{"id":876,"date":"2026-08-26T03:59:46","date_gmt":"2026-08-26T03:59:46","guid":{"rendered":"https:\/\/chain-tensioners.com\/blog\/how-to-measure-roller-chain-wear-elongation-before-adjusting-the-tensioner\/"},"modified":"2026-08-26T03:59:46","modified_gmt":"2026-08-26T03:59:46","slug":"how-to-measure-roller-chain-wear-elongation-before-adjusting-the-tensioner","status":"publish","type":"post","link":"https:\/\/chain-tensioners.com\/ar\/how-to-measure-roller-chain-wear-elongation-before-adjusting-the-tensioner\/","title":{"rendered":"\u0643\u064a\u0641\u064a\u0629 \u0642\u064a\u0627\u0633 \u0627\u0633\u062a\u0637\u0627\u0644\u0629 \u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0628\u0643\u0631\u0627\u062a \u0642\u0628\u0644 \u0636\u0628\u0637 \u062c\u0647\u0627\u0632 \u0627\u0644\u0634\u062f"},"content":{"rendered":"
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MEASUREMENT GUIDE | WEAR ELONGATION + REFERENCE POINTS<\/p>\n

\u0643\u064a\u0641\u064a\u0629 \u0642\u064a\u0627\u0633 \u0627\u0633\u062a\u0637\u0627\u0644\u0629 \u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u0628\u0643\u0631\u0627\u062a \u0642\u0628\u0644 \u0636\u0628\u0637 \u062c\u0647\u0627\u0632 \u0627\u0644\u0634\u062f<\/h2>\n

Measure wear elongation and reference points from defined reference points, record the method, and compare repeatable readings before adjustment.<\/p>\n

\u0637\u0644\u0628 \u0645\u0631\u0627\u062c\u0639\u0629 \u0647\u0646\u062f\u0633\u064a\u0629<\/a>Verify the chain path first; then assess wear elongation and reference points.<\/span><\/div>\n<\/div>\n
\"\u0643\u064a\u0641\u064a\u0629
\u0645\u0646\u0638\u0631 \u0645\u0631\u062c\u0639\u064a: \u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0633\u062a\u0637\u0627\u0644\u0629 \u0627\u0644\u062a\u0622\u0643\u0644\u060c \u0648\u0645\u0648\u0636\u0639 \u0627\u0644\u062a\u0644\u0627\u0645\u0633\u060c \u0648\u0627\u0644\u0645\u0633\u0627\u0641\u0629 \u0639\u0644\u0649 \u0627\u0644\u0622\u0644\u0629 \u0627\u0644\u0645\u0631\u0643\u0628\u0629.<\/figcaption><\/figure>\n<\/div>\n<\/header>\n
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Wear elongation measurement should cover multiple consecutive pitches so small joint-clearance changes accumulate into a length that can be measured with useful accuracy. Record chain pitch separately and compare it with the as-installed chain route.<\/p>\n

The chain should be lightly tensioned or positioned under the supplier’s procedure before measurement so free joint clearance does not dominate the reading. Use tensioner travel as a traceable check in this measurement of roller chain wear elongation before adjusting the tensioner assessment.<\/p>\n<\/div>\n

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\u0642\u0628\u0644 \u0623\u0646 \u062a\u0642\u0648\u0645 \u0628\u0627\u0644\u062a\u0639\u062f\u064a\u0644<\/p>\n

Record wear elongation, reference points, sprocket centres, chain path, rotation direction, operating duty, and the usable mounting envelope. In this article, apply that check specifically to measurement of roller chain wear elongation before adjusting the tensioner.<\/p>\n

chain tensioner guidance for measurement of roller chain wear elongation before adjusting the tensioner<\/a><\/div>\n<\/div>\n<\/section>\n

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\u062d\u062f\u062f \u0627\u0644\u0645\u0631\u0627\u062c\u0639 \u0627\u0644\u0642\u064a\u0627\u0633\u064a\u0629<\/h2>\n

Use defined roller reference points, such as inside and outside distances or pin centres, following the chain maker’s method; mixing methods between inspections breaks the trend. For measurement of roller chain wear elongation before adjusting the tensioner, treat chain pitch as a distinct inspection input before take-up geometry is altered.<\/p>\n

Calculate percentage elongation from measured length and nominal reference length only when the chain standard or service document defines that reference for the selected link count. Log the condition with tensioner travel before changing tensioner position or travel.<\/p>\n

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\u0625\u0637\u0627\u0644\u0629 \u0639\u0645\u0631 \u0627\u0644\u062a\u0622\u0643\u0644<\/dt>\n
\u062a\u062d\u0642\u0642 \u0645\u0646 \u0627\u0633\u062a\u0637\u0627\u0644\u0629 \u0627\u0644\u062a\u0622\u0643\u0644 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u0622\u0644\u0629 \u0623\u0648 \u0627\u0644\u0631\u0633\u0645 \u0623\u0648 \u0628\u064a\u0627\u0646\u0627\u062a \u0627\u0644\u0645\u0646\u062a\u062c\u061b \u0627\u062d\u062a\u0641\u0638 \u0628\u0627\u0644\u0645\u0631\u062c\u0639 \u0627\u0644\u0645\u062e\u062a\u0627\u0631 \u0641\u064a \u0645\u0644\u0641 \u0627\u0644\u0645\u0647\u0645\u0629.<\/dd>\n<\/div>\n
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\u0646\u0642\u0627\u0637 \u0645\u0631\u062c\u0639\u064a\u0629<\/dt>\n
\u0642\u0645 \u0628\u062a\u062d\u062f\u064a\u062f \u0646\u0642\u0627\u0637 \u0645\u0631\u062c\u0639\u064a\u0629 \u0645\u0646 \u0645\u062c\u0627\u0644 \u0642\u0627\u0628\u0644 \u0644\u0644\u062a\u0643\u0631\u0627\u0631 \u0623\u0648 \u0645\u0631\u062c\u0639 \u0631\u0633\u0645 \u0642\u0628\u0644 \u0627\u062a\u062e\u0627\u0630 \u0642\u0631\u0627\u0631 \u0627\u0644\u0634\u062f.<\/dd>\n<\/div>\n
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\u0633\u0644\u0633\u0644\u0629 \u0627\u0644\u062f\u0631\u062c\u0627\u062a<\/dt>\n
Measure chain pitch at the installed interface; note the datum used for the measurement of roller chain wear elongation before adjusting the tensioner review.<\/dd>\n<\/div>\n
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\u062d\u0631\u0643\u0629 \u0627\u0644\u0634\u062f<\/dt>\n
Confirm tensioner travel from a drawing or field reading, then identify that source in the measurement of roller chain wear elongation before adjusting the tensioner record.<\/dd>\n<\/div>\n<\/dl>\n<\/section>\n
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\u0627\u0644\u0623\u062f\u0648\u0627\u062a\u060c \u0646\u0642\u0627\u0637 \u0627\u0644\u062a\u0644\u0627\u0645\u0633\u060c \u0648\u0642\u0627\u0628\u0644\u064a\u0629 \u0627\u0644\u062a\u0643\u0631\u0627\u0631<\/h2>\n

Measure more than one section if wear may be uneven, and avoid including a damaged or nonstandard connecting section unless the procedure specifically allows it. Compare this condition with wear elongation and the actual sprocket engagement before release.<\/p>\n