{"title":"Polyflex JB Joined Belts","description":"\u003ch2\u003ePolyflex Joined Belt Selection — Quick Reference\u003c\/h2\u003e\n\u003cp\u003ePolyflex joined belts — RIBBED V-BELTS with JOINED MULTI-RIB construction for heavy industrial drives. Workshop + production + mining + manufacturing where single belts can't transmit needed power. Match PROFILE + ribs to pulley.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003ePolyflex Joined Type\u003c\/th\u003e\n\u003cth\u003eBest For\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePolyflex JB (Joined Belt)\u003c\/td\u003e\n\u003ctd\u003eWorkshop + production drives\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e3M \/ 5M \/ 7M \/ 11M Profiles\u003c\/td\u003e\n\u003ctd\u003eVarious power ranges\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJoined Multi-Rib Construction\u003c\/td\u003e\n\u003ctd\u003eSynchronous belt running\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHigh-Speed Compatible\u003c\/td\u003e\n\u003ctd\u003ePerformance applications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMatch Polyflex Pulley\u003c\/td\u003e\n\u003ctd\u003eSee \u003ca href=\"\/en-nz\/collections\/pulleys\"\u003epulleys\u003c\/a\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorkshop Heavy-Duty\u003c\/td\u003e\n\u003ctd\u003eReliable industrial drive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGates Premium Quality\u003c\/td\u003e\n\u003ctd\u003eWorkshop reliability\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cstrong\u003eCritical:\u003c\/strong\u003e Match PROFILE + RIB count + length to pulley. Replace ENTIRE belt when worn. Check pulley alignment + tension. Brands: \u003ca href=\"\/en-nz\/collections\/gates\"\u003eGates\u003c\/a\u003e. Companion: \u003ca href=\"\/en-nz\/collections\/belts\"\u003ebelts\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/polychain-belts\"\u003ePolyChain belts\u003c\/a\u003e, \u003ca href=\"\/en-nz\/collections\/heavy-duty-drive-belts\"\u003eheavy-duty drive belts\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eGates Polyflex JB Joined Belts\u003c\/h2\u003e\n\u003cp\u003eThe Polyflex JB (Joined Belt) range comprises multiple Polyflex V-belts physically joined into a single multi-rib belt unit — increasing the power capacity of a Polyflex drive without going to a wider single belt or installing multiple separate belts. AIMS Industrial supplies the Gates Polyflex JB range for industrial drives where higher power capacity is needed in a compact installation.\u003c\/p\u003e\n\n\u003ch3\u003eHow JB belts differ from single Polyflex\u003c\/h3\u003e\n\u003cp\u003eA Polyflex JB belt is functionally several Polyflex belts running in parallel, but joined at the top and bottom into a single belt unit. The advantages over running multiple separate belts: matched length and tension across all ribs (since they're physically the same belt), better load sharing under shock or impact, and simplified installation and replacement (one belt, not three or four). The advantages over a single wider belt: better flexibility around pulleys, ability to run smaller pulley diameters, and the same superior temperature\/speed\/abrasion characteristics of the Polyflex polyurethane construction.\u003c\/p\u003e\n\n\u003ch3\u003eWhere JB belts earn their place\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher-power compact drives\u003c\/strong\u003e — pumping equipment, small machine tools, and industrial drives where a single Polyflex isn't enough\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDrives subject to shock loading\u003c\/strong\u003e — the joined construction handles impact loads better than multiple separate belts\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement of multi-belt rubber V-belt drives\u003c\/strong\u003e — JB Polyflex can replace 2-, 3-, or 4-belt rubber drives where the application benefits from polyurethane construction\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM equipment\u003c\/strong\u003e — common in industrial equipment where space and power requirements both push toward compact, high-performance drives\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eBelt designation\u003c\/h3\u003e\n\u003cp\u003ePolyflex JB belts are designated by base profile, joined-belt count, and length. A typical designation might be 7M-1180-2JB, indicating a 7M profile, 1180mm pitch length, with 2 belts joined. Matching the designation to the drive specification is essential — substituting different rib counts or lengths means re-engineering the drive.\u003c\/p\u003e\n\n\u003ch3\u003ePulley compatibility\u003c\/h3\u003e\n\u003cp\u003ePolyflex JB belts require pulleys with matching multi-groove geometry — single-groove pulleys won't work, and the groove pitch on the pulley must match the rib pitch on the JB belt. When specifying a JB drive, both the belt and the pulleys need to be from the matching range; mixing brands or substituting non-matching pulleys causes premature belt failure.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Gates\u003c\/h3\u003e\n\u003cp\u003eThe Polyflex JB range is a Gates engineered product — the polyurethane formulation, tensile cord construction, and joined-belt manufacturing process are proprietary and have been refined over decades of industrial application. For high-performance compact drives, Gates Polyflex JB is the established choice.