To ensure your engineering designs are accurate, verify your files carefully. If you want, tell me: What specific or module size do you need? Are you designing the internal hub or the external shaft ? What tolerance class does your application require? Share public link
Letters F–G are slip fits; H is the standard line-on-line fit. Verified Resources and Standards
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Using unverified dimensions can lead to costly manufacturing errors, improper fits, or failure of the splined connection. Verified DIN 5480 PDFs include precise tolerances for:
What (e.g., sliding fit, interference fit) do you need? To ensure your engineering designs are accurate, verify
(Profile Shift Factor): The intentional shift applied to the cutting tool to achieve specific clearance, strength, or backlash characteristics. DIN 5480 Spline Dimension Formula Architecture
) varies depending on the specific fit classification (e.g., 9H, 7H, 8f, 7g) specified by the design requirements. Standard DIN 5480 Dimensions Reference Table What tolerance class does your application require
The DIN 5480 standard defines the geometry, dimensions, and gauging practices for involute splines based on reference diameters. Unlike other standards that rely strictly on pitch diameter, DIN 5480 centers its calculation structure around a standardized reference diameter (
Below is a verified sample reference table for common nominal sizes. These values represent the standard geometry before applying specific tolerance classes. Nominal Designation ( Reference Diameter ( Base Diameter ( Shaft Tip Diameter ( da1d sub a 1 end-sub Hub Root Diameter ( df2d sub f 2 end-sub Note: In the standard designation (e.g., DIN 5480 - W
Ensure the relationship between module and tooth count perfectly aligns with the stated reference diameter.
(depending on manufacturing method like hobbing or broaching). www.kisssoft.cz Tolerance & Fit Classes Tolerance classes range from , with lower numbers representing tighter tolerances. Slip Fits: Indicated by lowercase (Shaft) or uppercase Line-on-Line Fits: Indicated by (Shaft) or Interference Fits: Indicated by (Shaft) or Verified Technical References (PDF)