{"product_id":"the-timken-company-9912-radial-shaft-oil-seal","title":"The Timken Company 9912 Radial Shaft Oil Seal","description":"\u003ch3 data-section-id=\"17lc1ru\" data-start=\"0\" data-end=\"16\" class=\"PDq2pG_selectionAnchorContainer\"\u003eDescription:\u003cspan aria-hidden=\"true\" class=\"PDq2pG_selectionAnchor\"\u003e\u003c\/span\u003e\n\u003c\/h3\u003e\n\u003cp data-start=\"17\" data-end=\"801\"\u003eThe Timken National 9912 oil seal is a premium radial shaft oil seal engineered to retain lubricants while preventing dirt, dust, moisture, and other contaminants from entering rotating equipment. Featuring a nitrile rubber sealing element with a spring-loaded dual-lip (Type 25) design, it provides reliable sealing performance for industrial, automotive, agricultural, and heavy-duty machinery. Commonly installed in gearboxes, wheel hubs, pumps, compressors, electric motors, and power transmission systems, the National 9912 oil seal is widely used by maintenance teams, OEMs, and system integrators for equipment repairs, seal replacements, retrofit projects, and preventive maintenance to extend service life and minimize lubricant leakage. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5ms9th\" data-start=\"803\" data-end=\"820\"\u003eApplications:\u003c\/h3\u003e\n\u003cp data-start=\"821\" data-end=\"1264\"\u003eThe Timken National 9912 oil seal is designed for rotary shaft sealing applications where dependable lubricant retention and contaminant exclusion are essential. Its spring-loaded dual-lip construction makes it suitable for industrial gearboxes, wheel-end assemblies, agricultural machinery, pumps, compressors, electric motors, and other rotating equipment operating in demanding industrial environments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"5hg6bl\" data-start=\"1266\" data-end=\"1295\"\u003eTechnical Specifications:\u003c\/h3\u003e\n\u003cp data-start=\"1296\" data-end=\"2272\"\u003e• Manufacturer Part Number (MPN): 9912\u003cbr data-start=\"1334\" data-end=\"1337\"\u003e• Manufacturer: Timken National\u003cbr data-start=\"1368\" data-end=\"1371\"\u003e• Product Type: Oil Seal\u003cbr data-start=\"1395\" data-end=\"1398\"\u003e• Seal Type: Radial Shaft Oil Seal\u003cbr data-start=\"1432\" data-end=\"1435\"\u003e• Series: 9000 Series\u003cbr data-start=\"1456\" data-end=\"1459\"\u003e• Seal Design: Type 25 (Dual Lip with Spring)\u003cbr data-start=\"1504\" data-end=\"1507\"\u003e• Material: Nitrile (Buna-N) Rubber\u003cbr data-start=\"1542\" data-end=\"1545\"\u003e• Design Units: Inch (Imperial)\u003cbr data-start=\"1576\" data-end=\"1579\" data-is-only-node=\"\"\u003e• Shaft Diameter (ID): 1.875 in (47.625 mm)\u003cbr data-start=\"1622\" data-end=\"1625\"\u003e• Outside Diameter (OD): 2.865 in (72.771 mm)\u003cbr data-start=\"1670\" data-end=\"1673\"\u003e• Housing Bore Diameter: 2.877 in (73.076 mm)\u003cbr data-start=\"1718\" data-end=\"1721\"\u003e• Overall Width: 0.470 in (11.938 mm)\u003cbr data-start=\"1758\" data-end=\"1761\"\u003e• Lip Design: Multi-Lip with Spring\u003cbr data-start=\"1796\" data-end=\"1799\"\u003e• Construction: Solid, Steel Case Without Inner Case\u003cbr data-start=\"1851\" data-end=\"1854\"\u003e• Maximum Shaft Surface Speed: 3,000 ft\/min\u003cbr data-start=\"1897\" data-end=\"1900\"\u003e• Misalignment Tolerance: 0.015 in @ 800 rpm; 0.010 in @ 4,200 rpm\u003cbr data-start=\"1966\" data-end=\"1969\"\u003e• Continuous Operating Temperature: -40°F to 225°F (-40°C to 107°C)\u003cbr data-start=\"2036\" data-end=\"2039\"\u003e• Weight: Approximately 0.21 lb (0.095 kg)\u003cbr data-start=\"2081\" data-end=\"2084\"\u003e• Typical Applications: Industrial gearboxes, wheel hubs, pumps, compressors, electric motors, agricultural equipment, and power transmission systems. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 data-section-id=\"1cz0398\" data-start=\"2274\" data-end=\"2298\"\u003eCommon Replacements:\u003c\/h3\u003e\n\u003cp data-start=\"2299\" data-end=\"2400\"\u003e• SKF CR 18731 Oil Seal\u003cbr data-start=\"2322\" data-end=\"2325\"\u003e• Federal-Mogul National 9912\u003cbr data-start=\"2354\" data-end=\"2357\"\u003e• Timken National 9912 Replacement Oil Seal\u003c\/p\u003e","brand":"Timken","offers":[{"title":"New","offer_id":51714040430894,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_2923ba46-4589-4c07-92bd-2b2fc4aa9f91.jpg?v=1770414646","url":"https:\/\/plgautomation.com\/products\/the-timken-company-9912-radial-shaft-oil-seal","provider":"PLG Automation ","version":"1.0","type":"link"}