{"id":259,"date":"2026-07-31T07:02:43","date_gmt":"2026-07-31T07:02:43","guid":{"rendered":"https:\/\/5speedtransmission.com\/?post_type=product&p=259"},"modified":"2026-07-31T07:02:43","modified_gmt":"2026-07-31T07:02:43","slug":"finished-bore-sprockets-asian-standard","status":"publish","type":"product","link":"https:\/\/5speedtransmission.com\/fi\/tuote\/finished-bore-sprockets-asian-standard\/","title":{"rendered":"Valmiit reik\u00e4rattaat Aasian standardi"},"content":{"rendered":"
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<\/p>\n

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25B\u2013120B<\/p>\n

Ketjun kokoalue<\/p>\n<\/div>\n

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FBN \/ FBK<\/p>\n

Tyyppi FBN (B) ja FBK (B+F)<\/p>\n<\/div>\n

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JIS B1801<\/p>\n

Aasialainen standardi<\/p>\n<\/div>\n

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ISO 9001<\/p>\n

Sertifioitu laatu<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Aasialaiset vakiovalmisteiset ketjupy\u00f6r\u00e4t \u2013 Tuotteen yleiskatsaus<\/h2>\n
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Valmiita napa- ja napaosia valmistetaan kahdella eri sylinterinmuotoisella napamallilla: FBN (tyyppi B)<\/strong> \u2014 suora napa, jossa on reik\u00e4, kiilaura ja pid\u00e4tinruuvi, ja joka toimitetaan siten, ett\u00e4 kiilaura on keskitetty hampaan keskiviivalle (ei hampaiden v\u00e4liin kuten joissakin muissa standardeissa). Kiilaura hampaan keskell\u00e4 -j\u00e4rjestelyn ansiosta kiila n\u00e4kyy ylh\u00e4\u00e4lt\u00e4p\u00e4in, kun ketjupy\u00f6r\u00e4 on asennettu akselille, mik\u00e4 helpottaa kohdistustarkistuksia. FBK (tyyppi B+F)<\/strong> \u2014 sama napa lis\u00e4laipalla, jota k\u00e4ytet\u00e4\u00e4n sovelluksissa, jotka vaativat positiivista sivuttaispid\u00e4tyst\u00e4 tai kiinnityst\u00e4 akselin olkap\u00e4\u00e4h\u00e4n.<\/p>\n

The range covers chain sizes 25B (3\/16″ pitch) through 120B (1\u00bd” pitch), in simplex. Material is C45 carbon steel with induction-hardened teeth for sizes 35B and above. For 25B light-duty chain, the sprocket is un-hardened plain C45. Stainless steel (SUS304) variants are available for 25B (food and pharmaceutical) \u2014 designated SUSFBP. For the Asian stock bore range (NK type) see our Aasialaiset vakiohammaspy\u00f6r\u00e4t<\/a>Selaa t\u00e4ysi ketjupy\u00f6r\u00e4 -kategoria<\/a>.<\/p>\n

 <\/p>\n<\/div>\n

\"Korea
\n<\/p>\n
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\ud83c\udf0f Aasialainen vs. ANSI vs. eurooppalainen \u2014 sama s\u00e4velkorkeus, eri ketju<\/p>\n

Samalla nousulla (esim. \u00bd\u2033 \/ 12,7 mm) kolmella standardilla on erilaiset rullan halkaisijat:<\/p>\n\n\n\n\n\n\n
Piki \u00bd\u2033<\/th>\nRullan \u00d8<\/th>\nStandardi<\/th>\n<\/tr>\n
40B (aasialainen\/JIS)<\/td>\n7,92 mm<\/td>\nJIS B1801<\/td>\n<\/tr>\n
#40 (amerikkalainen)<\/td>\n7,95 mm<\/td>\nANSI B29.1<\/td>\n<\/tr>\n
08B (eurooppalainen)<\/td>\n8,51 mm<\/td>\nDIN 8187<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u26a0\ufe0f \u00c4l\u00e4 sekoita ketjustandardeja \u2014 suurempi DIN 08B -rulla ei asetu oikein aasialaisiin tai ANSI-hammasprofiileihin.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Kiilauran sijainti \u2014 Aasian standardiero<\/h2>\n

Aasialaisissa vakioketjupy\u00f6riss\u00e4 kiilaura on koneistettu hampaan keskiviivalle \u2013 hampaan keskipisteen suuntaisesti, ei hampaiden v\u00e4liin. T\u00e4m\u00e4 eroaa eurooppalaisista DIN 8187- ja amerikkalaisista ANSI B29.1 -ketjupy\u00f6rist\u00e4, joissa kiilaura on tyypillisesti hampaiden v\u00e4liss\u00e4. Ero on t\u00e4rke\u00e4 kahdesta syyst\u00e4:<\/p>\n

