{"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\/bs\/proizvod\/finished-bore-sprockets-asian-standard\/","title":{"rendered":"Azijski standard lan\u010danika sa gotovim provrtom"},"content":{"rendered":"
\n

<\/p>\n

\n
\n

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

Raspon veli\u010dina lanca<\/p>\n<\/div>\n

\n

FBN \/ FBK<\/p>\n

Tip FBN (B) i FBK (B+F)<\/p>\n<\/div>\n

\n

JIS B1801<\/p>\n

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

\n

ISO 9001<\/p>\n

Certificirani kvalitet<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Azijski standardni lan\u010danici s obra\u0111enim provrtom \u2013 Pregled proizvoda<\/h2>\n
\n
\n

Asortiman gotovih otvora proizvodi se u dva tipa glav\u010dina: FBN (Tip B)<\/strong> \u2014 ravna glav\u010dina s otvorom, \u017eljebom za klin i vijkom za pode\u0161avanje, isporu\u010duje se s \u017eljebom za klin centriranom na sredi\u0161njoj liniji zuba (ne izme\u0111u zuba kao u nekim drugim standardima). Raspored \u017eljeba za klin na sredini zuba omogu\u0107ava da klin bude vidljiv odozgo kada je lan\u010danik montiran na osovinu, \u0161to olak\u0161ava provjeru poravnanja. FBK (Tip B+F)<\/strong> \u2014 ista glav\u010dina s dodatnom prirubnicom, koja se koristi za primjene koje zahtijevaju pozitivno bo\u010dno zadr\u017eavanje ili pri\u010dvr\u0161\u0107ivanje na rame osovine.<\/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 Azijski lan\u010danici standardnog promjera<\/a>Pregledajte kategorija punog lan\u010danika<\/a>.<\/p>\n

 <\/p>\n<\/div>\n

\"Korejski
\n<\/p>\n
\n

\ud83c\udf0f Azijski vs ANSI vs evropski \u2014 isti ton, razli\u010dit lanac<\/p>\n

Za isti korak (npr. \u00bd\u2033 \/ 12,7 mm), tri standarda imaju razli\u010dite pre\u010dnike valjaka:<\/p>\n\n\n\n\n\n\n
Nagib \u00bd\u2033<\/th>\nValjak \u00d8<\/th>\nStandardno<\/th>\n<\/tr>\n
40B (azijski\/JIS)<\/td>\n7,92 mm<\/td>\nJIS B1801<\/td>\n<\/tr>\n
#40 (ameri\u010dki)<\/td>\n7,95 mm<\/td>\nANSI B29.1<\/td>\n<\/tr>\n
08B (Evropski)<\/td>\n8,51 mm<\/td>\nDIN 8187<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u26a0\ufe0f Nemojte mije\u0161ati standarde lanaca \u2014 ve\u0107i DIN 08B valjak ne\u0107e pravilno nasjedati na azijske ili ANSI profile zuba.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Lokacija klju\u010da - Razlika u azijskim standardima<\/h2>\n

Azijski standardni lan\u010danici imaju \u017elijeb za klin obra\u0111en na sredi\u0161njoj liniji zuba - poravnat sa sredi\u0161tem zuba, a ne izme\u0111u zuba. Ovo je druga\u010dija konvencija od evropskog DIN 8187 i ameri\u010dkog ANSI B29.1 lan\u010danika, gdje je \u017elijeb za klin obi\u010dno postavljen izme\u0111u zuba. Razlika je bitna iz dva razloga:<\/p>\n

\n
\n

\u2714 Vizuelna potvrda instalacije<\/p>\n

Kada se \u017elijeb za klin nalazi na sredi\u0161njoj liniji zuba, in\u017eenjer mo\u017ee potvrditi ispravan polo\u017eaj ugradnje gledaju\u0107i vrh ugra\u0111enog lan\u010danika - zub direktno iznad klju\u010da trebao bi biti centriran preko oznake \u017elijeba za klin na osovini. Ova vizualna provjera je posebno korisna tokom ugradnje velikih lan\u010danika gdje je mjerenje polo\u017eaja lan\u010danika te\u0161ko.<\/p>\n<\/div>\n

