Defined by the space width on the hub and the tooth thickness on the shaft. Inspection Dimensions ( cap M sub 1 cap M sub 2
DIN 5480 is the German standard for involute splines with a 30° pressure angle, widely used in the automotive, hydraulic, and aerospace industries. Unlike many other standards, DIN 5480 is based on that are independent of the module, allowing for easy integration with standard bearing sizes. Key Components of DIN 5480
Provides excellent summaries and visual guides of the DIN 5480-1 standards.
To effectively use a DIN 5480 dimensions table, you must understand the relationship between the number of teeth ( ), the module ( ), and the diameters. Reference Diameter ( din 5480 spline dimensions pdf
Here are the key dimensions for each type:
Unlike straight-sided splines, DIN 5480 utilizes an . This profile mirrors the curved geometry found in standard spur gears. Key Characteristics
If you are looking for a DIN 5480 spline dimensions PDF, this article breaks down the essential geometry, calculation formulas, and tolerance classes you need to understand. The Logic of DIN 5480 Naming Defined by the space width on the hub
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Represents an External Spline (Shaft). Note: N represents an Internal Spline (Hub). 120: The Reference Diameter ( 3: The Module ( 38: The Number of Teeth (
Whenever you look at a dimension table or drawing calling for DIN 5480, you can decode the string of numbers by breaking them down into five distinct parts: Key Components of DIN 5480 Provides excellent summaries
Whether you are a mechanical designer, a CNC machinist, or a procurement specialist looking for a , understanding the geometric principles, calculation formulas, and dimensional tables of this standard is critical for ensuring component compatibility and preventing mechanical failure.
The module is the ratio of the pitch diameter to the number of teeth. DIN 5480 typically prefers modules ranging from 0.5 to 10. Common modules include 1.0, 1.25, 1.5, 2.0, and 3.0. A higher module means larger, stronger teeth.
When reading an engineering drawing or searching a datasheet, you will encounter a specific nomenclature. A standard DIN 5480 designation looks like this:
Instead of measuring the entire tooth, engineers measure over pins or balls (across rolls) or use span measurements ($W_k$). The standard provides tables listing the "Actual Space Width" ($E_max$ and $E_min$) and "Actual Tooth Thickness" ($S_max$ and $S_min$).
DIN 5480 utilizes the standard ISO tolerance system (letters and numbers) to define the fit between the shaft and the hub.