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Engineering Calculator · 093

Cable Pulling Clearance Ratio Calculator

Calculate opening-to-cable ratio and diametral/radial clearance before a cable pull-through operation.

Installation planning
Start calculationReview the method

Live calculation

Enter the known values.

Units remain visible beside every field and result. Change any input to recalculate immediately in your browser.

01

Inputs

02

Results

Opening-to-cable ratio1.39:1
Diametral clearance7mm
Radial clearance3.5mm

Formula
CRpull=DoDcCR_{\mathrm{pull}}=\frac{D_o}{D_c}

The calculation runs locally in this browser. Values are not submitted or stored by this tool.

Direct answer

What this result means

Calculate opening-to-cable ratio and diametral/radial clearance before a cable pull-through operation. The relationship CR = Dopening / Dcable ties pull-through opening diameter and maximum cable OD directly to the reported result. Cable and opening are circular and coaxial at passage. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable Pulling Clearance Ratio Calculator engineering relationship diagramCR = Dopening / Dcable defines the calculation shown here. Cable and opening are circular and coaxial at passage. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents cable pulling clearance and is not to scale.PULL-THROUGH CLEARANCE · TOOL 093Pull-through opening diame…Opening-to-cable ratio
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

CR = Dopening / Dcable defines the calculation shown here. Cable and opening are circular and coaxial at passage. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
CRpull=DoDcCR_{\mathrm{pull}}=\frac{D_o}{D_c}

CR = Dopening / Dcable defines the calculation shown here. Cable and opening are circular and coaxial at passage. Keep the entered units with the result so another reviewer can reproduce the method.

Formula terms

Variables

DopeningPull-through opening diametermm
CROpening-to-cable ratio:1
crRadial clearancemm

Use sequence

From measurement to review

  1. Confirm pull-through opening diameter and maximum cable OD from a controlled drawing, measurement or project document.
  2. Apply CR = Dopening / Dcable with consistent units and keep the entered values beside the result.
  3. Use opening-to-cable ratio only after checking connectors, pulling eyes, cable ovality, bends, edge protection and the installation method.

Limits

What this calculation does not confirm

  • Cable and opening are circular and coaxial at passage.
  • Inputs describe one defined operating or measurement condition and use mutually consistent units.
  • The result does not by itself confirm product suitability, standards compliance, ingress performance or installation approval.

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Calculator FAQ

Use the number without losing the engineering context.

These answers clarify what the tool calculates and where a product-specific review still begins.

01Calculator guidanceHow does the cable pulling clearance ratio calculator calculate opening-to-cable ratio?

The tool applies CR = Dopening / Dcable to pull-through opening diameter, maximum cable OD. Cable and opening are circular and coaxial at passage. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does opening-to-cable ratio show for this pull-through clearance review?

Calculate opening-to-cable ratio and diametral/radial clearance before a cable pull-through operation. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about connectors before using the cable pulling clearance ratio calculator result?

The equation does not model connectors, pulling eyes, cable ovality, bends, edge protection and the installation method. Confirm those conditions against the actual cable-entry assembly, applicable requirement and current product documentation.

Product selection support

Connect the calculation with cable-entry product options.

Bepto Cable Glands can help relate a preliminary result to the product family and current model information for your application. You can start with the details you have; a complete drawing package is not needed to ask a question.

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