{"id":356,"date":"2026-08-14T01:30:44","date_gmt":"2026-08-14T01:30:44","guid":{"rendered":"https:\/\/5speedtransmission.com\/how-to-measure-sprocket-bore-keyway-hub-diameter-and-length-through-bore\/"},"modified":"2026-08-14T01:30:44","modified_gmt":"2026-08-14T01:30:44","slug":"how-to-measure-sprocket-bore-keyway-hub-diameter-and-length-through-bore","status":"publish","type":"post","link":"https:\/\/5speedtransmission.com\/bg\/how-to-measure-sprocket-bore-keyway-hub-diameter-and-length-through-bore\/","title":{"rendered":"\u041a\u0430\u043a \u0434\u0430 \u0438\u0437\u043c\u0435\u0440\u0438\u043c \u043e\u0442\u0432\u043e\u0440\u0430 \u043d\u0430 \u0437\u044a\u0431\u043d\u043e\u0442\u043e \u043a\u043e\u043b\u0435\u043b\u043e, \u0448\u043f\u043e\u043d\u043a\u043e\u0432\u0438\u044f \u043a\u0430\u043d\u0430\u043b, \u0434\u0438\u0430\u043c\u0435\u0442\u044a\u0440\u0430 \u043d\u0430 \u0433\u043b\u0430\u0432\u0438\u043d\u0430\u0442\u0430 \u0438 \u0434\u044a\u043b\u0436\u0438\u043d\u0430\u0442\u0430 \u043f\u0440\u0435\u0437 \u043e\u0442\u0432\u043e\u0440\u0430"},"content":{"rendered":"
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\u0418\u041d\u0416\u0415\u041d\u0415\u0420\u0418\u041d\u0413 \u041d\u0410 \u0417\u0412\u0415\u0417\u0414\u041d\u0418 \u041a\u041e\u041b\u0415\u041b\u0410 \u00b7 \u041f\u0420\u041e\u0415\u041a\u0422\u0418\u0420\u0410\u041d\u0415 \u041d\u0410 \u0412\u0415\u0420\u0418\u0416\u041d\u0410 \u0417\u0410\u0414\u0410\u0412\u041a\u0410 \u00b7 \u041f\u0420\u041e\u0412\u0415\u0420\u041a\u0410 \u0412 \u041f\u041e\u041b\u0415\u0412\u0418 \u0423\u0421\u041b\u041e\u0412\u0418\u042f<\/p>\n

\u041a\u0430\u043a \u0434\u0430 \u0438\u0437\u043c\u0435\u0440\u0438\u043c \u043e\u0442\u0432\u043e\u0440\u0430 \u043d\u0430 \u0437\u044a\u0431\u043d\u043e\u0442\u043e \u043a\u043e\u043b\u0435\u043b\u043e, \u0448\u043f\u043e\u043d\u043a\u043e\u0432\u0438\u044f \u043a\u0430\u043d\u0430\u043b, \u0434\u0438\u0430\u043c\u0435\u0442\u044a\u0440\u0430 \u043d\u0430 \u0433\u043b\u0430\u0432\u0438\u043d\u0430\u0442\u0430 \u0438 \u0434\u044a\u043b\u0436\u0438\u043d\u0430\u0442\u0430 \u043f\u0440\u0435\u0437 \u043e\u0442\u0432\u043e\u0440\u0430<\/h1>\n

Measure the shaft-interface dimensions from defined reference surfaces so a replacement sprocket mounts at the same axial position and transmits torque without fretting or interference.<\/p>\n

sprocket bore<\/span>keyway width<\/span>keyway depth<\/span>hub diameter<\/span><\/div>\n

\u0417\u0430\u044f\u0432\u043a\u0430 \u0437\u0430 \u0438\u043d\u0436\u0435\u043d\u0435\u0440\u043d\u0430 \u043f\u043e\u0434\u0434\u0440\u044a\u0436\u043a\u0430 \u043e\u0442 Sprocket<\/a><\/div>\n<\/div>\n<\/div>\n<\/header>\n

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\u0418\u043d\u0436\u0435\u043d\u0435\u0440\u0435\u043d \u043e\u0431\u0445\u0432\u0430\u0442<\/p>\n

Measurement Snapshot: Measuring sprocket bore, keyway, hub diameter, and length through bore<\/h2>\n

Measure the shaft-interface dimensions from defined reference surfaces so a replacement sprocket mounts at the same axial position and transmits torque without fretting or interference. This article concentrates on sprocket bore, keyway width, keyway depth, hub diameter, length through bore, and shaft fit as field-verifiable decision inputs.<\/p>\n

For measuring sprocket bore, keyway, hub diameter, and length through bore, keep chain engagement, shaft mounting, operating duty, and maintainability in the same decision record; use the current drawing whenever an exact limit is model-specific.<\/p>\n<\/section>\n

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\u0421\u043f\u0440\u0430\u0432\u043a\u0430 \u0437\u0430 \u043f\u043e\u043b\u0435\u0442\u043e<\/p>\n

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\u0418\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u0432\u0435\u0440\u0438\u0433\u0430\/\u0437\u044a\u0431<\/dt>\n
Confirm sprocket bore, keyway width, and the mating chain dimensions before changing hardware.<\/dd>\n
\u0418\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441 \u0432\u0430\u043b\/\u0433\u043b\u0430\u0432\u0438\u043d\u0430<\/dt>\n
Record keyway depth and mounting details that control concentricity, axial position, or load transfer.<\/dd>\n
\u041e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e \u0434\u0435\u0436\u0443\u0440\u0441\u0442\u0432\u043e<\/dt>\n
Document speed, load, shock, starts\/reversals, contamination, washdown, and maintenance access relevant to measuring sprocket bore, keyway, hub diameter, and length through bore.<\/dd>\n
\u0417\u0430\u043f\u0438\u0441 \u0437\u0430 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430<\/dt>\n
For measuring sprocket bore, keyway, hub diameter, and length through bore, keep measured values, nominal drawing values, wear observations, and the final replacement requirement distinct in the service record.<\/dd>\n<\/dl>\n<\/div>\n
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Release measuring sprocket bore, keyway, hub diameter, and length through bore from measured interfaces, not appearance.<\/p>\n

For measuring sprocket bore, keyway, hub diameter, and length through bore, check the chain interface, shaft connection, duty, and installed geometry as separate acceptance items, then reconcile them in the final specification.<\/p>\n<\/div>\n<\/div>\n<\/section>\n