealing; OS30404 series\u003cbr\u003e\n✅ Single-piece pack for one replacement seal; fits metric shafts\u003cbr\u003e\n✅ Compatible with sealed ball bearing setups, linear slide units, and ceramic bearings\u003cbr\u003e\n\n\u003cp\u003e💡 What is a shaft lip seal used for in sealed ball bearing and linear slide unit applications?\nA shaft lip seal keeps lubricants in and dirt out, helping bearings and slides run longer.\nShort overview:\n- Prevents contamination and retains lubricant for sealed ball bearing longevity\n- Helps linear slide units maintain smooth motion and reduces wear\n- Works with rubber-on-steel designs and ceramic bearing upgrades\u003c\/p\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52511363301695,"sku":"860626","price":33.76,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/19c0c7b41ab9001242c1056172ac0e61.jpg?v=1776638448","url":"https:\/\/bearingscanada.com\/products\/os-metric-lip-shaft-seal-30-x-40-x-4-mm-rubberstee","provider":"Bearings Canada","version":"1.0","type":"link"}