The content of the DIN 3760 PDF includes:
When looking up data sheets or a DIN 3760 PDF matrix, seals are categorized by three primary dimensions measured in millimeters (mm): : Inner Diameter (Shaft Diameter) : Outer Diameter (Housing Bore Diameter) : Seal Width (Thickness) The Standard Designation Form
: Standard material; resistant to petroleum-based fluids. Operational from -30°C to +100°C FKM (Fluorocarbon / Viton)
DIN 3760 is a technical standard developed by the German Institute for Standardization ( Deutsches Institut für Normung ). It specifies the dimensions, requirements, testing methods, and materials for rotary shaft lip seals. din 3760 pdf
Includes an additional inner metal shell. This design offers superior structural rigidity for harsh environments or large dimensions.
(commonly known as oil seals). These components are critical for sealing rotating shafts against fluids (like oil or grease) and protecting against dirt or dust. What is DIN 3760?
There are three primary construction forms defined by the standard: The content of the DIN 3760 PDF includes:
Under DIN 3760, seals are typically categorized by their construction: Type A (Single Lip): A basic seal designed to retain lubricants. Type AS (Single Lip with Dust Lip):
Features a smooth or grooved rubber outer sleeve. It offers excellent static sealing in the housing bore, even with thermal expansion or high surface roughness.
Ideal for heavy-duty applications, large diameters, or high-vibration environments where the seal must resist severe mechanical stress. Type CS: Reinforced Metal Outer Diameter with Dust Lip Design: Same as Type C, with an added protective dust lip. Standard Nomenclature and Designation Includes an additional inner metal shell
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DIN 3760 is a German standard that specifies the requirements for radial shaft seals, also known as radial lip seals, used to seal rotating shafts in various applications. The standard is published by the German Institute for Standardization (DIN) and is widely used in Europe and other parts of the world. Here, we provide an overview of the DIN 3760 standard and make available a downloadable PDF version.
. There is an entirely different standard, DIN EN 3760 , which applies to aerospace screws . If you mistakenly search for “DIN EN 3760,” you will get specifications for countersunk screws made of corrosion‑resistant steel, not the shaft seal standard discussed here. Always search for “DIN 3760:1996-09” to avoid this confusion.
Hardened or cracked sealing lips indicate that the operating temperature exceeded the material limits.
If you want to choose the right seal for your equipment, let me know: What is the and fluid type ? What is the shaft rotation speed (RPM) and diameter ? Is there a high amount of external dust or dirt ? Share public link