This comprehensive guide explores the scope, technical specifications, design types, materials, installation guidelines, and most importantly, how to obtain the official standard in PDF format.
The current active version of the standard is , which was published in September 1996 and replaces earlier editions from 1972 and 1993. A corrigendum (Berichtigung 1) was issued in April 2019 to correct minor errors and clarify certain points; this document is available free of charge. The standard has not been withdrawn or superseded, and it remains in force as the primary reference for radial shaft seals in general machinery.
Few standards are as deeply woven into the fabric of modern mechanical engineering as . This German standard, formally titled "Rotary shaft lip type seals" ( Radial-Wellendichtringe ), serves as the international benchmark for the design, dimensioning, and application of radial shaft sealing rings—commonly known as oil seals.
While the full official text is copyrighted, you can find detailed technical summaries and purchase the official PDF here: din 3760 pdf
The primary standard governing these components is . Understanding this standard is essential for engineers, maintenance professionals, and procurement specialists. What is the DIN 3760 Standard?
The operating limits of a DIN 3760 seal depend heavily on the elastomeric compound chosen. The standard accommodates several key materials: Material Type Common Abbreviation Temperature Range Best Suited For -30°C to +100°C General engineering, mineral oils, hydraulic fluids. Fluorocarbon Rubber FMC / FKM (Viton) -20°C to +200°C High temperatures, chemicals, synthetic lubricants. Polyacrylate Rubber -25°C to +150°C Automotive gearboxes, engine oils, transmission fluids. Silicone Rubber -50°C to +150°C Extreme thermal variance, low load applications. Shaft and Housing Design Requirements
Never install a seal dry. Always apply a thin layer of grease or oil to the lip and the shaft before assembly. Why Engineers Use the DIN 3760 PDF The standard has not been withdrawn or superseded,
Similar to Type B but includes a reinforcing inner cap for increased rigidity. This design is typically used for larger dimensions or harsh installation conditions. Tameson.com Technical Specifications and Material Limits
The standard classifies rotary shaft seals into distinct types based on their design, housing material, and the presence of an auxiliary dust lip. Type A (Standard Single Lip)
To ensure your seal performs correctly, you must adhere to the operating limits defined by the standard: Rotary shaft lip seals DIN 3760 | norelem While the full official text is copyrighted, you
(now largely superseded by the international standard ISO 6194 ) is the German standard for Radial Shaft Seals . These are commonly known as oil seals or rotary seals.
When reading a part number or a datasheet, look for this marking pattern on the seal itself (as required by the standard):
: Features an additional dust lip to prevent external contamination. Type B : Metal outer diameter for more rigid housing bores.
A: Those are based on DIN 3760. "B" = Metal case, "A" = Dust lip, "BSL" = Heavy-duty spring. The standard defines these codes.