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\u2714 Visuaalinen asennuksen vahvistus<\/p>\n

Kun kiilaura on hampaan keskiviivalla, insin\u00f6\u00f6ri voi varmistaa oikean asennusasennon katsomalla asennetun hammaspy\u00f6r\u00e4n yl\u00e4osaa \u2013 kiilan yl\u00e4puolella olevan hampaan tulisi olla keskitetty akselin kiilauramerkinn\u00e4n kohdalle. T\u00e4m\u00e4 visuaalinen tarkistus on erityisen hy\u00f6dyllinen asennettaessa suuria hammaspy\u00f6ri\u00e4, joissa hammaspy\u00f6r\u00e4n asennon mittaaminen on vaikeaa.<\/p>\n<\/div>\n

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\u26a0\ufe0f \u00c4l\u00e4 korvaa eurooppalaista\/ANSI-ketjupy\u00f6r\u00e4\u00e4<\/p>\n

Eurooppalainen tai ANSI-ketjupy\u00f6r\u00e4 ei voi korvata aasialaista standardia vastaavaa ketjupy\u00f6r\u00e4\u00e4 aasialaistyylisess\u00e4 ketjussa, vaikka jako ja reik\u00e4 olisivat samat. Hammasprofiili \u2013 istukan kaarevuuss\u00e4de, hampaan leveys ja hampaan kulma \u2013 vaihtelevat standardien v\u00e4lill\u00e4. Yhteensopimattoman ketjun ja ketjupy\u00f6r\u00e4n k\u00e4ytt\u00f6 aiheuttaa huonon rullien kytkeytymisen, nopeutunutta kulumista ja ketjupy\u00f6r\u00e4n ennenaikaisen rikkoutumisen muutaman viikon sis\u00e4ll\u00e4 asennuksesta.<\/p>\n<\/div>\n

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\ud83d\udcd0 JIS B1301 Kiilaurastandardi<\/p>\n

Kiilaurien mitat ovat JIS B1301 -standardin (tarkistettu 1976) mukaisia. T\u00e4m\u00e4 on japanilainen standardi metristen reikien kiiloille ja kiilaurille. T\u00e4m\u00e4 on mitoiltaan l\u00e4hell\u00e4 DIN 6885 -standardia, mutta siin\u00e4 k\u00e4ytet\u00e4\u00e4n hieman erilaisia \u200b\u200bsyvyyssuhteita pienille reikien kooille (alle 22 mm). K\u00e4yt\u00e4 aina JIS B1301- tai DIN 6885 -kiilaa aasialaisissa standardikokoisissa rattaissa \u2013 \u00e4l\u00e4 k\u00e4yt\u00e4 ASME B17.1 -tuumaisia \u200b\u200bkiiloja, joilla on eri leveys-syvyyssuhteet.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Avain:<\/strong> Z = hampaat | De = k\u00e4rjen halkaisija (mm) | Dp = jakoympyr\u00e4n halkaisija (mm) | BD = rei\u00e4n halkaisijavaihtoehdot (mm) | BL = rei\u00e4n pituus (mm) | a = kiilauran leveys (mm) | FBN = B-tyypin napa; FBK = B-tyypin laippa; SUSFBP = SUS304 ruostumaton ter\u00e4sValmiin rei\u00e4n hammaspy\u00f6r\u00e4n tekniset tiedot \u2014 35B - 100B<\/span><\/p>\n<\/div>\n

 <\/p>\n

35B | Nousu 9,525 mm | Rullan \u00d8 5,08 mm | Sis\u00e4leveys 4,78 mm | C45 karkaistu<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nHalkaisija (mm)<\/th>\nBD-vaihtoehdot (mm)<\/th>\nBL (mm)<\/th>\nkiilaura (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n32<\/td>\n27.85<\/td>\n*21,5 (pilotti)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
11<\/td>\n38<\/td>\n33.81<\/td>\n*27 (pilotti)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
13<\/td>\n44<\/td>\n39.80<\/td>\n10, 12, 14, 15, 16<\/td>\n20<\/td>\n4\u20135<\/td>\n<\/tr>\n
17<\/td>\n56<\/td>\n51.83<\/td>\n10, 12, 14, 15, 16<\/td>\n20<\/td>\n5<\/td>\n<\/tr>\n
25<\/td>\n80<\/td>\n76.00<\/td>\n14, 15, 16<\/td>\n20<\/td>\n5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