\n

\u26a0\ufe0f Ne zamjenjujte evropski\/ANSI lan\u010danik<\/p>\n

Evropski ili ANSI lan\u010danik ne mo\u017ee se zamijeniti za azijski standardni lan\u010danik na azijskom lancu, \u010dak i ako su korak i otvor isti. Profil zuba - radijus krivulje nalijeganja, \u0161irina zuba i ugao zuba - razlikuju se izme\u0111u standarda. Kori\u0161tenje neuskla\u0111enog lanca i lan\u010danika uzrokuje lo\u0161e spajanje valjaka, ubrzano tro\u0161enje i prerano o\u0161te\u0107enje lan\u010danika u roku od nekoliko sedmica nakon instalacije.<\/p>\n<\/div>\n

\n

\ud83d\udcd0 JIS B1301 Standard za \u017eljebove za klju\u010d<\/p>\n

Dimenzije \u017eljebova za klinove su u skladu sa JIS B1301 (revidiran 1976.) - japanskim standardom za paralelne klinove i \u017eljebove za klinove u metri\u010dkim veli\u010dinama otvora. Ovo je dimenzijski blizu DIN 6885, ali koristi malo druga\u010dije proporcije dubine za male veli\u010dine otvora (ispod 22 mm). Uvijek koristite JIS B1301 ili DIN 6885 klju\u010d u azijskim standardnim lan\u010danicima - nemojte koristiti ASME B17.1 in\u010dne klju\u010deve, koji imaju razli\u010dite odnose \u0161irine i dubine.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

\n

Klju\u010d:<\/strong> Z = zubi | De = pre\u010dnik vrha (mm) | Dp = pre\u010dnik kruga koraka (mm) | BD = opcije pre\u010dnika otvora (mm) | BL = du\u017eina otvora (mm) | a = \u0161irina \u017elijeba za klin (mm) | FBN = Glav\u010dina tipa B; FBK = Tip B sa prirubnicom; SUSFBP = Ner\u0111aju\u0107i \u010delik SUS304Specifikacije lan\u010danika sa gotovim otvorom \u2014 od 35B do 100B<\/span><\/p>\n<\/div>\n

 <\/p>\n

35B | Korak 9,525 mm | Valjak \u00d8 5,08 mm | Unutra\u0161nja \u0161irina 4,78 mm | Kaljeno C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
\u017d<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nBD opcije (mm)<\/th>\nBL (mm)<\/th>\nutor za klju\u010d (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n32<\/td>\n27.85<\/td>\n*21.5 (pilot)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
11<\/td>\n38<\/td>\n33.81<\/td>\n*27 (pilot)<\/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 | Razmak 12,70 mm | Valjak \u00d8 7,92 mm | Unutra\u0161nja \u0161irina 7,85 mm | Kaljeno C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
\u017d<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nBD opcije (mm)<\/th>\nBL (mm)<\/th>\nutor za klju\u010d (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n42<\/td>\n37.13<\/td>\n*28 (pilot)<\/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 | Razmak 19,05 mm | Valjak \u00d8 11,91 mm | Unutra\u0161nja \u0161irina 12,07 mm | Kaljeno C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
\u017d<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nBD opcije (mm)<\/th>\nBL (mm)<\/th>\nutor za klju\u010d (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 | Razmak 25,40 mm | Valjak \u00d8 15,88 mm | Unutra\u0161nja \u0161irina 15,88 mm | Kaljeno C45<\/h3>\n
\n\n\n\n\n\n\n\n\n
\u017d<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nBD opcije (mm)<\/th>\nBL (mm)<\/th>\nutor za klju\u010d (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n84<\/td>\n77.52<\/td>\n44 (pilot)<\/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 otvor (bez utora za klin). Dostupne su varijante punog otvora i varijante od nehr\u0111aju\u0107eg \u010delika SUSFBP25B \u2014 kontaktirajte nas. Dostupne su i varijante 50B, 100B i 120B. Prilikom naru\u010divanja navedite veli\u010dinu lanca, broj zuba, tip (FBN ili FBK) i pre\u010dnik otvora u mm.<\/p>\n

