{"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\/ceb\/product\/finished-bore-sprockets-asian-standard\/","title":{"rendered":"Nahuman nga Bore Sprockets Asian Standard"},"content":{"rendered":"
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<\/p>\n

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

Sakup sa Gidak-on sa Kadena<\/p>\n<\/div>\n

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FBN \/ FBK<\/p>\n

Tipo FBN (B) ug FBK (B+F)<\/p>\n<\/div>\n

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JIS B1801<\/p>\n

Estandar sa Asya<\/p>\n<\/div>\n

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ISO 9001<\/p>\n

Sertipikado nga Kalidad<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Asian Standard Finished Bore Sprockets \u2013 Kinatibuk-ang Pagtan-aw sa Produkto<\/h2>\n
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Ang nahuman nga bore range gihimo sa duha ka klase sa hub: FBN (Tipo B)<\/strong> \u2014 usa ka tul-id nga hub nga adunay bore, keyway ug setscrew, nga gihatag uban ang keyway nga nakasentro sa sentro sa ngipon (dili taliwala sa mga ngipon sama sa ubang mga sumbanan). Ang keyway-on-tooth-center nga pagkahan-ay nagtugot sa yawe nga makita gikan sa ibabaw kung ang sprocket naka-mount sa shaft, nga naghimo sa mga pagsusi sa alignment nga mas sayon. FBK (Tipo B+F)<\/strong> \u2014 ang samang hub nga adunay dugang nga flange, nga gigamit para sa mga aplikasyon nga nanginahanglan og positive lateral retention o pagkabit sa usa ka shaft shoulder.<\/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 Mga sprocket sa stock bore sa Asya<\/a>. Pag-browse sa tibuok nga kategorya sa sprocket<\/a>.<\/p>\n

 <\/p>\n<\/div>\n

\"Korea
\n<\/p>\n
\n

\ud83c\udf0f Asyano batok ANSI batok Europeo \u2014 parehas nga tono, lahi nga kadena<\/p>\n

Para sa parehas nga pitch (pananglitan \u00bd\u2033 \/ 12.7 mm), ang tulo ka standard adunay lain-laing diametro sa roller:<\/p>\n\n\n\n\n\n\n
Giladmon \u00bd pulgada<\/th>\nRoller \u00d8<\/th>\nSumbanan<\/th>\n<\/tr>\n
40B (Asyano\/JIS)<\/td>\n7.92 milimetro<\/td>\nJIS B1801<\/td>\n<\/tr>\n
#40 (Amerikano)<\/td>\n7.95 milimetro<\/td>\nANSI B29.1<\/td>\n<\/tr>\n
08B (Europeo)<\/td>\n8.51 milimetro<\/td>\nDIN 8187<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u26a0\ufe0f Ayaw isagol ang mga standard nga kadena \u2014 ang mas dako nga DIN 08B roller dili mohaom sa saktong paagi sa mga Asian o ANSI tooth profile.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Lokasyon sa Keyway \u2014 Kalainan sa Asian Standard<\/h2>\n

Ang mga Asian standard sprocket adunay keyway nga gi-machine sa centreline sa ngipon \u2014 gihan-ay sa tunga-tunga sa ngipon, dili taliwala sa mga ngipon. Lahi kini nga kombensiyon gikan sa European DIN 8187 ug American ANSI B29.1 sprockets, diin ang keyway kasagarang gibutang taliwala sa mga ngipon. Ang kalainan importante tungod sa duha ka rason:<\/p>\n

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\u2714 Kumpirmasyon sa Biswal nga Pag-instalar<\/p>\n

Uban sa keyway nga naa sa sentro sa ngipon, makumpirma sa engineer ang saktong posisyon sa pag-instalar pinaagi sa pagtan-aw sa ibabaw sa na-instalar nga sprocket \u2014 ang ngipon nga direkta sa ibabaw sa yawe kinahanglan nga naa sa sentro sa marka sa keyway sa shaft. Kini nga biswal nga pagsusi labi ka mapuslanon sa panahon sa pag-instalar sa dagkong mga sprocket diin lisod ang pagsukod sa posisyon sa sprocket.<\/p>\n<\/div>\n

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\u26a0\ufe0f Ayaw Ilisi ang European\/ANSI Sprocket<\/p>\n

Ang European o ANSI sprocket dili mahimong ilisan sa Asian standard sprocket sa Asian chain, bisan kung parehas ang pitch ug bore. Ang tooth profile \u2014 seating curve radius, tooth width ug tooth angle \u2014 managlahi tali sa mga standard. Ang pagpadagan nga dili magkatugma sa chain ug sprocket hinungdan sa dili maayo nga roller engagement, paspas nga pagkaguba ug sayo nga pagkaguba sa sprocket sulod sa mga semana human sa pag-instalar.<\/p>\n<\/div>\n

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\ud83d\udcd0 JIS B1301 Sumbanan sa Keyway<\/p>\n