40B | Nousu 12,70 mm | Rullan \u00d8 7,92 mm | Sis\u00e4leveys 7,85 mm | C45 karkaistu<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nHalkaisija (mm)<\/th>\nBD-vaihtoehdot (mm)<\/th>\nBL (mm)<\/th>\nkiilaura (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n42<\/td>\n37.13<\/td>\n*28 (pilotti)<\/td>\n22<\/td>\n5<\/td>\n<\/tr>\n
12<\/td>\n55<\/td>\n49.07<\/td>\n10, 12, 14, 15, 16, 17<\/td>\n22<\/td>\n5<\/td>\n<\/tr>\n
15<\/td>\n67<\/td>\n61.09<\/td>\n12, 14, 15, 16, 17, 18<\/td>\n22<\/td>\n5<\/td>\n<\/tr>\n
17<\/td>\n75<\/td>\n69.11<\/td>\n12, 14, 15, 16, 17, 18, 19, 20<\/td>\n22<\/td>\n5<\/td>\n<\/tr>\n
20<\/td>\n88<\/td>\n81.19<\/td>\n14, 15, 16, 17, 18, 19, 20<\/td>\n22<\/td>\n5<\/td>\n<\/tr>\n
25<\/td>\n108<\/td>\n101.33<\/td>\n14, 15, 17, 18, 19, 20<\/td>\n22<\/td>\n6<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

60B | Nousu 19,05 mm | Rullan \u00d8 11,91 mm | Sis\u00e4leveys 12,07 mm | C45 karkaistu<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nHalkaisija (mm)<\/th>\nBD-vaihtoehdot (mm)<\/th>\nBL (mm)<\/th>\nkiilaura (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n63<\/td>\n58.10<\/td>\n32<\/td>\n35<\/td>\n8<\/td>\n<\/tr>\n
11<\/td>\n76<\/td>\n71.56<\/td>\n30, 32, 35<\/td>\n35<\/td>\n8<\/td>\n<\/tr>\n
13<\/td>\n89<\/td>\n84.92<\/td>\n30, 32, 35, 38, 40<\/td>\n35<\/td>\n10<\/td>\n<\/tr>\n
17<\/td>\n114<\/td>\n109.97<\/td>\n32, 35, 38, 40, 42, 45<\/td>\n35<\/td>\n10<\/td>\n<\/tr>\n
21<\/td>\n139<\/td>\n135.64<\/td>\n35, 38, 40, 42, 45, 48<\/td>\n40<\/td>\n12<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

80B | Nousu 25,40 mm | Rullan \u00d8 15,88 mm | Sis\u00e4leveys 15,88 mm | C45 karkaistu<\/h3>\n
\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nHalkaisija (mm)<\/th>\nBD-vaihtoehdot (mm)<\/th>\nBL (mm)<\/th>\nkiilaura (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n84<\/td>\n77.52<\/td>\n44 (lent\u00e4j\u00e4)<\/td>\n42<\/td>\n12<\/td>\n<\/tr>\n
13<\/td>\n117<\/td>\n113.27<\/td>\n40, 42, 45, 48<\/td>\n42<\/td>\n12<\/td>\n<\/tr>\n
17<\/td>\n151<\/td>\n146.28<\/td>\n42, 45, 48, 50<\/td>\n42<\/td>\n14<\/td>\n<\/tr>\n
21<\/td>\n186<\/td>\n180.75<\/td>\n45, 48, 50, 55<\/td>\n50<\/td>\n14<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* = esiohjausreik\u00e4 (ei kiilauraa). Saatavilla koko rei\u00e4n koko ja ruostumattomasta ter\u00e4ksest\u00e4 valmistetut SUSFBP25B-versiot \u2014 ota yhteytt\u00e4. Saatavilla my\u00f6s koot 50B, 100B ja 120B. Ilmoita tilauksen yhteydess\u00e4 ketjun koko, hammaslukum\u00e4\u00e4r\u00e4, tyyppi (FBN tai FBK) ja rei\u00e4n halkaisija (mm).<\/p>\n

<\/p>\n

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\"\"<\/p>\n

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Tekniset ominaisuudet<\/h2>\n

\"Valmiiksi<\/p>\n

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JIS B1801 -hammasprofiili<\/h3>\n

Hammasprofiili on JIS B1801 -standardin mukainen \u2014 vaaditaan oikeanlaiseen kytkeytymiseen aasialaisen standardin mukaisen rullaketjun kanssa. Istuimen kaarevuuss\u00e4de ja hampaan leveys eroavat standardeista DIN 8187 ja ANSI B29.1, koska aasialaisen standardin mukainen rullan halkaisija on hieman erilainen molemmista. Aasialaisen ketjun k\u00e4ytt\u00e4minen eurooppalaisilla tai amerikkalaisilla ketjupy\u00f6rill\u00e4 (tai p\u00e4invastoin) aiheuttaa virheellisen rullan asettumisen ja ennenaikaisen kulumisen, vaikka jako olisi sama. K\u00e4yt\u00e4 yhdess\u00e4 JIS B1801 aasialainen standardirullaketju<\/a>.<\/p>\n<\/div>\n

