Linear Guide Sizing

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What do you want to determine?

Guideline values for S₀

F is the highest load on the most heavily loaded carriage, including short peaks. If moments act, use the equivalent static load (force plus moment component according to the manufacturer catalogue). The guideline values are conservative and follow European manufacturers. Other manufacturers, e.g. from Japan and Taiwan, specify lower minimum values with their own calculation methods (correction factors, separate moment check), roughly 1–3 without and 2–5 with shock. The calculation method and guideline value of the manufacturer actually used are binding.

Result

Formulas

Example Calculation

Guide carriage with C₀ = 28.6 kN, highest load F = 8 kN:
S₀ = 28.6 / 8 ≈ 3.58
This is only sufficient if all loads are known and the guide runs smoothly without shock (3–5). For a normal design with partly estimated loads or moderate shock (5–8), it is too low.

Note: The calculation follows the manufacturer catalogs: S₀ = C₀ / F. For F, enter the highest load that occurs, even if it acts only briefly. Shock and vibration are covered by the required S₀ (see the guideline values in the calculator), not by a surcharge on the load. The static load rating C₀ can be found in the catalog of the respective guide manufacturer.