Ang mga sukod sa keyway nahiuyon sa JIS B1301 (gibag-o niadtong 1976) \u2014 ang Japanese standard para sa parallel keys ug keyways sa metric bore sizes. Kini halos parehas sa DIN 6885 apan naggamit og gamay nga lahi nga depth proportion para sa gagmay nga bore sizes (ubos sa 22 mm). Kanunay gamita ang JIS B1301 o DIN 6885 key sa Asian standard sprockets \u2014 ayaw gamita ang ASME B17.1 inch keys, nga adunay lain-laing width-to-depth ratios.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Yawe:<\/strong> Z = ngipon | De = diametro sa tumoy (mm) | Dp = diametro sa lingin sa pitch (mm) | BD = mga kapilian sa diametro sa lungag (mm) | BL = gitas-on sa lungag (mm) | a = gilapdon sa keyway (mm) | FBN = Type B hub; FBK = Type B nga adunay flange; SUSFBP = SUS304 stainlessMga Espisipikasyon sa Nahuman nga Bore Sprocket \u2014 35B hangtod 100B<\/span><\/p>\n<\/div>\n

 <\/p>\n

35B | Gilapdon 9.525 mm | Roller \u00d8 5.08 mm | Lapad sa sulod 4.78 mm | Gipagahi ang C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nMga kapilian sa BD (mm)<\/th>\nBL (mm)<\/th>\nusa ka agianan sa yawe (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n32<\/td>\n27.85<\/td>\n*21.5 (piloto)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
11<\/td>\n38<\/td>\n33.81<\/td>\n*27 (piloto)<\/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 | Giladmon 12.70 mm | Roller \u00d8 7.92 mm | Lapad sa sulod 7.85 mm | Gipagahi ang C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nMga kapilian sa BD (mm)<\/th>\nBL (mm)<\/th>\nusa ka agianan sa yawe (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n42<\/td>\n37.13<\/td>\n*28 (piloto)<\/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 | Giladmon 19.05 mm | Roller \u00d8 11.91 mm | Lapad sa sulod 12.07 mm | Gipagahi ang C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nMga kapilian sa BD (mm)<\/th>\nBL (mm)<\/th>\nusa ka agianan sa yawe (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 | Giladmon 25.40 mm | Roller \u00d8 15.88 mm | Lapad sa sulod 15.88 mm | Gipagahi ang C45<\/h3>\n
\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nMga kapilian sa BD (mm)<\/th>\nBL (mm)<\/th>\nusa ka agianan sa yawe (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n84<\/td>\n77.52<\/td>\n44 (piloto)<\/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

* = pilot bore (walay keyway). Anaa ang kompletong bore range ug stainless SUSFBP25B nga mga variant \u2014 kontaka kami. Anaa usab ang 50B, 100B ug 120B. Ipiho ang gidak-on sa kadena, gidaghanon sa ngipon, tipo (FBN o FBK) ug diametro sa bore mm kon mag-order.<\/p>\n

<\/p>\n

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\"\"<\/p>\n

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Teknikal nga mga Kinaiya<\/h2>\n

\"Nahuman<\/p>\n

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JIS B1801 Profile sa Ngipin<\/h3>\n

Ang profile sa ngipon nahiuyon sa JIS B1801 \u2014 gikinahanglan para sa saktong pagkabit sa Asian standard roller chain. Ang radius sa seating curve ug gilapdon sa ngipon lahi sa DIN 8187 ug ANSI B29.1 tungod kay ang Asian standard roller diameter gamay nga lahi sa duha. Ang pagpadagan sa Asian chain sa European o American sprockets (o vice versa) hinungdan sa dili sakto nga roller seating ug sayo nga pagkaguba bisan kung parehas ang pitch. Ipares sa JIS B1801 Asian standard roller chain<\/a>.<\/p>\n<\/div>\n

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C45 nga adunay Gipagahi nga Ngipon \u2014 35B ug Pataas<\/h3>\n

Ang tanang FBN ug FBK sprockets sa 35B hangtod 120B hinimo sa C45 carbon steel nga adunay induction-hardened tooth flanks sa 52\u201358 HRC. Ang bore gi-machine sa dili pa ang heat treatment cycle ug gikumpirma ang dimensiyon niini human sa pag-hardening. Ang 25B sprockets mas gaan ang duty \u2014 plain C45 nga walay tooth hardening, angay para sa gaan nga load sa 25B drive applications. Ang SUS304 stainless variants (SUSFBP prefix) kay plain bore lang ug wala gipagahi sa materyal.<\/p>\n<\/div>\n

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Tipo sa FBK Flange \u2014 Pagpabilin sa Lateral<\/h3>\n