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C45 karkaistuilla hampailla \u2014 35B ja yli<\/h3>\n

Kaikki FBN- ja FBK-ketjupy\u00f6r\u00e4t koossa 35B - 120B on valmistettu C45-hiiliter\u00e4ksest\u00e4, ja niiden hammaskyljet on karkaistu 52\u201358 HRC:n kovuudella. Reik\u00e4 koneistetaan ennen l\u00e4mp\u00f6k\u00e4sittelysykli\u00e4 ja sen mitat vahvistetaan karkaisun j\u00e4lkeen. 25B-ketjupy\u00f6r\u00e4t ovat kevyempi\u00e4 \u2013 sile\u00e4t C45-ketjupy\u00f6r\u00e4t ilman hammaskarkaisua, jotka sopivat 25B-k\u00e4ytt\u00f6sovelluksien kevyisiin kuormiin. SUS304-ruostumattomasta ter\u00e4ksest\u00e4 valmistetut versiot (SUSFBP-etuliite) ovat vain tavallisia, eiv\u00e4tk\u00e4 materiaalin mukaan karkaisemattomia.<\/p>\n<\/div>\n

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FBK-laippatyyppi \u2014 Sivuttaiskiinnitys<\/h3>\n

FBK-tyyppi lis\u00e4\u00e4 napaan laippapinnan, joka toimii laakeripinnana akselin olkap\u00e4\u00e4t\u00e4 tai kaulusta vasten. T\u00e4t\u00e4 tarvitaan sovelluksissa, joissa ketjupy\u00f6r\u00e4n on pysytt\u00e4v\u00e4 aksiaalisesti akselilla oman geometriansa avulla sen sijaan, ett\u00e4 se olisi kokonaan kiinnitetty pid\u00e4tinruuviin. FBK on japanilaisten maatalouskoneiden ja materiaalink\u00e4sittelylaitteiden ketjuk\u00e4yt\u00f6iss\u00e4 k\u00e4ytetty standardityyppi, jossa ketjupy\u00f6r\u00e4n sijainti m\u00e4\u00e4ritet\u00e4\u00e4n akselin askelmalla pelk\u00e4n pid\u00e4tinruuvin sijaan.<\/p>\n<\/div>\n

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Korea Ever-Power aasialaisille OEM-asemille<\/h3>\n

Korealaiset teollisuuskoneet k\u00e4ytt\u00e4v\u00e4t JIS-pohjaisia \u200b\u200bketjustandardeja kaikissa kotimaisissa voimansiirroissa. Korea Ever-Powerin aasialaiset standardivalmisteiset rei\u00e4n ketjupy\u00f6r\u00e4t ovat oikea vaihtoehto korealaisvalmisteisten laitteiden voimansiirtoihin kaikilla sektoreilla \u2013 rakennuskoneissa, maatalouskoneissa, teollisuuskuljettimissa ja tekstiilikoneissa. Sama napageometria, rei\u00e4n koot ja kiilauran mitat kuin alkuper\u00e4isess\u00e4 korealaisessa OEM-spesifikaatiossa.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Sopiva ketju ja siihen liittyv\u00e4t tuotteet<\/h2>\n
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\"JIS<\/p>\n

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Sopiva aasialainen standardirullaketju<\/p>\n

Yhdist\u00e4 FBN\/FBK-ketjupy\u00f6r\u00e4si saman ketjunumeron (35B, 40B, 60B, 80B jne.) mukaiseen aasialaisen standardin mukaiseen JIS B1801 -rullaketjuun. Saatavilla on vakio-, H-sarjan, itsevoitelevia ja SUS304-ruostumattomasta ter\u00e4ksest\u00e4 valmistettuja versioita. \u00c4l\u00e4 koskaan k\u00e4yt\u00e4 eurooppalaista DIN 8187- tai ANSI B29.1 -ketjua aasialaisissa ketjupy\u00f6riss\u00e4.<\/p>\n

Katso k\u00e4ytt\u00f6ketjut \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

\n
\n

\"Korea<\/p>\n

Lehtiketjut<\/a><\/h3>\n

BL- ja LH-sarjan lehtiketjut trukkien mastoihin, teollisuusovien koneistoihin ja nostomekanismeihin. Vetolujuus 11 kN:sta yli 1 600 kN:iin.<\/p>\n

N\u00e4yt\u00e4 lehtiketjut<\/a><\/p>\n<\/div>\n

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\"Korea<\/p>\n

Tekniset ketjut<\/a><\/h3>\n

Hitsatut ter\u00e4ksest\u00e4, valuraudasta ja taotut ketjut raskaaseen teollisuuskuljetukseen ter\u00e4stehtaissa, sementtitehtaissa, kaivosteollisuudessa ja kemianteollisuudessa.<\/p>\n

N\u00e4yt\u00e4 suunnitteluketjut<\/a><\/p>\n<\/div>\n

\n

\"Korea<\/p>\n

Ruostumattomasta ter\u00e4ksest\u00e4 valmistetut ketjut<\/a><\/h3>\n

SUS304- ja SUS316L-rullaketjut elintarvike-, l\u00e4\u00e4ke- ja kemiallisiin ymp\u00e4rist\u00f6ihin. Sopii pesuun, korkeisiin l\u00e4mp\u00f6tiloihin ja sy\u00f6vytt\u00e4viin aineisiin.<\/p>\n

N\u00e4yt\u00e4 SS-ketjut<\/a><\/p>\n<\/div>\n

\n

\"maatalousketju-1\"<\/p>\n

Maatalousketjut<\/a><\/h3>\n

CA-, CC- ja maissiketjusarjat puimureille, puuvillanpoimintakoneille, paalaimille ja levityslaitteille. Standardi ISO 487 \/ ASME B29.100.<\/p>\n

N\u00e4yt\u00e4 maatalousketjut<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\n

\"\"<\/p>\n

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Pyyd\u00e4 tarjous \u2014 Aasialaiset vakiovalmisteiset hammaspy\u00f6r\u00e4t<\/h3>\n

M\u00e4\u00e4rit\u00e4 ketjun koko (esim. 60B), hammasluku, tyyppi (FBN tai FBK) ja rei\u00e4n halkaisija millimetrein\u00e4. Ruostumatonta SUSFBP-ter\u00e4st\u00e4 saatavilla 25B:lle. Vastaus yhden arkip\u00e4iv\u00e4n kuluessa.<\/p>\n

Pyyd\u00e4 tarjous nyt<\/a>
\nKaikki Sprocket-tuotteet<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Powerin aasialaiset vakiomuotoiset viimeistellyt ketjupy\u00f6r\u00e4t ovat JIS B1801 -standardin mukaisia. JIS B1801 on japanilainen rullaketjujen ketjupy\u00f6rien teollisuusstandardi, joka on perustana Japanissa, Etel\u00e4-Koreassa, Taiwanissa, Kiinassa ja Kaakkois-Aasiassa k\u00e4ytetylle aasialaiselle standardille. JIS-ketjun mitat eroavat sek\u00e4 ANSI B29.1- ett\u00e4 DIN 8187 -standardeista rullan halkaisijan ja sis\u00e4leveyden suhteen, mik\u00e4 edellytt\u00e4\u00e4 tietty\u00e4 hammasprofiilia. Aasialaisten standardien mukaisten ketjujen ja ketjupy\u00f6rien on aina oltava saman standardin mukaisia.<\/p>","protected":false},"featured_media":236,"comment_status":"open","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"off","_et_pb_old_content":"

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25B \u2013 120B<\/p>\r\n

Chain Size Range<\/p>\r\n\r\n<\/div>\r\n

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FBN \/ FBK<\/p>\r\n

Type FBN (B) & FBK (B+F)<\/p>\r\n\r\n<\/div>\r\n

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JIS B1801<\/p>\r\n

Asian Standard<\/p>\r\n\r\n<\/div>\r\n

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ISO 9001<\/p>\r\n

Certified Quality<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n\r\n

Asian Standard Finished Bore Sprockets \u2013 Product Overview<\/h2>\r\n
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The finished bore range is produced in two hub types: FBN (Type B)<\/strong> \u2014 a straight hub with a bore, keyway and setscrew, supplied with the keyway centred on the tooth centreline (not between teeth as in some other standards). The keyway-on-tooth-centre arrangement allows the key to be visible from above when the sprocket is mounted on the shaft, making alignment checks easier. FBK (Type B+F)<\/strong> \u2014 the same hub with an additional flange, used for applications requiring positive lateral retention or attachment to a shaft shoulder.<\/p>\r\n

The range covers chain sizes 25B (3\/16\" pitch) through 120B (1\u00bd\" pitch), in simplex. Material is C45 carbon steel with induction-hardened teeth for sizes 35B and above. For 25B light-duty chain, the sprocket is un-hardened plain C45. Stainless steel (SUS304) variants are available for 25B (food and pharmaceutical) \u2014 designated SUSFBP. For the Asian stock bore range (NK type) see our Asian stock bore sprockets<\/a>. Browse the full sprocket category<\/a>.<\/p>\r\n\r\n<\/div>\r\n

