Din 748 Pdf [best] Jun 2026

DIN 748-1:1970 - Cylindrical Shaft Ends; Dimensions, Nominal Transmissible Torques

Without adhering to DIN 748, a motor from one manufacturer might not fit the coupling or gear of another. For instance, in electrical machines (DIN 748-3), a shaft diameter of is paired with a specific length (e.g., 140 mm) to maintain industry-standard footprints. How to Access the Official PDF din 748 pdf

| Part | Title / Focus | |------|----------------| | DIN 748-1 | Cylindrical shaft ends | | DIN 748-2 | Tapered shaft ends (taper 1:10) | | DIN 748-3 | Shaft ends with a threaded hole for hydraulic assembly/disassembly | DIN 748-1:1970 - Cylindrical Shaft Ends; Dimensions, Nominal

Note: The "L" in "100L" indicates a long stator core length. A "100S" (short) might use the same shaft diameter but a shorter length. The PDF tables will list these variations. A "100S" (short) might use the same shaft

DIN 748 is a German standard that specifies the dimensions, tolerances, and requirements for cylindrical shaft ends. The standard is titled "Cylindrical shaft ends - Dimensions, tolerances, and inspection" and is published by the Deutsches Institut für Normung (DIN), the German national standards body. The standard provides detailed specifications for the design, manufacture, and inspection of cylindrical shaft ends, which are commonly used in various mechanical applications, including gearboxes, motors, and pumps.

Once you acquire your DIN 748 PDF, you will see dense tables. Here is how to decode them: