{"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\/et\/toode\/finished-bore-sprockets-asian-standard\/","title":{"rendered":"Valmis puuriga ketirattad Aasia standard"},"content":{"rendered":"
\n

<\/p>\n

\n
\n

25B\u2013120B<\/p>\n

Keti suuruste vahemik<\/p>\n<\/div>\n

\n

FBN \/ FBK<\/p>\n

T\u00fc\u00fcp FBN (B) ja FBK (B+F)<\/p>\n<\/div>\n

\n

JIS B1801<\/p>\n

Aasia standard<\/p>\n<\/div>\n

\n

ISO 9001<\/p>\n

Sertifitseeritud kvaliteet<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Aasia standardse viimistletud avaga hammasrattad \u2013 toote \u00fclevaade<\/h2>\n
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\n

Valmis l\u00e4bim\u00f5\u00f5duga rattaid toodetakse kahes rummut\u00fc\u00fcbis: FBN (t\u00fc\u00fcp B)<\/strong> \u2014 sirge rumm ava, kiilusoone ja kinnituskruviga, mille kiilusoone on tsentreeritud hamba keskjoonele (mitte hammaste vahele, nagu m\u00f5nes teises standardis). Kiilusoone hamba keskel paigutus v\u00f5imaldab kiilu \u00fclaltpoolt n\u00e4htavaks teha, kui ketiratas on v\u00f5llile paigaldatud, mis lihtsustab joonduse kontrollimist. FBK (t\u00fc\u00fcp B+F)<\/strong> \u2014 sama rumm t\u00e4iendava \u00e4\u00e4rikuga, mida kasutatakse rakendustes, mis n\u00f5uavad positiivset k\u00fclgmist fikseerimist v\u00f5i kinnitust v\u00f5lli \u00f5la k\u00fclge.<\/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 Aasia standardse avaga ketirattad<\/a>Sirvi t\u00e4ishammasratta kategooria<\/a>.<\/p>\n

 <\/p>\n<\/div>\n

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

\ud83c\udf0f Aasia vs ANSI vs Euroopa \u2014 sama helik\u00f5rgus, erinev ahel<\/p>\n

Sama sammu (nt \u00bd\u2033 \/ 12,7 mm) korral on kolmel standardil erinevad rullide l\u00e4bim\u00f5\u00f5dud:<\/p>\n\n\n\n\n\n\n
Samm \u00bd\u2033<\/th>\nRulli \u00d8<\/th>\nStandardne<\/th>\n<\/tr>\n
40B (Aasia\/JIS)<\/td>\n7,92 mm<\/td>\nJIS B1801<\/td>\n<\/tr>\n
#40 (Ameerika)<\/td>\n7,95 mm<\/td>\nANSI B29.1<\/td>\n<\/tr>\n
08B (Euroopa)<\/td>\n8,51 mm<\/td>\nDIN 8187<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u26a0\ufe0f \u00c4rge segage ketistandardeid \u2013 suurem DIN 08B rull ei sobi Aasia v\u00f5i ANSI hambaprofiilidele \u00f5igesti.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Kiiluava asukoht \u2014 Aasia standardne erinevus<\/h2>\n

Aasia standardsetel ketiratastel on kiiluava freesitud hamba keskjoonele \u2013 hamba keskpunktiga joondatud, mitte hammaste vahele. See erineb tavap\u00e4rastest standarditest nagu Euroopa DIN 8187 ja Ameerika ANSI B29.1 ketiratastel, kus kiiluava paikneb tavaliselt hammaste vahel. See erinevus on oluline kahel p\u00f5hjusel:<\/p>\n

\n
\n

\u2714 Visuaalne paigalduskinnitus<\/p>\n

Kui kiiluava on hamba keskjoonel, saab insener \u00f5ige paigaldusasendi kinnitada, vaadates paigaldatud ketiratta \u00fclaosa \u2013 otse kiilu kohal asuv hammas peaks olema v\u00f5lli kiiluava m\u00e4rgistuse kohal. See visuaalne kontroll on eriti kasulik suurte ketirataste paigaldamisel, kus ketiratta asendi m\u00f5\u00f5tmine on keeruline.<\/p>\n<\/div>\n

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\u26a0\ufe0f \u00c4rge asendage Euroopa\/ANSI hammasratast<\/p>\n

Euroopa v\u00f5i ANSI ketiratast ei saa Aasia ketil Aasia standardile vastava ketirattaga asendada, isegi kui samm ja l\u00e4bim\u00f5\u00f5t on samad. Hambaprofiil \u2013 haakek\u00f5vera raadius, hamba laius ja hambanurk \u2013 on standardite l\u00f5ikes erinev. Sobimatu keti ja ketiratta kasutamine p\u00f5hjustab rullide halba haardumist, kiirenenud kulumist ja ketiratta enneaegset riket juba n\u00e4dalate jooksul p\u00e4rast paigaldamist.<\/p>\n<\/div>\n

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\ud83d\udcd0 JIS B1301 kiiluava standard<\/p>\n

Kiiluava m\u00f5\u00f5tmed vastavad standardile JIS B1301 (muudetud 1976) \u2013 Jaapani standardile meetriliste ava suuruste paralleelkiilude ja kiiluavade kohta. See on m\u00f5\u00f5tmetelt l\u00e4hedane standardile DIN 6885, kuid kasutab v\u00e4ikeste ava suuruste (alla 22 mm) puhul veidi erinevaid s\u00fcgavusproportsioone. Aasia standardsetes ketiratastes kasutage alati JIS B1301 v\u00f5i DIN 6885 kiilu \u2013 \u00e4rge kasutage ASME B17.1-tolliseid kiile, millel on erinev laiuse ja s\u00fcgavuse suhe.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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V\u00f5ti:<\/strong> Z = hambad | De = otsa l\u00e4bim\u00f5\u00f5t (mm) | Dp = sammringi l\u00e4bim\u00f5\u00f5t (mm) | BD = ava l\u00e4bim\u00f5\u00f5du valikud (mm) | BL = ava pikkus (mm) | a = kiilusoone laius (mm) | FBN = B-t\u00fc\u00fcpi rumm; FBK = B-t\u00fc\u00fcpi \u00e4\u00e4rikuga; SUSFBP = SUS304 roostevaba terasValmis avaga hammasratta spetsifikatsioonid \u2014 35B kuni 100B<\/span><\/p>\n<\/div>\n

 <\/p>\n

35B | Samm 9,525 mm | Rulli \u00d8 5,08 mm | Siselaius 4,78 mm | Karastatud C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nL\u00e4bim\u00f5\u00f5t (mm)<\/th>\nBD valikud (mm)<\/th>\nLaius (mm)<\/th>\nkiiluava (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n32<\/td>\n27.85<\/td>\n*21,5 (pilootversioon)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
11<\/td>\n38<\/td>\n33.81<\/td>\n*27 (piloot)<\/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 | Samm 12,70 mm | Rulli \u00d8 7,92 mm | Siselaius 7,85 mm | Karastatud C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nL\u00e4bim\u00f5\u00f5t (mm)<\/th>\nBD valikud (mm)<\/th>\nLaius (mm)<\/th>\nkiiluava (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n42<\/td>\n37.13<\/td>\n*28 (pilootversioon)<\/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 | Samm 19,05 mm | Rulli \u00d8 11,91 mm | Siselaius 12,07 mm | Karastatud C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nL\u00e4bim\u00f5\u00f5t (mm)<\/th>\nBD valikud (mm)<\/th>\nLaius (mm)<\/th>\nkiiluava (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 | Samm 25,40 mm | Rulli \u00d8 15,88 mm | Siselaius 15,88 mm | Karastatud C45<\/h3>\n
\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nL\u00e4bim\u00f5\u00f5t (mm)<\/th>\nBD valikud (mm)<\/th>\nLaius (mm)<\/th>\nkiiluava (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n84<\/td>\n77.52<\/td>\n44 (piloot)<\/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

* = eelava (kiiluta). Saadaval on t\u00e4ielik avade valik ja roostevabast terasest SUSFBP25B variandid \u2014 v\u00f5tke meiega \u00fchendust. Saadaval on ka 50B, 100B ja 120B. Tellimuse esitamisel t\u00e4psustage keti suurus, hammaste arv, t\u00fc\u00fcp (FBN v\u00f5i FBK) ja ava l\u00e4bim\u00f5\u00f5t (mm).<\/p>\n

<\/p>\n

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\"\"<\/p>\n

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Tehnilised omadused<\/h2>\n

\"Valmis-avaga-ketirattad-1\"<\/p>\n

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JIS B1801 hambaprofiil<\/h3>\n

Hambaprofiil vastab standardile JIS B1801 \u2014 see on vajalik Aasia standardile vastava rullketiga korrektseks haardumiseks. Hamba istme k\u00f5verusraadius ja hamba laius erinevad standarditest DIN 8187 ja ANSI B29.1, kuna Aasia standardile vastav rulliku l\u00e4bim\u00f5\u00f5t erineb m\u00f5lemast veidi. Aasia keti kasutamine Euroopa v\u00f5i Ameerika ketiratastel (v\u00f5i vastupidi) p\u00f5hjustab rulliku eba\u00f5iget haardumist ja enneaegset kulumist isegi identse sammu korral. Kombineerige koos JIS B1801 Aasia standardne rullkett<\/a>.<\/p>\n<\/div>\n

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C45 karastatud hammastega \u2014 35B ja k\u00f5rgem<\/h3>\n

K\u00f5ik FBN ja FBK ketirattad suurustes 35B kuni 120B on valmistatud C45 s\u00fcsinikterasest, mille hambak\u00fcljed on induktsioonkarastatud k\u00f5vadusega 52\u201358 HRC. Ava freesitakse enne kuumt\u00f6\u00f6tlusts\u00fcklit ja selle m\u00f5\u00f5tmed kinnitatakse p\u00e4rast karastamist. 25B ketirattad on kergema koormusega \u2013 tavalised C45 ketirattad ilma hammaste karastamiseta, sobivad kergeteks koormusteks 25B ajamirakendustes. SUS304 roostevabast terasest variandid (SUSFBP eesliide) on ainult liugeservadega ja materjali poolt karastamata.<\/p>\n<\/div>\n

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FBK \u00e4\u00e4riku t\u00fc\u00fcp \u2014 k\u00fclgmine kinnitus<\/h3>\n

FBK t\u00fc\u00fcp lisab rummule \u00e4\u00e4rikupinna, mis pakub tugipinda v\u00f5lli \u00f5la v\u00f5i krae vastu. See on vajalik rakendustes, kus ketiratas peab olema aksiaalselt v\u00f5llil kinnitatud oma geomeetria abil, mitte t\u00e4ielikult kinnituskruvi abil. FBK on Jaapani p\u00f5llumajandusmasinate ja materjalik\u00e4itlusseadmete keti\u00fclekannete standardt\u00fc\u00fcp, kus ketiratta asukoht m\u00e4\u00e4ratakse v\u00f5lli astme, mitte ainult kinnituskruvi abil.<\/p>\n<\/div>\n

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Korea Ever-Power Aasia OEM-draividele<\/h3>\n

Korea t\u00f6\u00f6stusmasinad kasutavad k\u00f5igi kodumaiste ajamite puhul JIS-p\u00f5hiseid ketistandardeid. Korea Ever-Poweri Aasia standardile vastavad viimistletud avaga ketirattad on \u00f5iged asenduseks Korea toodetud seadmete ajamitele k\u00f5igis sektorites \u2013 ehitusmasinad, p\u00f5llumajandusmasinad, t\u00f6\u00f6stuskonveierid ja tekstiilimasinad. Sama rummu geomeetria, ava suurused ja kiilu soone m\u00f5\u00f5tmed nagu algsel Korea OEM-spetsifikatsioonil.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Sobiv kett ja seotud tooted<\/h2>\n
\n