\u003c\/p\u003e\n\n\u003cp\u003eNeed help with selection, cross-reference, or sourcing? \u003ca href=\"\/en-nz\/pages\/contact-us\"\u003econtact our team\u003c\/a\u003e — we'll work through the application.\u003c\/p\u003e","products":[{"product_id":"gates-polyflex-jb-joined-v-belt","title":"Gates Polyflex JB Joined V Belt","description":"\u003cdiv style=\"max-width:780px;width:100%;padding:12px 0;font-family:Arial,sans-serif\"\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e◆\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003ePolyflex polyurethane V-belt\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e●\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eAramid tensile cord for high-load drives\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e▲\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eWide speed range, low maintenance service\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"height:18px\"\u003e\u003c\/div\u003e\n\u003cp\u003eOn this polyurethane belt range, the polyurethane construction supports a wide speed range on small diameter sheaves. A Gates drive belt fits the published Gates Polyflex drive tables.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"Light-Duty Belt \/ 800 \/ 10","offer_id":49399794827541,"sku":"A0033772","price":85.99,"currency_code":"AUD","in_stock":true},{"title":"Light-Duty Belt \/ 825 \/ 10","offer_id":49399794860309,"sku":"A0033773","price":86.27,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/gates-polyflex-jb-joined-v-belt-7857777.jpg?v=1773126385"},{"product_id":"gates-polyflex-jb-joined-v-belt-11m-section","title":"Gates Polyflex JB Joined V Belt - 11M Section","description":"\u003cdiv style=\"max-width:780px;width:100%;padding:12px 0;font-family:Arial,sans-serif\"\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e◆\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003ePolyflex polyurethane V-belt\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e●\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eAramid tensile cord for high-load drives\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e▲\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eWide speed range, low maintenance service\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"height:18px\"\u003e\u003c\/div\u003e\n\u003cp\u003eOn this polyurethane belt range, the polyurethane construction supports a wide speed range on small diameter sheaves. A Gates drive belt fits the published Gates Polyflex drive tables.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"800 \/ 22 \/ 2","offer_id":49402530267413,"sku":"A0034201","price":161.47,"currency_code":"AUD","in_stock":false},{"title":"800 \/ 33 \/ 3","offer_id":49402530398485,"sku":"A0034243","price":242.21,"currency_code":"AUD","in_stock":false},{"title":"1400 \/ 22 \/ 2","offer_id":49402530169109,"sku":"A0034179","price":222.55,"currency_code":"AUD","in_stock":true},{"title":"1400 \/ 33 \/ 3","offer_id":49402530300181,"sku":"A0034221","price":333.84,"currency_code":"AUD","in_stock":true},{"title":"1900 \/ 22 \/ 2","offer_id":49402530201877,"sku":"A0034189","price":273.13,"currency_code":"AUD","in_stock":false},{"title":"1900 \/ 33 \/ 3","offer_id":49402530332949,"sku":"A0034231","price":267.44,"currency_code":"AUD","in_stock":false},{"title":"1950 \/ 22 \/ 2","offer_id":49402530234645,"sku":"A0034190","price":275.09,"currency_code":"AUD","in_stock":false},{"title":"1950 \/ 33 \/ 3","offer_id":49402530365717,"sku":"A0034232","price":269.33,"currency_code":"AUD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/gates-polyflex-jb-joined-v-belt-11m-section-6862677.jpg?v=1773126165"},{"product_id":"gates-polyflex-jb-joined-v-belt-7m-section","title":"Gates Polyflex JB Joined V Belt - 7M Section","description":"\u003cdiv style=\"max-width:780px;width:100%;padding:12px 0;font-family:Arial,sans-serif\"\u003e\n\u003cdiv style=\"display:grid;grid-template-columns:1fr 1fr 1fr;gap:24px\"\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e◆\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e7M Polyflex polyurethane V-belt\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e●\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eAramid tensile cord for high-load drives\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display:flex;align-items:flex-start;gap:8px\"\u003e\n\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003e▲\u003c\/span\u003e\u003cspan style=\"font-size:14px;color:#333;line-height:1.5\"\u003eWide speed range, low maintenance service\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"height:18px\"\u003e\u003c\/div\u003e\n\u003cp\u003eOn this polyurethane belt range, the polyurethane construction supports a wide speed range on small diameter sheaves. A Gates drive belt fits the published Gates Polyflex drive tables.\u003c\/p\u003e","brand":"Gates","offers":[{"title":"2\/7M1280JB \/ 1280","offer_id":49430911156501,"sku":"A0033961","price":133.4,"currency_code":"AUD","in_stock":false},{"title":"3\/7M1320JB \/ 1320","offer_id":49430911123733,"sku":"A0034016","price":206.19,"currency_code":"AUD","in_stock":false},{"title":"4\/7M1900JB \/ 1900","offer_id":49430911090965,"sku":"A0034082","price":362.37,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0740\/5191\/1957\/files\/gates-polyflex-jb-joined-v-belt-7m-section-6927402.jpg?v=1773123439"}],"url":"https:\/\/aimsindustrial.com.au\/en-nz\/collections\/polyflex-joined-belts.oembed","provider":"AIMS Industrial Supplies","version":"1.0","type":"link"}