\r\n\r\n\"Korea\r\n\r\n
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\ud83c\udf0f Asian vs ANSI vs European \u2014 same pitch, different chain<\/p>\r\n

For the same pitch (e.g. \u00bd\u2033 \/ 12.7 mm), the three standards have different roller diameters:<\/p>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Pitch \u00bd\u2033<\/th>\r\nRoller \u00d8<\/th>\r\nStandard<\/th>\r\n<\/tr>\r\n
40B (Asian\/JIS)<\/td>\r\n7.92 mm<\/td>\r\nJIS B1801<\/td>\r\n<\/tr>\r\n
#40 (American)<\/td>\r\n7.95 mm<\/td>\r\nANSI B29.1<\/td>\r\n<\/tr>\r\n
08B (European)<\/td>\r\n8.51 mm<\/td>\r\nDIN 8187<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n

\u26a0\ufe0f Do not mix chain standards \u2014 the larger DIN 08B roller will not seat correctly on Asian or ANSI tooth profiles.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n

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Keyway Location \u2014 Asian Standard Difference<\/h2>\r\n

Asian standard sprockets have the keyway machined on the tooth centreline \u2014 aligned with the midpoint of a tooth, not between teeth. This is a different convention from European DIN 8187 and American ANSI B29.1 sprockets, where the keyway is typically positioned between teeth. The difference matters for two reasons:<\/p>\r\n\r\n

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\u2714 Visual Installation Confirmation<\/p>\r\n

With the keyway on the tooth centreline, the engineer can confirm correct installation position by looking at the top of the installed sprocket \u2014 the tooth directly above the key should be centred over the keyway mark on the shaft. This visual check is particularly useful during installation of large sprockets where gauging the sprocket position is difficult.<\/p>\r\n\r\n<\/div>\r\n

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\u26a0\ufe0f Do Not Substitute European\/ANSI Sprocket<\/p>\r\n

A European or ANSI sprocket cannot be substituted for an Asian standard sprocket on Asian chain, even if the pitch and bore are the same. The tooth profile \u2014 seating curve radius, tooth width and tooth angle \u2014 differs between standards. Running mismatched chain and sprocket causes poor roller engagement, accelerated wear and premature sprocket failure within weeks of installation.<\/p>\r\n\r\n<\/div>\r\n

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\ud83d\udcd0 JIS B1301 Keyway Standard<\/p>\r\n

Keyway dimensions conform to JIS B1301 (revised 1976) \u2014 the Japanese standard for parallel keys and keyways in metric bore sizes. This is dimensionally close to DIN 6885 but uses slightly different depth proportions for small bore sizes (below 22 mm). Always use a JIS B1301 or DIN 6885 key in Asian standard sprockets \u2014 do not use ASME B17.1 inch keys, which have different width-to-depth ratios.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n

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Key:<\/strong> Z = teeth \u00a0|\u00a0 De = tip diameter (mm) \u00a0|\u00a0 Dp = pitch circle diameter (mm) \u00a0|\u00a0 BD = bore diameter options (mm) \u00a0|\u00a0 BL = bore length (mm) \u00a0|\u00a0 a = keyway width (mm) \u00a0|\u00a0 FBN = Type B hub; FBK = Type B with flange; SUSFBP = SUS304 stainlessFinished Bore Sprocket Specifications \u2014 35B through 100B<\/span><\/p>\r\n\r\n<\/div>\r\n

35B \u00a0|\u00a0 Pitch 9.525 mm \u00a0|\u00a0 Roller \u00d8 5.08 mm \u00a0|\u00a0 Inner width 4.78 mm \u00a0|\u00a0 C45 hardened<\/h3>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Z<\/th>\r\nDe (mm)<\/th>\r\nDp (mm)<\/th>\r\nBD options (mm)<\/th>\r\nBL (mm)<\/th>\r\na keyway (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
9<\/td>\r\n32<\/td>\r\n27.85<\/td>\r\n*21.5 (pilot)<\/td>\r\n20<\/td>\r\n6<\/td>\r\n<\/tr>\r\n
11<\/td>\r\n38<\/td>\r\n33.81<\/td>\r\n*27 (pilot)<\/td>\r\n20<\/td>\r\n6<\/td>\r\n<\/tr>\r\n
13<\/td>\r\n44<\/td>\r\n39.80<\/td>\r\n10, 12, 14, 15, 16<\/td>\r\n20<\/td>\r\n4\u20135<\/td>\r\n<\/tr>\r\n
17<\/td>\r\n56<\/td>\r\n51.83<\/td>\r\n10, 12, 14, 15, 16<\/td>\r\n20<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
25<\/td>\r\n80<\/td>\r\n76.00<\/td>\r\n14, 15, 16<\/td>\r\n20<\/td>\r\n5<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

