{"product_id":"57mm-carbo-air-block-wswivel","title":"57MM SINGLE CARBO AIR BLOCK W\/SWIVEL","description":"\u003ch2 data-start=\"0\" data-end=\"42\"\u003eHarken 57mm Carbo Air Block with Swivel\u003c\/h2\u003e\n\u003cp data-start=\"44\" data-end=\"450\"\u003eThe \u003cstrong data-start=\"48\" data-end=\"91\"\u003eHarken 57mm Carbo Air Block with Swivel\u003c\/strong\u003e is a lightweight, low-friction pulley built for smooth line handling in higher-load rigging setups. With a larger 57mm sheave and stronger load rating than the smaller Carbo blocks, this block is a solid choice for outrigger rigging, dredge pulley setups, teaser systems, control lines, and other custom marine applications where clean line movement matters.\u003c\/p\u003e\n\u003cp data-start=\"452\" data-end=\"758\"\u003eThe swivel head helps the block align naturally under load, reducing line twist and keeping your rigging running smoothly. Harken’s Carbo Air construction keeps the block light without sacrificing strength, making it a dependable option for boat rigging where performance and durability are both important.\u003c\/p\u003e\n\u003ch3 data-start=\"760\" data-end=\"776\"\u003eKey Features\u003c\/h3\u003e\n\u003cul data-start=\"778\" data-end=\"1133\"\u003e\n\u003cli data-start=\"778\" data-end=\"805\"\u003eSingle 57mm sheave design\u003c\/li\u003e\n\u003cli data-start=\"806\" data-end=\"846\"\u003eSwivel head for cleaner line alignment\u003c\/li\u003e\n\u003cli data-start=\"847\" data-end=\"883\"\u003eLightweight Carbo Air construction\u003c\/li\u003e\n\u003cli data-start=\"884\" data-end=\"923\"\u003eLow-friction ball bearing performance\u003c\/li\u003e\n\u003cli data-start=\"924\" data-end=\"977\"\u003eStrong working load for larger rigging applications\u003c\/li\u003e\n\u003cli data-start=\"978\" data-end=\"1006\"\u003eWorks with line up to 3\/8\"\u003c\/li\u003e\n\u003cli data-start=\"1007\" data-end=\"1096\"\u003eGreat for custom rigging, dredge setups, teaser systems, and marine tackle applications\u003c\/li\u003e\n\u003cli data-start=\"1097\" data-end=\"1133\"\u003eManufacturer part number: \u003cstrong data-start=\"1125\" data-end=\"1133\"\u003e2600\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1135\" data-end=\"1144\"\u003eSpecs\u003c\/h3\u003e\n\u003cul data-start=\"1146\" data-end=\"1377\"\u003e\n\u003cli data-start=\"1146\" data-end=\"1173\"\u003e\n\u003cstrong data-start=\"1148\" data-end=\"1159\"\u003eSheave:\u003c\/strong\u003e 57mm \/ 2-1\/4\"\u003c\/li\u003e\n\u003cli data-start=\"1174\" data-end=\"1203\"\u003e\n\u003cstrong data-start=\"1176\" data-end=\"1187\"\u003eLength:\u003c\/strong\u003e 110mm \/ 4-5\/16\"\u003c\/li\u003e\n\u003cli data-start=\"1204\" data-end=\"1230\"\u003e\n\u003cstrong data-start=\"1206\" data-end=\"1217\"\u003eWeight:\u003c\/strong\u003e 3.1 oz \/ 87g\u003c\/li\u003e\n\u003cli data-start=\"1231\" data-end=\"1261\"\u003e\n\u003cstrong data-start=\"1233\" data-end=\"1249\"\u003eShackle Pin:\u003c\/strong\u003e 3\/16\" \/ 5mm\u003c\/li\u003e\n\u003cli data-start=\"1262\" data-end=\"1298\"\u003e\n\u003cstrong data-start=\"1264\" data-end=\"1286\"\u003eMax Line Diameter:\u003c\/strong\u003e 3\/8\" \/ 10mm\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1337\"\u003e\n\u003cstrong data-start=\"1301\" data-end=\"1322\"\u003eMax Working Load:\u003c\/strong\u003e 792 lb \/ 359kg\u003c\/li\u003e\n\u003cli data-start=\"1338\" data-end=\"1377\"\u003e\n\u003cstrong data-start=\"1340\" data-end=\"1358\"\u003eBreaking Load:\u003c\/strong\u003e 2,380 lb \/ 1,079kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1379\" data-end=\"1652\"\u003eThe Harken 57mm Carbo Air Block is a strong, smooth-running option when you need a larger single-sheave block for clean line management and custom marine rigging.\u003c\/p\u003e","brand":"HARKEN","offers":[{"title":"Default Title","offer_id":51653393449250,"sku":"097653076056","price":63.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0945\/1477\/4306\/files\/product_958f2924-ef43-471b-ad5b-51c4b3e6dac3.jpg?v=1779301130","url":"https:\/\/whitestackle.com\/products\/57mm-carbo-air-block-wswivel","provider":"WHITE'S TACKLE ","version":"1.0","type":"link"}