{"id":792,"date":"2025-03-07T13:46:02","date_gmt":"2025-03-07T05:46:02","guid":{"rendered":"https:\/\/hengoseal.com\/?p=792"},"modified":"2025-05-07T10:28:45","modified_gmt":"2025-05-07T02:28:45","slug":"oil-seals-vs-dust-seals","status":"publish","type":"post","link":"https:\/\/hengoseal.com\/uk\/oil-seals-vs-dust-seals\/","title":{"rendered":"Oil Seals vs. Dust Seals \u2013 Which One Do You Need in 2025?"},"content":{"rendered":"

\u041d\u0435 \u0432\u043f\u0435\u0432\u043d\u0435\u043d\u0438\u0439, \u0447\u0438 \u043f\u043e\u0442\u0440\u0456\u0431\u0435\u043d \u0432\u0430\u043c \u0441\u0430\u043b\u044c\u043d\u0438\u043a<\/strong> \u0430\u0431\u043e a \u043f\u0438\u043b\u043e\u0432\u0435 \u0443\u0449\u0456\u043b\u044c\u043d\u0435\u043d\u043d\u044f<\/strong>? I\u2019ve been there. I\u2019ll walk you through their differences, so you don\u2019t end up choosing the wrong seal for your application.<\/p>\n

Oil seals and dust seals serve different purposes: one keeps lubrication in<\/strong>, the other keeps \u0437\u0430\u0431\u0440\u0443\u0434\u043d\u044e\u0432\u0430\u0447\u0456<\/strong>. Here\u2019s how to decide.<\/p>\n

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Keep reading to discover which sealing solution works best for motors, gearboxes, and off-road machinery.<\/p>\n

What is the main difference between an oil seal and a dust seal?<\/h2>\n

Many people confuse dust seals and oil seals\u2014but their jobs are quite different.
\nOil seals<\/strong> are for lubricant retention<\/strong>, \u043f\u043e\u043a\u0438 \u043f\u0438\u043b\u043e\u0432\u0456 \u0443\u0449\u0456\u043b\u044c\u043d\u044e\u0432\u0430\u0447\u0456<\/strong> are for blocking external contaminants<\/strong>.<\/p>\n

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Oil seals (also called rotary shaft seals) are used in lubricated rotating machinery<\/strong> to prevent oil leaks<\/strong>, such as in gearboxes or hydraulic pumps. Dust seals (wiper seals) are designed for harsh outdoor environments<\/strong>, blocking dirt, mud, and water<\/strong> that could damage the shaft.<\/p>\n\n\n\n\n\n\n\n\n\n
\u041e\u0441\u043e\u0431\u043b\u0438\u0432\u0456\u0441\u0442\u044c<\/strong><\/th>\n\u0421\u0430\u043b\u044c\u043d\u0438\u043a<\/strong><\/th>\n\u041f\u0438\u043b\u043e\u0432\u0438\u0439 \u0443\u0449\u0456\u043b\u044c\u043d\u044e\u0432\u0430\u0447<\/strong><\/th>\n<\/tr>\n<\/thead>\n
\u0444\u0443\u043d\u043a\u0446\u0456\u044f<\/td>\nRetains lubricant<\/td>\n\u0411\u043b\u043e\u043a\u0443\u0454 \u043f\u0438\u043b \u0456 \u0441\u043c\u0456\u0442\u0442\u044f<\/td>\n<\/tr>\n
\u0406\u0434\u0435\u0430\u043b\u044c\u043d\u0435 \u0432\u0438\u043a\u043e\u0440\u0438\u0441\u0442\u0430\u043d\u043d\u044f<\/td>\nMotors, gearboxes<\/td>\nConstruction, off-road<\/td>\n<\/tr>\n
\u043c\u0430\u0442\u0435\u0440\u0456\u0430\u043b<\/td>\nNBR, FKM, PTFE<\/td>\n\u041d\u0411\u0420, \u0424\u041a\u041c<\/td>\n<\/tr>\n
\u0414\u043e\u0434\u0430\u0442\u043a\u0438<\/td>\nLubricated systems<\/td>\nDust-prone systems<\/td>\n<\/tr>\n
\u041f\u043e\u0448\u0438\u0440\u0435\u043d\u0456 \u043c\u043e\u0434\u0435\u043b\u0456<\/td>\nTG4, TCV<\/td>\nEC, DKB<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Want to dive deeper into seal structure? Check out our TC oil seal structure guide<\/a>.<\/p>\n

Which seal material is best for your application?<\/h2>\n

Not all rubber is created equal\u2014choosing the right material is essential.
\n\u0432\u0438\u043a\u043e\u0440\u0438\u0441\u0442\u0430\u043d\u043d\u044f NBR<\/strong> for basic oil or dust resistance, FKM<\/strong> for heat\/chemicals, and PTFE<\/strong> when speed is key.<\/p>\n

Let\u2019s break it down:<\/p>\n