Ang tipo nga FBK nagdugang og flange face sa hub, nga naghatag og bearing face batok sa abaga o kwelyo sa shaft. Gikinahanglan kini sa mga aplikasyon diin ang sprocket kinahanglan nga magpabilin nga axial sa shaft pinaagi sa kaugalingon nga geometry imbes nga magsalig sa hingpit sa setscrew. Ang FBK mao ang standard nga tipo para sa chain drives sa makinarya sa agrikultura sa Hapon ug kagamitan sa pagdumala sa materyal diin ang posisyon sa sprocket nahimutang sa usa ka shaft step imbes nga sa usa ka setscrew lamang.<\/p>\n<\/div>\n

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Korea Ever-Power para sa mga Asian OEM Drive<\/h3>\n

Ang makinarya sa industriya sa Korea naggamit og mga sumbanan sa kadena nga nakabase sa JIS para sa tanang domestic drive. Ang Korea Ever-Power Asian standard finished bore sprockets mao ang saktong kapuli sa mga drive sa mga kagamitan nga gihimo sa Korea sa tanang sektor \u2014 makinarya sa konstruksyon, kagamitan sa agrikultura, mga conveyor sa industriya ug makinarya sa tela. Parehas ang geometry sa hub, gidak-on sa bore ug mga dimensyon sa keyway sama sa orihinal nga espesipikasyon sa OEM sa Korea.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Kadena nga Parehas ug May Kalabutan nga mga Produkto<\/h2>\n
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\"JIS<\/p>\n

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Pagpares sa Asian Standard Roller Chain<\/p>\n

Ipares ang imong FBN\/FBK sprocket sa JIS B1801 Asian standard roller chain nga parehas og numero sa kadena (35B, 40B, 60B, 80B ug uban pa). Adunay mga variant nga Standard, H-series, self-lubricating ug SUS304 stainless. Ayaw gyud paggamit og European DIN 8187 o ANSI B29.1 chain sa Asian sprockets.<\/p>\n

Tan-awa ang mga Kadena sa Pagmaneho \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

\n
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\"Mga<\/p>\n

Mga Kadena sa Dahon<\/a><\/h3>\n

Mga kadena sa dahon nga BL ug LH series para sa mga forklift mast, industrial door drive, ug mga mekanismo sa hoist. Ang tensile ratings gikan sa 11 kN hangtod sa kapin sa 1,600 kN.<\/p>\n

Tan-awa ang mga Kadena sa Dahon<\/a><\/p>\n<\/div>\n

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\"Mga<\/p>\n

Mga Kadena sa Inhenyeriya<\/a><\/h3>\n

Giwelding nga asero, cast iron, ug forged chains para sa heavy-duty industrial conveying sa mga steel mill, planta sa semento, pagmina, ug pagproseso sa kemikal.<\/p>\n

Tan-awa ang mga Kadena sa Inhenyeriya<\/a><\/p>\n<\/div>\n

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\"Korea<\/p>\n

Mga Kadena nga Stainless Steel<\/a><\/h3>\n

Mga SUS304 ug SUS316L roller chain para sa pagkaon, parmasyutiko, ug kemikal nga palibot. Haom para sa paghugas, taas nga temperatura, ug mga corrosive media.<\/p>\n

Tan-awa ang mga SS Chain<\/a><\/p>\n<\/div>\n

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\"kadena-sa-agrikultura-1\"<\/p>\n

Mga Kadena sa Agrikultura<\/a><\/h3>\n

CA, CC, ug corn-chain series para sa mga combine harvester, cotton picker, baler, ug spreading equipment. ISO 487 \/ ASME B29.100 standard.<\/p>\n

Tan-awa ang mga Kadena sa Agrikultura<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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\"\"<\/p>\n

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Paghangyo og Kwotasyon \u2014 Asian Standard Finished Bore Sprockets<\/h3>\n

Ipiho ang gidak-on sa kadena (pananglitan 60B), gidaghanon sa ngipon, tipo (FBN o FBK), diametro sa lungag sa mm. Ang Stainless SUSFBP anaa para sa 25B. Ang tubag sulod sa usa ka adlaw sa trabaho.<\/p>\n

Pagkuha og Kwotasyon Karon<\/a>
\nTanang Produkto sa Sprocket<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Ang Korea Ever-Power Asian standard finished bore sprockets nagsunod sa JIS B1801 \u2014 ang Japanese Industrial Standard para sa roller chain sprockets, nga mao ang basehan sa Asian standard nga gigamit sa tibuok Japan, South Korea, Taiwan, China ug Southeast Asia. Ang mga dimensyon sa JIS chain lahi sa ANSI B29.1 ug DIN 8187 sa roller diameter ug inner width, nga nanginahanglan og espesipikong tooth profile \u2014 ang Asian standard chain ug sprockets kinahanglan kanunay nga ipares sa parehas nga standard.<\/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
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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

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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\/ceb\/wp-json\/wp\/v2\/product\/259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/comments?post=259"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/media\/236"}],"wp:attachment":[{"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/media?parent=259"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/product_brand?post=259"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/product_cat?post=259"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/5speedtransmission.com\/ceb\/wp-json\/wp\/v2\/product_tag?post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}