<\/p>\n

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\"\"<\/p>\n

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Tehni\u010dke karakteristike<\/h2>\n

\"Lan\u010danici<\/p>\n

\n
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JIS B1801 Profil zuba<\/h3>\n

Profil zuba je u skladu sa JIS B1801 \u2014 potrebnim za pravilno spajanje sa azijskim standardnim valjkastim lancem. Radijus krivulje nalijeganja i \u0161irina zuba razlikuju se od DIN 8187 i ANSI B29.1 jer se azijski standardni pre\u010dnik valjka neznatno razlikuje od oba. Kori\u0161tenje azijskog lanca na evropskim ili ameri\u010dkim lan\u010danicima (ili obrnuto) uzrokuje nepravilno nalijeganje valjka i prerano tro\u0161enje \u010dak i tamo gdje je korak lan\u010danika identi\u010dan. Uparite sa JIS B1801 Azijski standardni valjkasti lanac<\/a>.<\/p>\n<\/div>\n

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C45 sa kaljenim zubima \u2014 35B i vi\u0161e<\/h3>\n

Svi FBN i FBK lan\u010danici u veli\u010dinama od 35B do 120B su od uglji\u010dnog \u010delika C45 s indukcijski kaljenim bo\u010dnim stranama zuba na 52\u201358 HRC. Otvor se obra\u0111uje prije ciklusa termi\u010dke obrade i dimenzijski se potvr\u0111uje nakon kaljenja. Lan\u010danici 25B su za lak\u0161a optere\u0107enja - obi\u010dni C45 bez kaljenja zuba, pogodni za lagana optere\u0107enja u primjenama pogona 25B. Varijante od nehr\u0111aju\u0107eg \u010delika SUS304 (prefiks SUSFBP) su samo s obi\u010dnim otvorom i nisu kaljene materijalom.<\/p>\n<\/div>\n

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Tip prirubnice FBK \u2014 Lateralno zadr\u017eavanje<\/h3>\n

Tip FBK dodaje prirubni\u010dku povr\u0161inu glav\u010dini, pru\u017eaju\u0107i le\u017eajnu povr\u0161inu na ramenu ili prstenu vratila. Ovo je potrebno u primjenama gdje se lan\u010danik mora aksijalno dr\u017eati na vratilu vlastitom geometrijom, a ne oslanjati se u potpunosti na vijak. FBK je standardni tip za lan\u010dane pogone u japanskim poljoprivrednim ma\u0161inama i opremi za rukovanje materijalom gdje se polo\u017eaj lan\u010danika odre\u0111uje pomo\u0107u koraka vratila, a ne samo pomo\u0107u vijka.<\/p>\n<\/div>\n

\n

Korea Ever-Power za azijske OEM pogone<\/h3>\n

Korejska industrijska mehanizacija koristi JIS standarde za lance za sve doma\u0107e pogone. Korea Ever-Power lan\u010danici sa azijskim standardnim zavr\u0161enim otvorom su ispravna zamjena za pogone u opremi proizvedenoj u Koreji u svim sektorima - gra\u0111evinskim ma\u0161inama, poljoprivrednoj opremi, industrijskim transporterima i tekstilnim ma\u0161inama. Ista geometrija glav\u010dine, veli\u010dine otvora i dimenzije \u017eljeba kao i originalna korejska OEM specifikacija.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Odgovaraju\u0107i lanac i srodni proizvodi<\/h2>\n
\n

\"JIS<\/p>\n

\n

Odgovaraju\u0107i azijski standardni valjkasti lanac<\/p>\n

Uskladite svoj FBN\/FBK lan\u010danik sa JIS B1801 azijskim standardnim valjkastim lancem istog broja lanca (35B, 40B, 60B, 80B itd.). Dostupne su standardne, H-serije, samopodmazuju\u0107e i varijante od nehr\u0111aju\u0107eg \u010delika SUS304. Nikada ne koristite evropski DIN 8187 ili ANSI B29.1 lan\u010danik na azijskim lan\u010danicima.<\/p>\n

Pogledajte pogonske lance \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

\n
\n

\"Korejski<\/p>\n

Lanci od li\u0161\u0107a<\/a><\/h3>\n

Lisnati lanci serije BL i LH za jarbole vilju\u0161kara, pogone industrijskih vrata i mehanizme za dizalice. Zatezne \u010dvrsto\u0107e od 11 kN do preko 1.600 kN.<\/p>\n

Pogledajte lance od li\u0161\u0107a<\/a><\/p>\n<\/div>\n

\n

\"Korejski<\/p>\n

In\u017eenjerski lanci<\/a><\/h3>\n

Zavareni \u010deli\u010dni, liveno-gvozdeni i kovani lanci za te\u0161ki industrijski transport u \u010deli\u010danama, cementarama, rudarstvu i hemijskoj preradi.<\/p>\n

Pogledajte in\u017eenjerske lance<\/a><\/p>\n<\/div>\n

\n

\"Korejski<\/p>\n

Lanci od nehr\u0111aju\u0107eg \u010delika<\/a><\/h3>\n

Valjkasti lanci SUS304 i SUS316L za prehrambenu, farmaceutsku i hemijsku industriju. Pogodni za ispiranje, povi\u0161ene temperature i korozivne medije.<\/p>\n

Pogledajte SS lance<\/a><\/p>\n<\/div>\n

\n

\"poljoprivredni-lanac-1\"<\/p>\n

Poljoprivredni lanci<\/a><\/h3>\n

CA, CC i serije lanaca za kukuruz za kombajne, bera\u010de pamuka, balirke i opremu za rasipanje. Standard ISO 487 \/ ASME B29.100.<\/p>\n

Pogledajte poljoprivredne lance<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

\n

\"\"<\/p>\n

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Zatra\u017eite ponudu \u2014 Azijski standardni lan\u010danici s obra\u0111enim provrtom<\/h3>\n

Navedite veli\u010dinu lanca (npr. 60B), broj zubaca, tip (FBN ili FBK), pre\u010dnik otvora u mm. Ner\u0111aju\u0107i \u010delik SUSFBP dostupan za 25B. Odgovor u roku od jednog radnog dana.<\/p>\n

Zatra\u017eite ponudu odmah<\/a>
\nSvi Sprocket proizvodi<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Azijski standardni lan\u010danici Korea Ever-Power s zavr\u0161enim provrtom u skladu su s JIS B1801 - japanskim industrijskim standardom za lan\u010danike valjkastih lanaca, koji je osnova azijskog standarda koji se koristi u Japanu, Ju\u017enoj Koreji, Tajvanu, Kini i jugoisto\u010dnoj Aziji. Dimenzije JIS lanca razlikuju se od ANSI B29.1 i DIN 8187 u promjeru valjka i unutra\u0161njoj \u0161irini, \u0161to zahtijeva specifi\u010dan profil zuba - azijski standardni lanac i lan\u010danici uvijek moraju biti uskla\u0111eni s istim standardom.<\/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

\r\n

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

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

\r\n

JIS B1801<\/p>\r\n

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

\r\n

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
\r\n
\r\n

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
\r\n

\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

\r\n

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

\r\n

\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
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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
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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
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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
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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

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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

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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

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