\"JIS<\/p>\n

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Sobiv Aasia standardrullkett<\/p>\n

Valige oma FBN\/FBK ketiratas sama ketinumbriga JIS B1801 Aasia standardile vastava rullketiga (35B, 40B, 60B, 80B jne). Saadaval on standardsed, H-seeria, ise\u00f5litavad ja SUS304 roostevabast terasest variandid. \u00c4rge kunagi kasutage Aasia ketiratastel Euroopa DIN 8187 v\u00f5i ANSI B29.1 ketti.<\/p>\n

Vaata veoketid \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

\n
\n

\"Korea<\/p>\n

Lehtketid<\/a><\/h3>\n

BL ja LH seeria lehtketid kahvelt\u00f5stukite mastidele, t\u00f6\u00f6stuslike uste ajamitele ja t\u00f5stemehhanismidele. T\u00f5mbetugevus alates 11 kN kuni \u00fcle 1600 kN.<\/p>\n

Vaata lehekette<\/a><\/p>\n<\/div>\n

\n

\"Korea<\/p>\n

Inseneriketid<\/a><\/h3>\n

Keevitatud terasest, malmist ja sepistatud ketid raskeveokite t\u00f6\u00f6stuslikuks transportimiseks terasetehastes, tsemenditehastes, kaevanduses ja keemiat\u00f6\u00f6stuses.<\/p>\n

Vaata insenerikette<\/a><\/p>\n<\/div>\n

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\"Korea<\/p>\n

Roostevabast terasest ketid<\/a><\/h3>\n

SUS304 ja SUS316L rullketid toidu-, farmaatsia- ja keemiakeskkondadesse. Sobib kasutamiseks loputusmeetodil, k\u00f5rgel temperatuuril ja s\u00f6\u00f6vitavas keskkonnas.<\/p>\n

Vaata SS-kette<\/a><\/p>\n<\/div>\n

\n

\"p\u00f5llumajanduskett-1\"<\/p>\n

P\u00f5llumajandusketid<\/a><\/h3>\n

CA, CC ja maisiketi seeria kombainidele, puuvillakoristusmasinatele, baleritele ja laotusseadmetele. Standard ISO 487 \/ ASME B29.100.<\/p>\n

Vaata p\u00f5llumajanduskette<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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\"\"<\/p>\n

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K\u00fcsi pakkumist \u2014 Aasia standardse viimistletud avaga hammasrattad<\/h3>\n

T\u00e4psustage keti suurus (nt 60B), hammaste arv, t\u00fc\u00fcp (FBN v\u00f5i FBK), ava l\u00e4bim\u00f5\u00f5t millimeetrites. Roostevabast terasest SUSFBP on saadaval 25B jaoks. Vastus \u00fche t\u00f6\u00f6p\u00e4eva jooksul.<\/p>\n

K\u00fcsi pakkumist kohe<\/a>
\nK\u00f5ik Sprocketi tooted<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Korea Ever-Poweri Aasia standardile vastavad viimistletud avaga ketirattad vastavad standardile JIS B1801 \u2013 Jaapani t\u00f6\u00f6stusstandardile rullkettide ketirataste jaoks, mis on aluseks Aasia standardile, mida kasutatakse kogu Jaapanis, L\u00f5una-Koreas, Taiwanis, Hiinas ja Kagu-Aasias. JIS-keti m\u00f5\u00f5tmed erinevad nii ANSI B29.1 kui ka DIN 8187 standardist rulli l\u00e4bim\u00f5\u00f5du ja sisemise laiuse poolest, n\u00f5udes spetsiifilist hambaprofiili \u2013 Aasia standardile vastavad ketid ja ketirattad peavad alati vastama samale standardile.<\/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

\r\n

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