{"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\/fr\/produit\/finished-bore-sprockets-asian-standard\/","title":{"rendered":"Pignons \u00e0 al\u00e9sage fini conformes aux normes asiatiques"},"content":{"rendered":"
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<\/p>\n

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

Gamme de tailles de cha\u00eene<\/p>\n<\/div>\n

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FBN \/ FBK<\/p>\n

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

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JIS B1801<\/p>\n

Norme asiatique<\/p>\n<\/div>\n

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ISO 9001<\/p>\n

Qualit\u00e9 certifi\u00e9e<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Pignons \u00e0 al\u00e9sage fini conformes aux normes asiatiques \u2013 Pr\u00e9sentation du produit<\/h2>\n
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La gamme d'al\u00e9sages finis est produite en deux types de moyeux\u00a0: FBN (Type B)<\/strong> \u2014 Un moyeu droit avec al\u00e9sage, rainure de clavette et vis de blocage, la rainure de clavette \u00e9tant centr\u00e9e sur l'axe de la dent (et non entre les dents comme dans certaines autres normes). Cette disposition permet de visualiser la clavette par le dessus lorsque le pignon est mont\u00e9 sur l'arbre, facilitant ainsi les contr\u00f4les d'alignement. FBK (Type B+F)<\/strong> \u2014 le m\u00eame moyeu avec une bride suppl\u00e9mentaire, utilis\u00e9 pour les applications n\u00e9cessitant une r\u00e9tention lat\u00e9rale positive ou une fixation \u00e0 un \u00e9paulement d'arbre.<\/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 pignons d'al\u00e9sage asiatiques<\/a>Parcourez le cat\u00e9gorie pignon complet<\/a>.<\/p>\n

 <\/p>\n<\/div>\n

\"Pignons
\n<\/p>\n
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\ud83c\udf0f Asiatique vs ANSI vs Europ\u00e9en \u2014 m\u00eame hauteur de cha\u00eene, cha\u00eene diff\u00e9rente<\/p>\n

Pour un m\u00eame pas (par exemple \u00bd\u2033 \/ 12,7 mm), les trois normes ont des diam\u00e8tres de rouleaux diff\u00e9rents\u00a0:<\/p>\n\n\n\n\n\n\n
Pas \u00bd\u2033<\/th>\nRouleau \u00d8<\/th>\nStandard<\/th>\n<\/tr>\n
40B (asiatique\/JIS)<\/td>\n7,92 mm<\/td>\nJIS B1801<\/td>\n<\/tr>\n
#40 (Am\u00e9ricain)<\/td>\n7,95 mm<\/td>\nANSI B29.1<\/td>\n<\/tr>\n
08B (europ\u00e9en)<\/td>\n8,51 mm<\/td>\nDIN 8187<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u26a0\ufe0f Ne m\u00e9langez pas les normes de cha\u00eene \u2014 le rouleau DIN 08B plus grand ne s'adaptera pas correctement aux profils de dents asiatiques ou ANSI.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Emplacement de la rainure de clavette \u2014 Diff\u00e9rence avec les normes asiatiques<\/h2>\n

Les pignons conformes \u00e0 la norme asiatique poss\u00e8dent une rainure de clavette usin\u00e9e sur l'axe de la dent, align\u00e9e avec le milieu de celle-ci et non entre les dents. Cette convention diff\u00e8re de celle des pignons europ\u00e9ens DIN 8187 et am\u00e9ricains ANSI B29.1, o\u00f9 la rainure de clavette est g\u00e9n\u00e9ralement positionn\u00e9e entre les dents. Cette diff\u00e9rence est importante pour deux raisons\u00a0:<\/p>\n

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\u2714 Confirmation visuelle de l'installation<\/p>\n

Avec la rainure de clavette align\u00e9e sur l'axe de la dent, le technicien peut v\u00e9rifier le bon positionnement du pignon en observant le dessus de celui-ci\u00a0: la dent situ\u00e9e directement au-dessus de la clavette doit \u00eatre centr\u00e9e sur le rep\u00e8re de la rainure de clavette sur l'arbre. Ce contr\u00f4le visuel est particuli\u00e8rement utile lors du montage de grands pignons, o\u00f9 l'\u00e9valuation de leur position est difficile.<\/p>\n<\/div>\n

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\u26a0\ufe0f Ne pas utiliser de pignon europ\u00e9en\/ANSI<\/p>\n

Un pignon europ\u00e9en ou ANSI ne peut pas remplacer un pignon de norme asiatique sur une cha\u00eene asiatique, m\u00eame si le pas et l'al\u00e9sage sont identiques. Le profil des dents (rayon de courbure, largeur et angle) diff\u00e8re selon les normes. L'utilisation d'une cha\u00eene et d'un pignon incompatibles entra\u00eene un mauvais engagement des rouleaux, une usure acc\u00e9l\u00e9r\u00e9e et une d\u00e9faillance pr\u00e9matur\u00e9e du pignon quelques semaines seulement apr\u00e8s l'installation.<\/p>\n<\/div>\n

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\ud83d\udcd0 Norme de rainure de clavette JIS B1301<\/p>\n

Les dimensions des rainures de clavette sont conformes \u00e0 la norme JIS B1301 (r\u00e9vis\u00e9e en 1976), la norme japonaise relative aux clavettes et rainures de clavette parall\u00e8les pour les al\u00e9sages m\u00e9triques. Cette norme est dimensionnellement proche de la norme DIN 6885, mais utilise des proportions de profondeur l\u00e9g\u00e8rement diff\u00e9rentes pour les petits al\u00e9sages (inf\u00e9rieures \u00e0 22 mm). Utilisez toujours une clavette conforme \u00e0 la norme JIS B1301 ou DIN 6885 pour les pignons aux normes asiatiques\u00a0; n\u2019utilisez pas de clavettes en pouces ASME B17.1, dont les rapports largeur\/profondeur sont diff\u00e9rents.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

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Cl\u00e9:<\/strong> Z = nombre de dents | De = diam\u00e8tre de la pointe (mm) | Dp = diam\u00e8tre primitif (mm) | BD = diam\u00e8tres d'al\u00e9sage (mm) | BL = longueur d'al\u00e9sage (mm) | a = largeur de la rainure de clavette (mm) | FBN = moyeu de type B\u00a0; FBK = moyeu de type B avec bride\u00a0; SUSFBP = acier inoxydable SUS304Sp\u00e9cifications des pignons \u00e0 al\u00e9sage fini \u2014 35B \u00e0 100B<\/span><\/p>\n<\/div>\n

 <\/p>\n

35B | Pas 9,525 mm | \u00d8 du rouleau 5,08 mm | Largeur int\u00e9rieure 4,78 mm | Tremp\u00e9 C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nOptions BD (mm)<\/th>\nBL (mm)<\/th>\nune rainure de clavette (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n32<\/td>\n27.85<\/td>\n*21,5 (pilote)<\/td>\n20<\/td>\n6<\/td>\n<\/tr>\n
11<\/td>\n38<\/td>\n33.81<\/td>\n*27 (pilote)<\/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 | Pas 12,70 mm | \u00d8 du rouleau 7,92 mm | Largeur int\u00e9rieure 7,85 mm | Tremp\u00e9 C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nOptions BD (mm)<\/th>\nBL (mm)<\/th>\nune rainure de clavette (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n42<\/td>\n37.13<\/td>\n*28 (pilote)<\/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 | Pas 19,05 mm | \u00d8 du rouleau 11,91 mm | Largeur int\u00e9rieure 12,07 mm | Tremp\u00e9 C45<\/h3>\n
\n\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nOptions BD (mm)<\/th>\nBL (mm)<\/th>\nune rainure de clavette (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 | Pas 25,40 mm | \u00d8 du rouleau 15,88 mm | Largeur int\u00e9rieure 15,88 mm | Tremp\u00e9 C45<\/h3>\n
\n\n\n\n\n\n\n\n\n
Z<\/th>\nDe (mm)<\/th>\nDp (mm)<\/th>\nOptions BD (mm)<\/th>\nBL (mm)<\/th>\nune rainure de clavette (mm)<\/th>\n<\/tr>\n<\/thead>\n
9<\/td>\n84<\/td>\n77.52<\/td>\n44 (pilote)<\/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

* = al\u00e9sage pilote (sans rainure de clavette). Gamme compl\u00e8te d'al\u00e9sages et variantes en acier inoxydable SUSFBP25B disponibles\u00a0\u2014 nous contacter. 50B, 100B et 120B \u00e9galement disponibles. Veuillez pr\u00e9ciser la taille de la cha\u00eene, le nombre de dents, le type (FBN ou FBK) et le diam\u00e8tre d'al\u00e9sage (en mm) lors de votre commande.<\/p>\n

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Caract\u00e9ristiques techniques<\/h2>\n

\"Pignons<\/p>\n

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Profil de dent JIS B1801<\/h3>\n

Le profil de la dent est conforme \u00e0 la norme JIS B1801, requise pour un engagement correct avec une cha\u00eene \u00e0 rouleaux standard asiatique. Le rayon de courbure de la gorge et la largeur de la dent diff\u00e8rent des normes DIN 8187 et ANSI B29.1, car le diam\u00e8tre des rouleaux standard asiatiques est l\u00e9g\u00e8rement diff\u00e9rent. L'utilisation d'une cha\u00eene asiatique sur des pignons europ\u00e9ens ou am\u00e9ricains (ou inversement) entra\u00eene un mauvais positionnement des rouleaux et une usure pr\u00e9matur\u00e9e, m\u00eame lorsque le pas est identique. \u00c0 associer avec Cha\u00eene \u00e0 rouleaux conforme \u00e0 la norme asiatique JIS B1801<\/a>.<\/p>\n<\/div>\n

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C45 avec dents tremp\u00e9es \u2014 35B et plus<\/h3>\n

Tous les pignons FBN et FBK, de 35B \u00e0 120B, sont en acier au carbone C45 avec des flancs de dents tremp\u00e9s par induction \u00e0 52\u201358 HRC. L'al\u00e9sage est usin\u00e9 avant le traitement thermique et ses dimensions sont v\u00e9rifi\u00e9es apr\u00e8s trempe. Les pignons 25B, plus l\u00e9gers, sont en acier C45 standard sans trempe des dents et conviennent aux faibles charges des applications d'entra\u00eenement 25B. Les variantes en acier inoxydable SUS304 (pr\u00e9fixe SUSFBP) sont uniquement disponibles en al\u00e9sage lisse et ne sont pas tremp\u00e9es dans la masse.<\/p>\n<\/div>\n

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Bride de type FBK \u2014 Retenue lat\u00e9rale<\/h3>\n

Le type FBK ajoute une bride au moyeu, offrant une surface d'appui contre l'\u00e9paulement ou le collier de l'arbre. Ceci est n\u00e9cessaire lorsque le pignon doit \u00eatre maintenu axialement sur l'arbre par sa propre g\u00e9om\u00e9trie plut\u00f4t que par la seule vis de blocage. Le FBK est le type standard pour les transmissions par cha\u00eene des machines agricoles et de manutention japonaises, o\u00f9 la position du pignon est d\u00e9termin\u00e9e par un \u00e9paulement de l'arbre et non par une simple vis de blocage.<\/p>\n<\/div>\n

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Korea Ever-Power pour les variateurs OEM asiatiques<\/h3>\n

Les machines industrielles cor\u00e9ennes utilisent des cha\u00eenes conformes aux normes JIS pour toutes leurs transmissions. Les pignons \u00e0 al\u00e9sage fini Korea Ever-Power, conformes \u00e0 la norme asiatique, sont parfaitement adapt\u00e9s aux transmissions des \u00e9quipements de fabrication cor\u00e9enne, tous secteurs confondus\u00a0: engins de chantier, mat\u00e9riel agricole, convoyeurs industriels et machines textiles. Ils pr\u00e9sentent la m\u00eame g\u00e9om\u00e9trie de moyeu, les m\u00eames dimensions d'al\u00e9sage et de rainure de clavette que les sp\u00e9cifications d'origine du constructeur cor\u00e9en.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

<\/p>\n

Cha\u00eene assortie et produits connexes<\/h2>\n
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\"Cha\u00eene<\/p>\n

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Cha\u00eene \u00e0 rouleaux conforme aux normes asiatiques<\/p>\n

Utilisez une cha\u00eene \u00e0 rouleaux conforme \u00e0 la norme asiatique JIS B1801 (35B, 40B, 60B, 80B, etc.) avec votre pignon FBN\/FBK. Disponible en versions standard, s\u00e9rie H, autolubrifiante et en acier inoxydable SUS304. N'utilisez jamais de cha\u00eene europ\u00e9enne DIN 8187 ou ANSI B29.1 avec des pignons asiatiques.<\/p>\n

Voir les cha\u00eenes de traction \u2192<\/a><\/p>\n<\/div>\n<\/div>\n

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\"Cha\u00eenes<\/p>\n

Cha\u00eenes de feuilles<\/a><\/h3>\n

Cha\u00eenes \u00e0 maillons \u00e0 lames s\u00e9ries BL et LH pour m\u00e2ts de chariots \u00e9l\u00e9vateurs, motorisations de portes industrielles et m\u00e9canismes de levage. R\u00e9sistance \u00e0 la traction de 11 kN \u00e0 plus de 1\u00a0600 kN.<\/p>\n

Voir les cha\u00eenes de feuilles<\/a><\/p>\n<\/div>\n

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\"Cha\u00eenes<\/p>\n

Cha\u00eenes d'ing\u00e9nierie<\/a><\/h3>\n

Cha\u00eenes en acier soud\u00e9, en fonte et forg\u00e9es pour le transport industriel intensif dans les aci\u00e9ries, les cimenteries, les mines et les usines de traitement chimique.<\/p>\n

Afficher les cha\u00eenes d'ing\u00e9nierie<\/a><\/p>\n<\/div>\n

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\"Cha\u00eene<\/p>\n

Cha\u00eenes en acier inoxydable<\/a><\/h3>\n

Cha\u00eenes \u00e0 rouleaux en acier inoxydable SUS304 et SUS316L pour les environnements agroalimentaires, pharmaceutiques et chimiques. Adapt\u00e9es aux lavages intensifs, aux hautes temp\u00e9ratures et aux milieux corrosifs.<\/p>\n

Voir les cha\u00eenes SS<\/a><\/p>\n<\/div>\n

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\"cha\u00eene<\/p>\n

Cha\u00eenes agricoles<\/a><\/h3>\n

Cha\u00eenes CA, CC et \u00e0 ma\u00efs pour moissonneuses-batteuses, cueilleuses de coton, presses \u00e0 balles et \u00e9pandeurs. Norme ISO 487 \/ ASME B29.100.<\/p>\n

Voir les cha\u00eenes agricoles<\/a><\/p>\n<\/div>\n<\/div>\n

<\/p>\n

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\"\"<\/p>\n

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Demande de devis \u2014 Pignons \u00e0 al\u00e9sage fini conformes aux normes asiatiques<\/h3>\n

Veuillez pr\u00e9ciser la taille de la cha\u00eene (ex.\u00a0: 60B), le nombre de dents, le type (FBN ou FBK) et le diam\u00e8tre d'al\u00e9sage en mm. Cha\u00eene en acier inoxydable SUSFBP disponible pour 25B. R\u00e9ponse sous 24\u00a0h (jours ouvr\u00e9s).<\/p>\n

Obtenez un devis d\u00e8s maintenant<\/a>
\nTous les produits Sprocket<\/a><\/div>\n<\/div>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"

Les pignons \u00e0 al\u00e9sage fini Korea Ever-Power, conformes \u00e0 la norme asiatique, r\u00e9pondent \u00e0 la norme JIS B1801, la norme industrielle japonaise pour les pignons de cha\u00eenes \u00e0 rouleaux. Cette norme sert de base \u00e0 la norme asiatique utilis\u00e9e au Japon, en Cor\u00e9e du Sud, \u00e0 Ta\u00efwan, en Chine et en Asie du Sud-Est. Les dimensions des cha\u00eenes JIS diff\u00e8rent de celles des normes ANSI B29.1 et DIN 8187 en termes de diam\u00e8tre des rouleaux et de largeur int\u00e9rieure, ce qui exige un profil de dent sp\u00e9cifique. Il est donc imp\u00e9ratif que les cha\u00eenes et les pignons conformes \u00e0 la norme asiatique soient toujours utilis\u00e9s.<\/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

\r\n

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