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Engineering Calculator · 009

Cable Seal Compression Percentage Calculator

Express cable-to-opening diametral overlap as radial interference and a diameter-based preliminary compression percentage.

Cable dimensions
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

Diametral interference1.5mm
Radial interference0.75mm
Diameter compression8.33%

Formula
cd=Dc−DsDc 100%c_d=\frac{D_c-D_s}{D_c}\,100\%

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

Direct answer

What this result means

Express cable-to-opening diametral overlap as radial interference and a diameter-based preliminary compression percentage. The relationship c = (Dc − Ds) / Dc × 100% ties cable outside diameter and seal opening diameter directly to the reported result. The cable and uncompressed opening are circular. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable Seal Compression Percentage Calculator engineering relationship diagramc = (Dc − Ds) / Dc × 100% defines the calculation shown here. The cable and uncompressed opening are circular. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents seal compression percentage and is not to scale.DIAMETER COMPRESSION · TOOL 009Cable outside diameterDiametral interference
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

c = (Dc − Ds) / Dc × 100% defines the calculation shown here. The cable and uncompressed opening are circular. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
cd=Dc−DsDc 100%c_d=\frac{D_c-D_s}{D_c}\,100\%

c = (Dc − Ds) / Dc × 100% defines the calculation shown here. The cable and uncompressed opening are circular. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

DsSeal opening diametermm

Use sequence

From measurement to review

  1. Confirm cable outside diameter and seal opening diameter from a controlled drawing, measurement or project document.
  2. Apply c = (Dc − Ds) / Dc × 100% with consistent units and keep the entered values beside the result.
  3. Use diametral interference only after checking seal material, opening definition, cable tolerance and the manufacturer’s declared sealing range.

Limits

What this calculation does not confirm

  • The cable and uncompressed opening are circular.
  • 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 seal compression percentage calculator calculate diametral interference?

The tool applies c = (Dc − Ds) / Dc × 100% to cable outside diameter, seal opening diameter. The cable and uncompressed opening are circular. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does diametral interference show for this diameter compression review?

Express cable-to-opening diametral overlap as radial interference and a diameter-based preliminary compression percentage. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about seal material before using the cable seal compression percentage calculator result?

The equation does not model seal material, opening definition, cable tolerance and the manufacturer’s declared sealing range. 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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