If you work in mechanical engineering, automotive repair, or industrial maintenance, you have likely encountered a radial shaft seal. The DIN 3760 standard is the definitive technical specification for these critical components, particularly for Type A and Type B rotary shaft lip seals with a protective dust lip.

This article explains what DIN 3760 covers, why it matters, and how to access the official PDF.

Important note: DIN standards are copyrighted and must be purchased. Free downloads from unauthorized websites are often outdated, incomplete, or illegal.

Here are the official sources:

If you are looking for the DIN 3760 PDF, you are likely checking for one of the following specifications:

  • Tolerances: It provides the exact tolerances required for both the shaft and the housing bore to ensure a proper sealing fit.
  • Design Codes: It outlines how to designate the seal. For example, a designation might look like DIN 3760 - A 30x47x7, where: