{"id":3328,"date":"2026-05-14T03:47:32","date_gmt":"2026-05-14T03:47:32","guid":{"rendered":"https:\/\/sprocket-chain.net\/?p=3328"},"modified":"2026-05-14T03:49:39","modified_gmt":"2026-05-14T03:49:39","slug":"double-pitch-vs-standard-roller-chain","status":"publish","type":"post","link":"https:\/\/sprocket-chain.net\/bs\/double-pitch-vs-standard-roller-chain\/","title":{"rendered":"Dvostruki valjkasti lanac u odnosu na standardni: Koji koristiti i kada je izbor va\u017ean"},"content":{"rendered":"<div style=\"font-family: 'IBM Plex Sans','Segoe UI',system-ui,sans-serif; color: #1a2332; line-height: 1.78; max-width: 1240px; margin: 0 auto; padding: 0; word-break: break-word; overflow-wrap: break-word; font-size: clamp(14px,1.4vw + 8px,17px);\">\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 HERO \u2014 side-by-side comparison concept \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<div style=\"display: flex; flex-wrap: wrap; min-height: 440px; overflow: hidden;\">\n<p><!-- Dark left panel --><\/p>\n<div style=\"flex: 1; min-width: 280px; background: #111820; display: flex; flex-direction: column; justify-content: flex-end; padding: clamp(32px,5vw,56px) clamp(20px,5vw,52px); box-sizing: border-box; position: relative;\">\n<p><!-- grid overlay --><\/p>\n<div style=\"position: absolute; inset: 0; background-image: linear-gradient(rgba(232,137,10,0.05) 1px,transparent 1px),linear-gradient(90deg,rgba(232,137,10,0.05) 1px,transparent 1px); background-size: 28px 28px; pointer-events: none;\"><\/div>\n<div style=\"position: relative; z-index: 2;\">\n<div style=\"display: inline-block; background: #e8890a; color: #ffffff; padding: 5px 14px; border-radius: 4px; font-size: clamp(10px,1.1vw,12px); font-weight: 800; letter-spacing: 2px; text-transform: uppercase; margin-bottom: 14px;\">Pore\u0111enje proizvoda \u00b7 Vodi\u010d za odabir<\/div>\n<h1 style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(28px,4.5vw,62px); font-weight: 800; color: #ffffff; text-transform: uppercase; line-height: 0.95; margin: 0 0 18px 0; letter-spacing: -0.5px;\">Dvostruki valjkasti lanac u odnosu na standardni: Koji koristiti i kada je izbor va\u017ean<\/h1>\n<p style=\"color: rgba(255,255,255,0.78); font-size: clamp(13px,1.6vw,17px); margin: 0 0 24px 0; line-height: 1.68; max-width: 520px;\">Lanac s dvostrukim korakom ko\u0161ta manje po metru, te\u017ei manje i ispravno se pokre\u0107e na istim lan\u010danicima kao i njegov ekvivalent sa standardnim korakom. Kompromis - ograni\u010denje brzine - je odlu\u010duju\u0107i za neke primjene, a nebitan za druge.<\/p>\n<p><a style=\"display: inline-block; background: #e8890a; color: #ffffff; padding: 13px 28px; border-radius: 6px; font-weight: bold; text-decoration: none; font-size: clamp(13px,1.3vw,15px);\" href=\"#contact\">Potvrdite odgovaraju\u0107i tip lanca za va\u0161u primjenu<\/a><\/p>\n<\/div>\n<\/div>\n<p><!-- Image right --><\/p>\n<div style=\"flex: 1; min-width: 260px; min-height: 280px; background-image: url('https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/Double-Pitch-Transmission-Chain.webp'); background-size: cover; background-position: center;\"><\/div>\n<\/div>\n<div style=\"padding: clamp(36px,5vw,60px) clamp(20px,5vw,64px);\">\n<p><!-- OPENING --><\/p>\n<p style=\"margin: 0 0 22px 0;\">Transporter za akumulaciju dijelova u fabrici za monta\u017eu elektronike u Suwonu koristio je ANSI #60 jednostruki lanac na nadzemnom sistemu tra\u010dnica, pomi\u010du\u0107i sklopove \u0161tampanih plo\u010da mase 0,8 kg brzinom od 8 metara u minuti. Lanac je radio pouzdano, ali je sistem te\u017eio vi\u0161e nego \u0161to je projektant predvidio - lanac #60 je specificirao te\u017einu od 0,84 kg\/m na ukupnom krugu od 28 metara, doprinose\u0107i optere\u0107enju nadzemnog sistema sa 23,5 kg. Kada je sistem pro\u0161iren za novu liniju proizvoda 2023. godine, in\u017eenjer je ponovo procijenio specifikaciju lanca. Brzina transportera bila je 8 m\/min, optere\u0107enje po nosa\u010du bilo je 0,8 kg, a najve\u0107i raspon bio je 2,4 metra. Nijedna od ovih vrijednosti nije se pribli\u017eila granicama standardnog lanca #60. Specificirao je lanac #2060 sa dvostrukim korakom - isti promjer valjka kao #60, ista kompatibilnost sa lan\u010danicima, 0,45 kg\/m. Pro\u0161ireni sistem je u\u0161tedio 37 kg te\u017eine lanca, smanjio potrebu za pogonskim motorom sa 0,75 kW na 0,55 kW i smanjio cijenu lanca za 38% bez ikakvog smanjenja nosivosti ili pouzdanosti.<\/p>\n<p style=\"margin: 0 0 22px 0;\">Dvostruki lanac je jedan od najmanje specificiranih proizvoda u katalogu lanaca za primjene za koje je najprikladniji - spori, lagani pogoni transportera gdje se standardni lanac koristi po defaultu jednostavno zato \u0161to je specifikacija bolje upoznata s njim. Razumijevanje ta\u010dnog \u0161ta je dvostruki lanac, kako se razlikuje od standardnog koraka i gdje ga ograni\u010denje brzine \u010dini neprikladnim, omogu\u0107ava ispravnu specifikaciju lak\u0161e i jeftinije opcije tamo gdje zaista funkcioni\u0161e.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-3146\" src=\"https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/sprocket-and-chain-1.webp\" alt=\"lan\u010danik i lanac 1\" width=\"1448\" height=\"1086\" title=\"\" srcset=\"https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/sprocket-and-chain-1.webp 1448w, https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/sprocket-and-chain-1-1280x960.webp 1280w, https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/sprocket-and-chain-1-980x735.webp 980w, https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/sprocket-and-chain-1-480x360.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) and (max-width: 980px) 980px, (min-width: 981px) and (max-width: 1280px) 1280px, (min-width: 1281px) 1448px, 100vw\" \/><br \/>\n<!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 2 \u2014 What double-pitch chain is \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">\u0160ta je lanac s dvostrukim korakom - i po \u010demu se ne razlikuje<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 0; margin: 0 0 28px 0; border: 1px solid #dde3ea; border-radius: 12px; overflow: hidden;\">\n<p><!-- What IS different --><\/p>\n<div style=\"flex: 1; min-width: 240px; padding: 22px 22px; background: #ffffff; box-sizing: border-box; border-right: 1px solid #dde3ea;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(17px,2vw,22px); font-weight: 800; color: #e8890a; text-transform: uppercase; margin-bottom: 12px; border-bottom: 2px solid #e8890a; padding-bottom: 8px;\">\u0160ta JE druga\u010dije<\/div>\n<ul style=\"margin: 0; padding-left: 16px; font-size: clamp(12px,1.3vw,15px); color: #445566; line-height: 1.9;\">\n<li><strong>Visina linka:<\/strong> Ta\u010dno 2\u00d7 ekvivalentni standardni korak lanca (npr. #2060 = 38,10 mm u odnosu na #60 = 19,05 mm)<\/li>\n<li><strong>Du\u017eina spone plo\u010de:<\/strong> Svaka spojna plo\u010da obuhvata dva standardna koraka<\/li>\n<li><strong>Te\u017eina po metru:<\/strong> Otprilike 40\u201350% manje od standardnog ekvivalenta<\/li>\n<li><strong>Cijena po metru:<\/strong> Otprilike 30\u201340% manje od standardnog ekvivalenta<\/li>\n<li><strong>Broj spojeva po metru:<\/strong> Upola manje \u2014 26 spojeva\/m u odnosu na 52 spoja\/m za #60<\/li>\n<\/ul>\n<\/div>\n<p><!-- What is NOT different --><\/p>\n<div style=\"flex: 1; min-width: 240px; padding: 22px 22px; background: #f8f9fa; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(17px,2vw,22px); font-weight: 800; color: #1a5fa8; text-transform: uppercase; margin-bottom: 12px; border-bottom: 2px solid #1a5fa8; padding-bottom: 8px;\">\u0160ta NIJE druga\u010dije<\/div>\n<ul style=\"margin: 0; padding-left: 16px; font-size: clamp(12px,1.3vw,15px); color: #445566; line-height: 1.9;\">\n<li><strong>Pre\u010dnik valjka:<\/strong> Identi\u010dno standardnom ekvivalentu (valjak #2060 = valjak #60 = 11,91 mm)<\/li>\n<li><strong>Kompatibilnost zup\u010danika:<\/strong> Radi na standardnim ekvivalentnim lan\u010danicima bez modifikacija<\/li>\n<li><strong>\u0160irina unutra\u0161njeg linka:<\/strong> Isto kao i standardni lanac<\/li>\n<li><strong>Pre\u010dnik klina i \u010dahure:<\/strong> Isto kao i standardni ekvivalent<\/li>\n<li><strong>Minimalno nosivo optere\u0107enje:<\/strong> U su\u0161tini isto po jedinici lanca (isti popre\u010dni presjek)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p style=\"margin: 0 0 22px 0;\">Naziv \"dvostruki korak\" se ponekad pogre\u0161no tuma\u010di kao \"dvostruka \u010dvrsto\u0107a\" - to nije ta\u010dno. Prekidno optere\u0107enje dvostrukog koraka lanca po jedinici du\u017eine je otprilike jednako standardnom koraku, a ne udvostru\u010deno. Karike su istog popre\u010dnog presjeka. Udvostru\u010den je samo korak izme\u0111u ta\u010daka zahvata (valjaka), \u0161to prepolovljuje broj zglobova po metru lanca. Budu\u0107i da ima manje zglobova po metru, ima manje metala (i manje te\u017eine) po metru i manje povr\u0161ine za podmazivanje koju treba odr\u017eavati. Strukturni integritet je u su\u0161tini nepromijenjen na datoj ta\u010dki kontakta valjka.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 3 \u2014 Complete comparison table \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Dvostruki naspram standardnog nagiba: Potpuna usporedba dimenzija i performansi<\/h2>\n<div style=\"overflow-x: auto; width: 100%; margin: 0 0 28px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(12px,1.3vw + 7px,14px); min-width: 620px;\">\n<thead>\n<tr>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Nekretnina<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: center; font-weight: bold; white-space: nowrap;\">#60 Standard<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: center; font-weight: bold; white-space: nowrap;\">#2060 Dvostruki nagib<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Prakti\u010dne implikacije<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">To\u010dka glasa<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center;\">19,05 mm<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center; font-weight: bold; color: #e8890a;\">38,10 mm<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">Dvostruki korak zna\u010di dvostruku du\u017einu karike<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">Pre\u010dnik valjka<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center;\">11,91 mm<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center; font-weight: bold; color: #27ae60;\">11,91 mm \u2713<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">Identi\u010dno \u2014 radi na istim lan\u010danicima #60<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">\u0160irina unutra\u0161njeg linka<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center;\">12,57 mm<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center; font-weight: bold; color: #27ae60;\">12,57 mm \u2713<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">Potrebna je ista \u0161irina prednje strane lan\u010danika<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">Te\u017eina po metru<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center;\">0,84 kg\/m\u00b2<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center; font-weight: bold; color: #27ae60;\">0,45 kg\/m\u00b2<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600; color: #27ae60;\">46% upalja\u010d \u2014 smanjuje potrebnu snagu pogona<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">Minimalno prekidno optere\u0107enje<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center;\">31,8 kN<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center;\">31,1 kN<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">U su\u0161tini identi\u010dan strukturni kapacitet<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">Spojevi po metru<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center;\">52.5<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center; font-weight: bold; color: #27ae60;\">26.2<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600; color: #27ae60;\">Upola manje ta\u010daka habanja po metru<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">Maksimalna prakti\u010dna brzina<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center;\">~10 m\/s (600 m\/min)<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; text-align: center; font-weight: bold; color: #c0392b;\">~1,0 m\/s (60 m\/min)<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">Nedostatak brzine 10:1 \u2014 klju\u010dni kompromis<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">Poligonalni efekat kod 19T drajvera<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center;\">\u00b11,7%<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; text-align: center; font-weight: bold; color: #c0392b;\">\u00b11,7% ali pri ni\u017eoj brzini lanca<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">Ista ugaona varijacija, ali ni\u017ee apsolutno valovanje brzine pri maloj brzini<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; background: #f8f9fa; font-weight: 600;\">Relativna cijena po metru<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa; text-align: center;\">100%<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa; text-align: center; font-weight: bold; color: #27ae60;\">~62%<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa; font-weight: 600; color: #27ae60;\">38% u\u0161teda tro\u0161kova po metru lanca<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<div style=\"background: #fff8ec; border-left: 4px solid #e8890a; padding: 18px 22px; border-radius: 0 10px 10px 0; margin: 0 0 28px 0;\"><strong style=\"display: block; margin-bottom: 6px;\">Kontraintuitivno: lanac s dvostrukim korakom nema polovinu nosivosti standardnog koraka.<\/strong> Budu\u0107i da su pre\u010dnik valjka, pre\u010dnik klina, \u010dahura i popre\u010dni presjek spone identi\u010dni standardnom ekvivalentu koraka lanca, minimalna prekidna sila po lancu je u su\u0161tini ista. Ono \u0161to nedostaje lancu sa dvostrukim korakom je... <em>broj valjaka po metru<\/em> \u2014 \u0161to je va\u017eno za brzinu (vi\u0161e ta\u010daka zahvata u sekundi = ve\u0107a buka i habanje pri brzini), ali ne uti\u010de na nosivost po pojedina\u010dnom zahvatu valjka. Optere\u0107enje od 10 kN na valjku #2060 predstavlja isto naprezanje kao i optere\u0107enje od 10 kN na valjku #60. Razlika je u tome \u0161to pri brzini od 600 m\/min, lanac #2060 zahvata zub lan\u010danika 26 puta po metru hoda lanca u odnosu na 52 puta za #60 \u2014 dvostruka frekvencija zahvata pri velikoj brzini stvara buku, vibracije i habanje koji ograni\u010davaju dvostruki korak na spore primjene.<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 4 \u2014 Speed limit explained technically \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Za\u0161to lanac s dvostrukim korakom ima nisko ograni\u010denje brzine \u2014 Fizika iza pravila od 60 m\/min<\/h2>\n<p style=\"margin: 0 0 18px 0;\">Ograni\u010denje brzine za lanac s dvostrukim korakom nije proizvoljna preporuka proizvo\u0111a\u010da - ono proizlazi iz fizike zahvata valjka na lan\u010daniku. Kada lanac zahvati zub lan\u010danika, svaki valjak sti\u017ee na povr\u0161inu zuba s kineti\u010dkom energijom proporcionalnom kvadratu brzine udara. Brzina udara ovisi o relativnoj brzini izme\u0111u ulaznog valjka i povr\u0161ine zuba u trenutku kontakta. Kod standardnog valjkastog lanca, ova brzina udara povezana je s efektom poligona - sinusoidnom varijacijom brzine lanca dok svaka karika zatvara ugao na lan\u010daniku.<\/p>\n<p style=\"margin: 0 0 18px 0;\">Lanac s dvostrukim korakom ima isti valjak kao i standardni korak - ali je karika koja spaja uzastopne valjke dvostruko du\u017ea. To zna\u010di da kada valjak zahvati lan\u010danik, prethodni valjak nije u kontaktu s lan\u010danikom na drugoj strani - ve\u0107 je napustio zub dva koraka unazad. Lanac \"visi\" izme\u0111u dvije kontaktne ta\u010dke razdvojene za 38,10 mm umjesto 19,05 mm. Ovaj dvostruki raspon zna\u010di da je progib lanca nepoduprtog dijela lanca izme\u0111u zahvata \u010detiri puta ve\u0107i pri istoj brzini (progib se skalira s kvadratom raspona pri konstantnoj napetosti). Iznad pribli\u017eno 60 m\/min, ovaj progib proizvodi udarno kretanje na ulaznoj povr\u0161ini zuba - svaki valjak ne sti\u017ee \u010disto, ve\u0107 s bo\u010dnom komponentom brzine koja pove\u0107ava energiju udara i uzrokuje asimetri\u010dno tro\u0161enje na stranama zuba i bo\u010dno tro\u0161enje plo\u010da na lancu.<\/p>\n<p><img decoding=\"async\" style=\"max-width: 100%; height: auto; border-radius: 10px; display: block; margin: 0 0 22px 0;\" src=\"https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/roller-chain-components-and-pitch-definition.webp\" alt=\"\" title=\"\"><\/p>\n<p style=\"margin: 0 0 22px 0;\">Prakti\u010dna smjernica od 60 m\/min (1,0 m\/s) za lanac s dvostrukim korakom je brzina pri kojoj ovaj efekat progiba lan\u010danice na lancu #2060 postaje zna\u010dajan za standardne industrijske primjene. Ograni\u010denje nije apsolutno - pri manjim optere\u0107enjima s dobro zategnutim lancem i \u010destim ta\u010dkama oslonca, lanac s dvostrukim korakom mo\u017ee raditi brzinom do 80 m\/min. Ali iznad pribli\u017eno 100 m\/min na bilo kojem lancu s dvostrukim korakom u ekvivalentnom ili ve\u0107em koraku #60, buka i habanje se brzo pove\u0107avaju, a vijek trajanja pada ispod onoga \u0161to bi pru\u017eio standardni korak.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 5 \u2014 Standard vs extended-pin double-pitch \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Standardni lanac u odnosu na lanac s dvostrukim korakom i produ\u017eenim klinovima: Varijanta transportera<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 20px; margin: 0 0 28px 0;\">\n<div style=\"flex: 1; min-width: 220px; background: #f4f7fb; border: 1px solid #dde3ea; border-radius: 10px; padding: 20px 22px; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(16px,1.8vw,20px); font-weight: 800; color: #1a2332; text-transform: uppercase; margin-bottom: 10px;\">Standardni dvoslojni krevet<\/div>\n<p style=\"margin: 0 0 10px 0; font-size: clamp(12px,1.3vw,14px); color: #445566; line-height: 1.72;\">Identi\u010dan standardnom valjkastom lancu u bo\u010dnom profilu. Nema bo\u010dnih produ\u017eetaka na klinovima. Radi na standardnim lan\u010danicima #60. Koristi se kada lanac jednostavno treba prenositi bez no\u0161enja dodataka.<\/p>\n<div style=\"background: #ffffff; border-radius: 6px; padding: 10px 12px; font-size: clamp(11px,1.2vw,13px); color: #1a2332; border: 1px solid #dde3ea;\"><strong>Najbolje za:<\/strong> Nadzemni transporteri s kolicima, petlje za prijenos dijelova, lagani nadzemni transporteri gdje su minimalna te\u017eina i tro\u0161kovi prioriteti.<\/div>\n<\/div>\n<div style=\"flex: 1; min-width: 220px; background: #fff4e5; border: 1px solid #f5d5a8; border-radius: 10px; padding: 20px 22px; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(16px,1.8vw,20px); font-weight: 800; color: #e8890a; text-transform: uppercase; margin-bottom: 10px;\">Produ\u017eeni klinovi s dvostrukim korakom<\/div>\n<p style=\"margin: 0 0 10px 0; font-size: clamp(12px,1.3vw,14px); color: #445566; line-height: 1.72;\">Spojni klinovi se prote\u017eu izvan vanjskih kari\u010dnih plo\u010da s obje strane. Ovi produ\u017eeni krajevi klinova prihvataju popre\u010dnu \u0161ipku, nosa\u010d ili dodatak koji povezuje dva paralelna lanca. Koristi se u sistemima transportera s ravnim remenom i popre\u010dnim trakama.<\/p>\n<div style=\"background: #ffffff; border-radius: 6px; padding: 10px 12px; font-size: clamp(11px,1.2vw,13px); color: #1a2332; border: 1px solid #f5d5a8;\"><strong>Najbolje za:<\/strong> Lanci za su\u0161are, transporteri za pranje dijelova, sistemi s ravnim popre\u010dnim \u0161ipkama, okviri za su\u0161enje tekstila.<\/div>\n<\/div>\n<div style=\"flex: 1; min-width: 220px; background: #e8f0fb; border: 1px solid #b8d0f0; border-radius: 10px; padding: 20px 22px; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(16px,1.8vw,20px); font-weight: 800; color: #1a5fa8; text-transform: uppercase; margin-bottom: 10px;\">K-priklju\u010dak dvostrukog nagiba<\/div>\n<p style=\"margin: 0 0 10px 0; font-size: clamp(12px,1.3vw,14px); color: #445566; line-height: 1.72;\">Produ\u017eene plo\u010de karika na naizmjeni\u010dnim karikama (K1 ili K2 uzorak pri\u010dvr\u0161\u0107ivanja). Omogu\u0107ava fiksne ta\u010dke pri\u010dvr\u0161\u0107ivanja u pravilnim intervalima za monta\u017eu nosa\u010da, letvi ili dr\u017ea\u010da proizvoda direktno na lanac.<\/p>\n<div style=\"background: #ffffff; border-radius: 6px; padding: 10px 12px; font-size: clamp(11px,1.2vw,13px); color: #1a2332; border: 1px solid #b8d0f0;\"><strong>Najbolje za:<\/strong> Elevatori za rukovanje \u017eitaricama i sjemenkama, transportni sistemi za \u017eivinu, laki poljoprivredni transporteri sa priklju\u010dcima za ka\u0161ike.<\/div>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 6 \u2014 Full double-pitch series reference \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Referenca serije lanaca s dvostrukim korakom: Sve standardne veli\u010dine i njihovi ekvivalenti<\/h2>\n<div style=\"overflow-x: auto; width: 100%; margin: 0 0 28px 0;\">\n<table style=\"width: 100%; border-collapse: collapse; font-size: clamp(12px,1.3vw + 7px,14px); min-width: 680px;\">\n<thead>\n<tr>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Dvostruki nagib br.<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Ekvivalent standardnog nagiba<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Razmak (mm)<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Pre\u010dnik valjka (mm)<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Unutra\u0161nja \u0161irina (mm)<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Minimalna nosivost (kN)<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Te\u017eina (kg\/m\u00b2)<\/th>\n<th style=\"background: #1a2332; color: #ffffff; padding: 11px 13px; text-align: left; font-weight: bold; white-space: nowrap;\">Maks. brzina (m\/min)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">#2040<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">#40<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">25.40<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">7.92<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">7.85<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">13.6<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">0.21<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">80<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">#2050<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">#50<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">31.75<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">10.16<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">9.53<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">21.5<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">0.35<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">70<\/td>\n<\/tr>\n<tr style=\"background: #fff4e5;\">\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; font-weight: bold; color: #e8890a;\">#2060<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8;\">#60<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8;\">38.10<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; font-weight: bold;\">11.91<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8;\">12.57<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8;\">31.1<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; font-weight: bold; color: #27ae60;\">0.45<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; font-weight: bold;\">60<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: 600;\">#2080<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">#80<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">50.80<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">15.88<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">15.75<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">55.0<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa; font-weight: bold; color: #27ae60;\">0.89<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #f8f9fa;\">50<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: 600;\">#2100<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">#100<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">63.50<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">19.05<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">18.90<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">86.0<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff; font-weight: bold; color: #27ae60;\">1.40<\/td>\n<td style=\"padding: 9px 13px; border-bottom: 1px solid #e8e8e8; background: #ffffff;\">40<\/td>\n<\/tr>\n<tr>\n<td style=\"padding: 9px 13px; background: #f8f9fa; font-weight: 600;\">#2120<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">#120<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">76.20<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">22.23<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">25.22<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">124.0<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa; font-weight: bold; color: #27ae60;\">2.00<\/td>\n<td style=\"padding: 9px 13px; background: #f8f9fa;\">35<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<p style=\"font-size: clamp(11px,1.2vw,13px); color: #7a8fa8; margin: 0 0 28px 0;\">\u2020 Istaknut red #2060 \u2014 naj\u010de\u0161\u0107e specificirani lanac s dvostrukim korakom u korejskoj op\u0107oj industriji. Imajte na umu da se maksimalna brzina smanjuje s pove\u0107anjem koraka zbog du\u017eeg nepoduprtog raspona izme\u0111u valjaka na svakom koraku.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 7 \u2014 When to use each \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Vodi\u010d za odlu\u010divanje: Standardni nagib ili dvostruki nagib?<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 0 0 28px 0;\">\n<div style=\"flex: 1; min-width: 240px; background: #eafbf1; border: 1px solid #a8e0c0; border-radius: 10px; padding: 20px 22px; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(16px,1.8vw,20px); font-weight: 800; color: #27ae60; text-transform: uppercase; margin-bottom: 10px;\">Navedite dvostruki nagib kada:<\/div>\n<ul style=\"margin: 0; padding-left: 16px; font-size: clamp(12px,1.3vw,14px); color: #445566; line-height: 1.85;\">\n<li>Brzina lanca \u2264 60 m\/min potvr\u0111ena<\/li>\n<li>Optere\u0107enje po kariki je lagano (transporter nosi te\u017einu, a ne prijenos snage)<\/li>\n<li>Te\u017eina lanca je sistemsko ograni\u010denje (nadzemno, povi\u0161eno, osjetljivo na inerciju)<\/li>\n<li>Smanjenje tro\u0161kova je primarni cilj bez kompromisa u pogledu nosivosti<\/li>\n<li>Pristup podmazivanju je ograni\u010den (manje spojeva po metru = manje ta\u010daka podmazivanja)<\/li>\n<li>Primjena je samo horizontalni ili blago nagnuti transporter<\/li>\n<\/ul>\n<\/div>\n<div style=\"flex: 1; min-width: 240px; background: #fff4f4; border: 1px solid #f0b0b0; border-radius: 10px; padding: 20px 22px; box-sizing: border-box;\">\n<div style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(16px,1.8vw,20px); font-weight: 800; color: #c0392b; text-transform: uppercase; margin-bottom: 10px;\">NE specificirajte dvostruki nagib kada:<\/div>\n<ul style=\"margin: 0; padding-left: 16px; font-size: clamp(12px,1.3vw,14px); color: #445566; line-height: 1.85;\">\n<li>Brzina lanca prelazi 60 m\/min (standardni korak je obavezan)<\/li>\n<li>Pogon je prijenos snage s velikim obrtnim momentom (ne transporter)<\/li>\n<li>Primjena uklju\u010duje \u010desta udarna optere\u0107enja ili preokrete<\/li>\n<li>Potrebna je precizna ujedna\u010denost brzine (efekat poligona je ve\u0107i po broju okretaja u minuti)<\/li>\n<li>Radna temperatura prelazi 120\u00b0C (du\u017ei rasponi se vi\u0161e ugibaju zbog termi\u010dkog \u0161irenja)<\/li>\n<li>Vertikalne promjene nadmorske visine ve\u0107e od 3 metra (te\u017eina lanca stvara naponske skokove pri ve\u0107im razmacima)<\/li>\n<\/ul>\n<\/div>\n<\/div>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 8 \u2014 Applications \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">Industrijske primjene gdje je lanac s dvostrukim korakom standardna specifikacija<\/h2>\n<p style=\"margin: 0 0 18px 0;\"><strong>Monta\u017ea elektronike i poluprovodnika.<\/strong> Nadzemni transporteri s kolicima i sistemi indeksnih lanaca u operacijama monta\u017ee PCB-a i pakiranja poluprovodnika su glavna primjena za dvostruke lance #2040 i #2060. Ovi sistemi zahtijevaju malu te\u017einu lanca kako bi se minimiziralo optere\u0107enje motora od inercije tokom \u010destih ciklusa zaustavljanja i pokretanja, a rade vrlo malim brzinama - obi\u010dno 2-15 m\/min - unutar ograni\u010denja brzine dvostrukog koraka. U\u0161teda tro\u0161kova u tipi\u010dnom pogonu elektronike s vi\u0161e od 50 pozicija lan\u010danih transportera je zna\u010dajna. <a style=\"color: #1a5fa8; font-weight: 600; text-decoration: none;\" href=\"https:\/\/sprocket-chain.net\/bs\/kategorija-proizvoda\/chain\/\">Dvostruki valjkasti lanac #2040 i #2060<\/a> Dostupno je i u standardnoj i u konfiguraciji s produ\u017eenim pinovima na na\u0161em korejskom skladi\u0161tu.<\/p>\n<p style=\"margin: 0 0 18px 0;\"><strong>Elevatori za rukovanje \u017eitaricama i sjemenkama.<\/strong> Noge elevatora u \u017eitnim zadrugama i poljoprivrednim skladi\u0161tima koriste lance dvostrukog koraka #2060 i #2080 s pri\u010dvrsnim plo\u010dama za ka\u0161ike K1 ili K2. Razmak ka\u0161ika odre\u0111en je korakom lanca - lanac dvostrukog koraka omogu\u0107ava ve\u0107i razmak ka\u0161ika s manje spojeva lanca po ka\u0161ici, smanjuju\u0107i i tro\u0161kove lanca i odr\u017eavanje spojeva po instaliranoj ka\u0161ici. Brzine nogu elevatora u korejskim zadrugama za ri\u017eu obi\u010dno su 30-45 m\/min, \u0161to je udobno unutar ograni\u010denja brzine #2060. Za terminale za \u017eitarice ve\u0107eg protoka koji rade brzinama elevatora od 60-80 m\/min, standardni lanac #60 ili #80 je ispravna specifikacija.<\/p>\n<p style=\"margin: 0 0 18px 0;\"><strong>Linije za pranje i su\u0161enje automobilskih dijelova.<\/strong> Transporteri za pranje dijelova koriste lanac s produ\u017eenim klinovima i dvostrukim korakom s popre\u010dnim \u0161ipkama kako bi se stvorila ravna povr\u0161ina transportera za no\u0161enje korpi kroz faze pranja i ispiranja. Mala brzina transportera (5\u201320 m\/min) i relativno mala optere\u0107enja korpi (2\u201315 kg po poziciji korpe) dobro odgovaraju lancu s dvostrukim korakom. Otvorena struktura lanca s produ\u017eenim klinovima i dvostrukim korakom tako\u0111er omogu\u0107ava da teku\u0107ina za pranje slobodno otje\u010de s povr\u0161ine lanca, smanjuju\u0107i rizik od korozije u usporedbi s gu\u0161\u0107om geometrijom lanca standardnog koraka. <a style=\"color: #1a5fa8; font-weight: 600; text-decoration: none;\" href=\"https:\/\/sprocket-chain.net\/bs\/kategorija-proizvoda\/sprocket\/\">Dvostruki lan\u010danici za lanac s produ\u017eenim klinovima<\/a> Dostupni su u standardnim konfiguracijama provrta i konusnog zaklju\u010davanja.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-3216 aligncenter\" src=\"https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/Double-row-sprockets.webp\" alt=\"Dvoredni lan\u010danici\" width=\"500\" height=\"600\" title=\"\" srcset=\"https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/Double-row-sprockets.webp 500w, https:\/\/sprocket-chain.net\/wp-content\/uploads\/2026\/05\/Double-row-sprockets-480x576.webp 480w\" sizes=\"auto, (min-width: 0px) and (max-width: 480px) 480px, (min-width: 481px) 500px, 100vw\" \/><\/p>\n<p style=\"margin: 0 0 22px 0;\"><strong>Transporteri za preradu peradi i ribe.<\/strong> Nadzemni tra\u010dni transporteri u pogonima za preradu peradi koriste lanac s produ\u017eenim klinovima ili K-priklju\u010dcima s dvostrukim korakom za no\u0161enje trupova kroz faze obrade. Lanac mora biti dovoljno lagan da se njime mogu rukovati preko nadzemnih ta\u010daka monta\u017ee, mora se mo\u0107i \u010distiti i mora se okretati dovoljno sporo za vremenski ograni\u010dene operacije obrade. Standardna specifikacija lanca ovdje je od nehr\u0111aju\u0107eg \u010delika #2060 (304 ili 316L, ovisno o hemiji ispiranja) s K1 priklju\u010dcima i otvorenim produ\u017eenim klinovima za monta\u017eu nosa\u010da.<\/p>\n<p><!-- \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 SECTION 9 \u2014 FAQ \u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550\u2550 --><\/p>\n<h2 style=\"font-size: clamp(21px,2.8vw,33px); font-weight: bold; color: #1a2332; border-left: 4px solid #e8890a; padding-left: 14px; margin: 52px 0 18px;\">\u010cesto postavljana pitanja<\/h2>\n<details style=\"border: 1px solid #dde3ea; border-radius: 8px; overflow: hidden; margin-bottom: 10px;\">\n<summary style=\"padding: 16px 20px; font-weight: bold; cursor: pointer; background: #f4f6f8; font-size: clamp(13px,1.4vw + 8px,16px); list-style: none; color: #1a2332;\">Mo\u017ee li se lanac s dvostrukim korakom pokretati na lan\u010danicima standardnog koraka? A \u0161ta je s obrnutim postupkom?<\/summary>\n<div style=\"padding: 16px 20px; font-size: clamp(13px,1.3vw + 8px,15px); color: #445566; line-height: 1.78; border-top: 1px solid #dde3ea;\">Da - ovo je jedna od glavnih karakteristika dizajna lanca s dvostrukim korakom. Lanac #2060 koristi isti valjak od 11,91 mm kao i standardni #60, tako da valjci ispravno sjedaju u korijene zuba standardnog lan\u010danika #60. Na standardnom lan\u010daniku #60, svaki drugi zub zahva\u0107a valjak #2060, dok naizmjeni\u010dni zubi prolaze kroz raspon lanca bez kontakta. Ovo je funkcionalno ispravno pri malim brzinama. Za brzine iznad pribli\u017eno 30 m\/min ili tamo gdje je buka problem, namjenski lan\u010danici s dvostrukim korakom (s naizmjeni\u010dnim punim zubima i kra\u0107im odstojnim zubima) pobolj\u0161avaju glatko\u0107u zahva\u0107anja. Obrnuto - standardni lanac #60 na lan\u010danicima s dvostrukim korakom - tako\u0111er je mogu\u0107, pri \u010demu svaki zub lan\u010danika zahva\u0107a valjak. Budu\u0107i da lan\u010danici s dvostrukim korakom imaju manje zuba po promjeru od lan\u010danika standardnog koraka, kori\u0161tenje standardnog lanca na lan\u010daniku s dvostrukim korakom proizvodi ve\u0107i efektivni omjer brzine nego \u0161to sam broj zuba sugerira.<\/div>\n<\/details>\n<details style=\"border: 1px solid #dde3ea; border-radius: 8px; overflow: hidden; margin-bottom: 10px;\">\n<summary style=\"padding: 16px 20px; font-weight: bold; cursor: pointer; background: #f4f6f8; font-size: clamp(13px,1.4vw + 8px,16px); list-style: none; color: #1a2332;\">Postoji li ekvivalent dvostrukog koraka za svaku standardnu \u200b\u200bANSI veli\u010dinu lanca?<\/summary>\n<div style=\"padding: 16px 20px; font-size: clamp(13px,1.3vw + 8px,15px); color: #445566; line-height: 1.78; border-top: 1px solid #dde3ea;\">Postoje varijante s dvostrukim korakom za naj\u010de\u0161\u0107e kori\u0161tene ANSI veli\u010dine lanaca: od #2040 do #2120 u standardnim komercijalnim zalihama. ANSI #25 i #35 nemaju standardne ekvivalente s dvostrukim korakom jer su ove veli\u010dine koraka ve\u0107 male - varijanta s dvostrukim korakom bi imala korak od 12,70 mm (dvostruki #25 = korak ANSI #40) ili korak od 19,05 mm (dvostruki #35 = korak ANSI #60), koji ve\u0107 postoje kao zasebne standardne veli\u010dine. Iznad #120, lanac s dvostrukim korakom dostupan je po posebnoj narud\u017ebi, ali ne kao standardna zaliha. Za vrlo te\u0161ke transportne primjene koje zahtijevaju geometriju s dvostrukim korakom i velikom nosivo\u0161\u0107u, lanac in\u017eenjerske klase je obi\u010dno ispravna specifikacija, a ne standardni valjkasti lanac s dvostrukim korakom.<\/div>\n<\/details>\n<details style=\"border: 1px solid #dde3ea; border-radius: 8px; overflow: hidden; margin-bottom: 10px;\">\n<summary style=\"padding: 16px 20px; font-weight: bold; cursor: pointer; background: #f4f6f8; font-size: clamp(13px,1.4vw + 8px,16px); list-style: none; color: #1a2332;\">Kako da izra\u010dunam u\u0161tedu na te\u017eini za moju specifi\u010dnu zamjenu lanca s dvostrukim korakom?<\/summary>\n<div style=\"padding: 16px 20px; font-size: clamp(13px,1.3vw + 8px,15px); color: #445566; line-height: 1.78; border-top: 1px solid #dde3ea;\">U\u0161teda te\u017eine po metru = (standardna te\u017eina lanca po metru) \u2212 (te\u017eina lanca s dvostrukim korakom po metru). Za konverziju s #60 na #2060: 0,84 \u2212 0,45 = 0,39 kg\/m u\u0161tede po niti. Za kompletan transportni krug s 28 metara lanca: smanjenje te\u017eine lanca od 0,39 \u00d7 28 = 10,9 kg smanjenja te\u017eine lanca. Za sistem s dvije niti: smanjenje od 21,8 kg. Ovo smanjenje te\u017eine direktno smanjuje zahtjev za po\u010detnim momentom motora i mo\u017ee omogu\u0107iti manji pogonski motor. Za izra\u010dun u\u0161tede snage motora: smanjena te\u017eina lanca \u00d7 g \u00d7 brzina transportera = u\u0161teda energije zbog smanjene komponente inercije lanca. Za spore transportere gdje je te\u017eina lanca zna\u010dajan dio ukupne te\u017eine sistema, ovaj prora\u010dun \u010desto otkriva da konverzija lanca s dvostrukim korakom smanjuje potrebnu snagu pogonskog motora za jednu standardnu \u200b\u200bveli\u010dinu okvira.<\/div>\n<\/details>\n<details style=\"border: 1px solid #dde3ea; border-radius: 8px; overflow: hidden; margin-bottom: 10px;\">\n<summary style=\"padding: 16px 20px; font-weight: bold; cursor: pointer; background: #f4f6f8; font-size: clamp(13px,1.4vw + 8px,16px); list-style: none; color: #1a2332;\">Da li je lanac s dvostrukim korakom dostupan u zatvorenoj (O-prsten) konfiguraciji za prehrambenu ili poljoprivrednu primjenu?<\/summary>\n<div style=\"padding: 16px 20px; font-size: clamp(13px,1.3vw + 8px,15px); color: #445566; line-height: 1.78; border-top: 1px solid #dde3ea;\">Da \u2014 zatvoreni lanac s dvostrukim korakom i O-prstenovima dostupan je u varijantama #2040, #2050, #2060 i #2080, u varijantama s vanjskom plo\u010dom od uglji\u010dnog \u010delika i nehr\u0111aju\u0107eg \u010delika. Zaptivka se postavlja na spoj klina i \u010dahure, identi\u010dna je po funkciji kao i lanac sa standardnim korakom. Prednosti u poljoprivrednim primjenama su iste kao i kod standardnog zatvorenog lanca \u2014 fabri\u010dki nanesena mast se zadr\u017eava interno, a abrazivne \u010destice se isklju\u010duju iz otvora klina. U primjenama u preradi hrane koje koriste lanac s dvostrukim korakom i produ\u017eenim klinovima za nadzemne transportne sisteme, zatvoreni lanac od nehr\u0111aju\u0107eg \u010delika s dvostrukim korakom u 316L s NSF H1 ma\u0161\u0107u za unutra\u0161nju upotrebu prehrambene kvalitete je preporu\u010dena specifikacija za okru\u017eenja s ispiranjem gdje se tradicionalni intervali podmazivanja ne mogu odr\u017eavati.<\/div>\n<\/details>\n<p><!-- CTA --><\/p>\n<div style=\"background: #111820; border-radius: 14px; padding: clamp(36px,5vw,64px) clamp(24px,5vw,56px); margin-top: 56px; display: flex; flex-wrap: wrap; gap: 28px; align-items: center;\">\n<div style=\"flex: 1; min-width: 260px;\">\n<h2 style=\"font-family: 'Barlow Condensed',Arial Narrow,sans-serif; font-size: clamp(22px,3vw,40px); font-weight: 800; color: #ffffff; text-transform: uppercase; border: none; padding: 0; margin: 0 0 12px 0; line-height: 1.0; letter-spacing: -0.3px;\">Lanac s dvostrukim korakom u standardnoj i konfiguraciji s produ\u017eenim klinovima<\/h2>\n<p style=\"color: rgba(255,255,255,0.72); font-size: clamp(13px,1.4vw,16px); line-height: 1.72; margin: 0;\">Modeli od #2040 do #2120 na lageru u korejskom skladi\u0161tu. Standardne, varijante s produ\u017eenim klinovima, K-priklju\u010dak, od uglji\u010dnog \u010delika i nehr\u0111aju\u0107eg \u010delika. Dostupnost standardnih konfiguracija u istoj sedmici - prije naru\u010divanja provjerite seriju, vrstu priklju\u010dka i broj \u017eica.<\/p>\n<\/div>\n<div style=\"flex: 0 0 auto; display: flex; flex-direction: column; gap: 12px; min-width: 200px;\"><a style=\"display: block; background: #e8890a; color: #ffffff; padding: 14px 28px; border-radius: 6px; font-weight: bold; text-decoration: none; font-size: clamp(13px,1.4vw,15px); text-align: center;\" href=\"https:\/\/sprocket-chain.net\/bs\/kategorija-proizvoda\/chain\/\">Pregledajte lanac s dvostrukim korakom<\/a><br \/>\n<a style=\"display: block; background: transparent; color: #ffffff; padding: 14px 28px; border-radius: 6px; font-weight: bold; text-decoration: none; font-size: clamp(13px,1.4vw,15px); text-align: center; border: 2px solid rgba(255,255,255,0.32);\" href=\"https:\/\/sprocket-chain.net\/bs\/contact-us\/\">Zatra\u017eite savjet o konfiguraciji<\/a><\/div>\n<\/div>\n<\/div>\n<p>Urednik: Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Product Comparison \u00b7 Selection Guide Double-Pitch vs Standard Roller Chain: Which to Use and When the Choice Matters Double-pitch chain costs less per metre, weighs less, and runs correctly on the same sprockets as its standard-pitch equivalent. The tradeoff \u2014 speed limitation \u2014 is decisive for some applications and irrelevant for others. Confirm the Right [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[6634],"tags":[72,78,58],"class_list":["post-3328","post","type-post","status-publish","format-standard","hentry","category-chain-sprocket","tag-chain","tag-chain-sprocket","tag-sprocket"],"_links":{"self":[{"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/posts\/3328","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/comments?post=3328"}],"version-history":[{"count":3,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/posts\/3328\/revisions"}],"predecessor-version":[{"id":3331,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/posts\/3328\/revisions\/3331"}],"wp:attachment":[{"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/media?parent=3328"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/categories?post=3328"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sprocket-chain.net\/bs\/wp-json\/wp\/v2\/tags?post=3328"}],"curies":[{"name":"radni list","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}