40B \u00a0|\u00a0 Pitch 12.70 mm \u00a0|\u00a0 Roller \u00d8 7.92 mm \u00a0|\u00a0 Inner width 7.85 mm \u00a0|\u00a0 C45 hardened<\/h3>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Z<\/th>\r\nDe (mm)<\/th>\r\nDp (mm)<\/th>\r\nBD options (mm)<\/th>\r\nBL (mm)<\/th>\r\na keyway (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
9<\/td>\r\n42<\/td>\r\n37.13<\/td>\r\n*28 (pilot)<\/td>\r\n22<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
12<\/td>\r\n55<\/td>\r\n49.07<\/td>\r\n10, 12, 14, 15, 16, 17<\/td>\r\n22<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
15<\/td>\r\n67<\/td>\r\n61.09<\/td>\r\n12, 14, 15, 16, 17, 18<\/td>\r\n22<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
17<\/td>\r\n75<\/td>\r\n69.11<\/td>\r\n12, 14, 15, 16, 17, 18, 19, 20<\/td>\r\n22<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
20<\/td>\r\n88<\/td>\r\n81.19<\/td>\r\n14, 15, 16, 17, 18, 19, 20<\/td>\r\n22<\/td>\r\n5<\/td>\r\n<\/tr>\r\n
25<\/td>\r\n108<\/td>\r\n101.33<\/td>\r\n14, 15, 17, 18, 19, 20<\/td>\r\n22<\/td>\r\n6<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

60B \u00a0|\u00a0 Pitch 19.05 mm \u00a0|\u00a0 Roller \u00d8 11.91 mm \u00a0|\u00a0 Inner width 12.07 mm \u00a0|\u00a0 C45 hardened<\/h3>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Z<\/th>\r\nDe (mm)<\/th>\r\nDp (mm)<\/th>\r\nBD options (mm)<\/th>\r\nBL (mm)<\/th>\r\na keyway (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
9<\/td>\r\n63<\/td>\r\n58.10<\/td>\r\n32<\/td>\r\n35<\/td>\r\n8<\/td>\r\n<\/tr>\r\n
11<\/td>\r\n76<\/td>\r\n71.56<\/td>\r\n30, 32, 35<\/td>\r\n35<\/td>\r\n8<\/td>\r\n<\/tr>\r\n
13<\/td>\r\n89<\/td>\r\n84.92<\/td>\r\n30, 32, 35, 38, 40<\/td>\r\n35<\/td>\r\n10<\/td>\r\n<\/tr>\r\n
17<\/td>\r\n114<\/td>\r\n109.97<\/td>\r\n32, 35, 38, 40, 42, 45<\/td>\r\n35<\/td>\r\n10<\/td>\r\n<\/tr>\r\n
21<\/td>\r\n139<\/td>\r\n135.64<\/td>\r\n35, 38, 40, 42, 45, 48<\/td>\r\n40<\/td>\r\n12<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

80B \u00a0|\u00a0 Pitch 25.40 mm \u00a0|\u00a0 Roller \u00d8 15.88 mm \u00a0|\u00a0 Inner width 15.88 mm \u00a0|\u00a0 C45 hardened<\/h3>\r\n
\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Z<\/th>\r\nDe (mm)<\/th>\r\nDp (mm)<\/th>\r\nBD options (mm)<\/th>\r\nBL (mm)<\/th>\r\na keyway (mm)<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
9<\/td>\r\n84<\/td>\r\n77.52<\/td>\r\n44 (pilot)<\/td>\r\n42<\/td>\r\n12<\/td>\r\n<\/tr>\r\n
13<\/td>\r\n117<\/td>\r\n113.27<\/td>\r\n40, 42, 45, 48<\/td>\r\n42<\/td>\r\n12<\/td>\r\n<\/tr>\r\n
17<\/td>\r\n151<\/td>\r\n146.28<\/td>\r\n42, 45, 48, 50<\/td>\r\n42<\/td>\r\n14<\/td>\r\n<\/tr>\r\n
21<\/td>\r\n186<\/td>\r\n180.75<\/td>\r\n45, 48, 50, 55<\/td>\r\n50<\/td>\r\n14<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n<\/div>\r\n

* = pilot bore (no keyway). Full bore range and stainless SUSFBP25B variants available \u2014 contact us. 50B, 100B and 120B also available. Specify chain size, tooth count, type (FBN or FBK) and bore diameter mm when ordering.<\/p>\r\n\r\n

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Technical Features<\/h2>\r\n\"Finished-Bore-Sprockets-1\"\r\n
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JIS B1801 Tooth Profile<\/h3>\r\n

