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ENEnglish繁中繁體中文ESEspañolARالعربيةFRFrançaisITItalianoPTPortuguêsRUРусскийDEDeutschJA日本語VITiếng ViệtKO한국어THไทยTRTürkçe

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Engineering Calculator · 012

Cable Bend Chord Clearance Calculator

Calculate chord length, sagitta and arc length for a constant-radius cable bend when enclosure clearance is constrained.

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

Chord length203.65mm
Chord-to-arc rise42.18mm
Arc length226.19mm

Formula
hb=Rb ⁣[1−cos⁡ ⁣(θb2)]h_b=R_b\!\left[1-\cos\!\left(\frac{\theta_b}{2}\right)\right]

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

Direct answer

What this result means

Calculate chord length, sagitta and arc length for a constant-radius cable bend when enclosure clearance is constrained. The relationship h = R[1 − cos(θ/2)] ties bend centreline radius and included bend angle directly to the reported result. The routing bend is a planar circular arc. Treat the value as a transparent preliminary calculation, then compare it with the actual cable-entry assembly and current product documentation.

Cable Bend Chord Clearance Calculator engineering relationship diagramh = R[1 − cos(θ/2)] defines the calculation shown here. The routing bend is a planar circular arc. Keep the entered units with the result so another reviewer can reproduce the method. This dedicated schematic represents bend chord clearance and is not to scale.BEND CHORD · TOOL 012Bend centreline radiusChord length
Calculator-specific engineering relationship diagram — schematic, not a product drawing, and not to scale.

Formula & theory

Make the assumptions visible.

h = R[1 − cos(θ/2)] defines the calculation shown here. The routing bend is a planar circular arc. Keep the entered units with the result so another reviewer can reproduce the method.

Calculation relationship
hb=Rb ⁣[1−cos⁡ ⁣(θb2)]h_b=R_b\!\left[1-\cos\!\left(\frac{\theta_b}{2}\right)\right]

h = R[1 − cos(θ/2)] defines the calculation shown here. The routing bend is a planar circular arc. Keep the entered units with the result so another reviewer can reproduce the method.

Variables

θIncluded bend angle°
hChord-to-arc risemm

Use sequence

From measurement to review

  1. Confirm bend centreline radius and included bend angle from a controlled drawing, measurement or project document.
  2. Apply h = R[1 − cos(θ/2)] with consistent units and keep the entered values beside the result.
  3. Use chord length only after checking the cable centreline, enclosure walls, cable OD and the manufacturer’s bend-radius requirement.

Limits

What this calculation does not confirm

  • The routing bend is a planar circular arc.
  • 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 bend chord clearance calculator calculate chord length?

The tool applies h = R[1 − cos(θ/2)] to bend centreline radius, included bend angle. The routing bend is a planar circular arc. Keep the displayed units with the result so the calculation can be repeated.

02Calculator guidanceWhat does chord length show for this bend chord review?

Calculate chord length, sagitta and arc length for a constant-radius cable bend when enclosure clearance is constrained. It is a preliminary engineering value, not confirmation of a cable-gland model, standards compliance or installation approval.

03Calculator guidanceWhat should be checked about the cable centreline before using the cable bend chord clearance calculator result?

The equation does not model the cable centreline, enclosure walls, cable OD and the manufacturer’s bend-radius requirement. 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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