| Component | Diameter type | Tolerance class | |-----------|---------------|----------------| | Shaft – major dia d₁ | Centering | h7 | | Hub – major dia d₁ | Centering | H7 | | Shaft – minor dia d₂ | Clearance | h11 | | Hub – minor dia d₂ | Clearance | H11 | | Tooth width b (shaft) | – | d9 or f7 | | Tooth width b (hub) | – | D9 or H8 |
Clearance at root ensures no interference at the minor diameter.
While we cannot reprint the entire standard here due to copyright, an "exclusive" understanding requires knowing what you are looking at. DIN 5462 covers light, medium, and heavy series. The key parameter is the number of splines and the major diameter.
It is crucial for modern designers to note that DIN 5462 has been largely superseded in new designs by DIN 5480 (and increasingly by ISO 4156).
DIN 5480 was developed to bridge the gap between "loose" sliding fits and "tight" interference fits (where the hub is pressed or shrunk onto the shaft). DIN 5480 offers a more comprehensive system of fits and tolerances, allowing for both sliding and press-fit connections under the same standard framework. din 5462 spline standard pdf exclusive
However, legacy machinery and maintenance specifications still strictly call for DIN 5462. If you are reverse-engineering a German-made pump or gearbox from the 1980s or 90s, adhering to the specific dimensions of DIN 5462 is mandatory for part interchangeability.
| Standard | Spline profile | Centering | Typical fit | Status | |----------|----------------|-----------|--------------|---------| | DIN 5462 | Straight-sided | Major dia | h7/H7 | Old, still used | | DIN 5463 | Straight-sided | Minor dia | h7/H7 | Obsolete | | DIN 5464 | Straight-sided (heavy duty) | Major dia | h7/H7 | Light-duty only | | DIN 5480 | Involute | Flank | h/h or H/h | Modern replacement | | ISO 14 (parallel-sided) | Straight-sided | Major dia | Similar | International equivalent |
Note: ISO 14:1982 (Straight-sided splines) is very similar to DIN 5462 but not identical in all tolerances.
Standards are not public domain documents. They are intellectual property created by standards bodies like DIN (in Germany) or ISO. The revenue generated from selling these PDFs funds the committees of engineers who meet to research, debate, and update these critical safety and design specifications. | Component | Diameter type | Tolerance class
When a document is labeled "exclusive," it is not a marketing gimmick—it is a legal status. The legitimate version of the DIN 5462 standard is exclusively available through authorized distributors like:
Once you secure your exclusive PDF, here is how to apply it to real-world manufacturing:
Step 1: Identify the Fit Open the PDF to Section 4 (Fits). Locate the table combining shaft tolerances (h, f, g) and hub tolerances (H, J, K). For a sliding fit under load, you need H7/f7.
Step 2: Determine Centering Look for the symbol on your blueprint. If it says "DIN 5462 N 8 x 42 x 48 D", the "D" means centering on the major diameter. Your PDF will tell you that the major diameter tolerance must be ISO H7/h6, while the minor diameter is a clearance fit. Note: ISO 14:1982 (Straight-sided splines) is very similar
Step 3: Inspection Data The exclusive PDF includes go/no-go gauge dimensions. You cannot measure a straight-sided spline with standard pins (like involute). You need ring gauges. The PDF provides the exact wear limits for these gauges.
Step 4: Strength Calculation
The appendix of the standard (often omitted in free scans) gives the shear stress formulas. For a shaft with 8 splines, the effective area is A = (D - d)/2 * L * N, where N is number of splines. Use the PDF’s coefficients for load distribution.
Before diving into dimensions, it is crucial to understand the origin of DIN 5462. This German standard (Deutsches Institut für Normung) specifies the dimensions and tolerances for straight-sided splines. Unlike involute splines (DIN 5480) which have curved teeth, DIN 5462 deals with parallel key splines with straight flanks.
Originally developed for applications requiring a robust, non-self-centering spline connection—such as agricultural machinery, heavy-duty gearboxes, and universal joint shafts—DIN 5462 has been largely superseded in modern German engineering by DIN 5480 (involute). However, it remains actively used in repair, legacy equipment, and international manufacturing where compatibility with older ISO standards is required.