Dynamic-rating travel arithmetic
Linear-guide nominal life
Inputs
Select the source’s ball or roller reference-travel/exponent model; no guide model is selected.
User-entered published basic dynamic load rating of one identified guide system.
User-entered calculated load acting on the stated guide; this workspace does not derive equivalent loading.
User-entered constant total guide travel rate used only to convert nominal travel distance to a literal time value.
Results
Nominal travel life
3,200
Literal time at declared travel rate
4,444.4
Declared dynamic-rating / calculated-load ratio
4
—L10 = Lref(C/Pc)^p; thours = L10·1000/(v·60)
A first-pass number, not a code check, certification, or approval. Read the method and its limits below. What this is and is not.
Nearby: Axial response · Beam deflection & reactions · Elastic stability · Solid-shaft torsion
Method
Formula, when it applies, and when it does not
Calculate nominal travel life and a travel-rate time conversion from a linear-guide rolling type, dynamic rating, calculated load, and travel rate.
L10 = Lref(C/Pc)^p; thours = L10·1000/(v·60)
When
- One declared ball or roller guide model
- User-entered basic dynamic rating and calculated load
- Constant stated travel rate
- Nominal travel-life relation
Don’t
- This applies the cited nominal ball/roller linear-guide travel-life relation using user-entered dynamic rating and calculated load, then makes a literal time conversion at the declared constant travel rate. It does not select a rail/block, derive equivalent or moment loading, model acceleration, load distribution, lubrication, contamination, alignment, rigidity, reliability modifiers, installation, safety, suitability, or approval.