The tooth profile conforms to JIS B1801 \u2014 required for correct engagement with Asian standard roller chain. The seating curve radius and tooth width differ from DIN 8187 and ANSI B29.1 because the Asian standard roller diameter is slightly different from both. Running Asian chain on European or American sprockets (or vice versa) causes incorrect roller seating and premature wear even where the pitch is identical. Pair with JIS B1801 Asian standard roller chain<\/a>.<\/p>\r\n\r\n<\/div>\r\n

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C45 with Hardened Teeth \u2014 35B and Above<\/h3>\r\n

All FBN and FBK sprockets in 35B through 120B are C45 carbon steel with induction-hardened tooth flanks at 52\u201358 HRC. The bore is machined before the heat treatment cycle and confirmed dimensionally after hardening. 25B sprockets are lighter duty \u2014 plain C45 without tooth hardening, suitable for the light loads in 25B drive applications. SUS304 stainless variants (SUSFBP prefix) are plain bore only and are unhardened by material.<\/p>\r\n\r\n<\/div>\r\n

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FBK Flange Type \u2014 Lateral Retention<\/h3>\r\n

The FBK type adds a flange face to the hub, providing a bearing face against a shaft shoulder or collar. This is required in applications where the sprocket must be retained axially on the shaft by its own geometry rather than relying entirely on the setscrew. FBK is the standard type for chain drives in Japanese agricultural machinery and material handling equipment where the sprocket position is located by a shaft step rather than by a setscrew alone.<\/p>\r\n\r\n<\/div>\r\n

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Korea Ever-Power for Asian OEM Drives<\/h3>\r\n

Korean industrial machinery uses JIS-based chain standards for all domestic drives. Korea Ever-Power Asian standard finished bore sprockets are the correct replacement for drives in Korean-manufactured equipment across all sectors \u2014 construction machinery, agricultural equipment, industrial conveyors and textile machinery. The same hub geometry, bore sizes and keyway dimensions as the original Korean OEM specification.<\/p>\r\n\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n\r\n

Matching Chain & Related Products<\/h2>\r\n
\r\n\r\n\"JIS\r\n
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Matching Asian Standard Roller Chain<\/p>\r\n

Match your FBN\/FBK sprocket with JIS B1801 Asian standard roller chain in the same chain number (35B, 40B, 60B, 80B etc.). Standard, H-series, self-lubricating and SUS304 stainless variants available. Never run European DIN 8187 or ANSI B29.1 chain on Asian sprockets.<\/p>\r\nView Driving Chains \u2192<\/a>\r\n\r\n<\/div>\r\n<\/div>\r\n

\r\n
\r\n\r\n\"Korea\r\n

Leaf Chains<\/a><\/h3>\r\n

BL and LH series leaf chains for forklift masts, industrial door drives, and hoist mechanisms. Tensile ratings from 11 kN to over 1,600 kN.<\/p>\r\nView Leaf Chains<\/a>\r\n\r\n<\/div>\r\n

\r\n\r\n\"Korea\r\n

Engineering Chains<\/a><\/h3>\r\n

Welded steel, cast iron, and forged chains for heavy-duty industrial conveying in steel mills, cement plants, mining, and chemical processing.<\/p>\r\nView Engineering Chains<\/a>\r\n\r\n<\/div>\r\n

\r\n\r\n\"Korea\r\n

Stainless Steel Chains<\/a><\/h3>\r\n

SUS304 and SUS316L roller chains for food, pharmaceutical, and chemical environments. Suitable for washdown, elevated temperature, and corrosive media.<\/p>\r\nView SS Chains<\/a>\r\n\r\n<\/div>\r\n

\r\n\r\n\"agricultural-chain-1\"\r\n

Agricultural Chains<\/a><\/h3>\r\n

CA, CC, and corn-chain series for combine harvesters, cotton pickers, balers, and spreading equipment. ISO 487 \/ ASME B29.100 standard.<\/p>\r\nView Agricultural Chains<\/a>\r\n\r\n<\/div>\r\n<\/div>\r\n\r\n

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Request a Quote \u2014 Asian Standard Finished Bore Sprockets<\/h3>\r\n

Specify chain size (e.g. 60B), tooth count, type (FBN or FBK), bore diameter in mm. Stainless SUSFBP available for 25B. Response within one working day.<\/p>\r\n\r\n

Get a Quote Now<\/a>\r\nAll Sprocket Products<\/a><\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>","_et_gb_content_width":""},"product_brand":[],"product_cat":[24],"product_tag":[],"class_list":["post-259","product","type-product","status-publish","has-post-thumbnail","product_cat-sprockets","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/product\/259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/comments?post=259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/media\/236"}],"wp:attachment":[{"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/media?parent=259"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/product_brand?post=259"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/product_cat?post=259"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/5speedtransmission.com\/fi\/wp-json\/wp\/v2\/product_tag?post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}