{"product_id":"lewmar-60mm-synchro-single-block-1-760-lb-working-load-limit-fits-5-16-to-3-8-inch-line-29926001bk","title":"Lewmar 60mm Synchro Single Block, 1,760 lb Working Load Limit, Fits 5\/16 to 3\/8 Inch Line - 29926001BK","description":"\u003cp\u003eThe Lewmar 60mm Synchro Single Block (29926001BK) is a single-sheave sailing block engineered for efficient rope handling on halyards, mainsheet systems, mast foot and head blocks, and boom vangs. The 60mm sheave is sized to accommodate line diameters from 5\/16 inch to 3\/8 inch and carries a 1,760 pound working load limit, giving it the strength for demanding running rigging applications.\u003c\/p\u003e\u003cp\u003eA high-density Free-Spin bearing reduces axle diameter and rope friction, delivering smoother power transfer and less rope wear compared to standard budget blocks. The block geometry and self-aligning head are optimized to keep the sheave tracking true under load, and the design allows an easy switch between swiveling and fixed shackle configurations to suit different rigging setups. Stiff glass fiber reinforced cheeks resist flexing and help prevent lines from wedging between the sheave and the block body, while a stainless steel strap adds strength and extends service life. The shackle post is precision-designed for compatibility with Lewmar traveler systems.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Lewmar\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e 29926001BK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Single Block (Synchro Series)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheave Diameter:\u003c\/strong\u003e 60 millimeters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWorking Load Limit:\u003c\/strong\u003e 1,760 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLine Diameter Range:\u003c\/strong\u003e 5\/16 inch to 3\/8 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBearing Type:\u003c\/strong\u003e High-density Free-Spin bearing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheek Material:\u003c\/strong\u003e Glass fiber reinforced\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStrap Material:\u003c\/strong\u003e Stainless steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShackle Configuration:\u003c\/strong\u003e Switchable between swiveling and fixed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight:\u003c\/strong\u003e 0.8 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUPC:\u003c\/strong\u003e 743683203787\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eWhat line size does the Lewmar 29926001BK Synchro Single Block accept?\u003c\/strong\u003e The 29926001BK accommodates line diameters from 5\/16 inch to 3\/8 inch, matching its 60 millimeter sheave.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the working load limit of this block?\u003c\/strong\u003e 1,760 pounds is the working load limit for the Lewmar 60mm Synchro Single Block, 29926001BK.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the shackle be swapped between swiveling and fixed?\u003c\/strong\u003e Yes, the Synchro Single Block, part number 29926001BK, is designed so the shackle can be switched between a swiveling and a fixed configuration.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the sheave made to reduce friction?\u003c\/strong\u003e A high-density Free-Spin bearing in the 29926001BK reduces axle diameter and rope friction for smoother power transfer and less rope wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this block compatible with Lewmar travelers?\u003c\/strong\u003e Yes, the 29926001BK has a shackle post precision-designed for compatibility with Lewmar traveler systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat are typical uses for this block?\u003c\/strong\u003e The Lewmar 60mm Synchro Single Block is used for halyard tuning, mainsheet systems, mast foot and head blocks, and boom vangs.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat material are the block cheeks made from?\u003c\/strong\u003e The cheeks on the 29926001BK are stiff glass fiber reinforced construction, which helps prevent lines from wedging between the sheave and the block body.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes the block include a stainless steel strap?\u003c\/strong\u003e Yes, the 29926001BK includes a stainless steel strap for added strength and longer service life.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow much does the Lewmar 29926001BK weigh?\u003c\/strong\u003e The Lewmar 60mm Synchro Single Block, 29926001BK, weighs 0.8 pounds.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow is this block different from a standard budget block?\u003c\/strong\u003e The Synchro Single Block's optimized geometry, Free-Spin bearing, and self-aligning head are built to cut friction compared to a standard budget block, resulting in smoother handling and less rope wear.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat sheave size does the 29926001BK use?\u003c\/strong\u003e This block uses a 60 millimeter sheave diameter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the 29926001BK a single or double block?\u003c\/strong\u003e The 29926001BK is a single-sheave block, part of Lewmar's Synchro block line.\u003c\/p\u003e","brand":"Lewmar","offers":[{"title":"Default Title","offer_id":49025132560603,"sku":"LEW-29926001BK","price":38.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/LEW-29925001BK__74651.1722514135.500.750.jpg?v=1785329117","url":"https:\/\/www.goodvibesmarina.com\/products\/lewmar-60mm-synchro-single-block-1-760-lb-working-load-limit-fits-5-16-to-3-8-inch-line-29926001bk","provider":"Good Vibes Marina","version":"1.0","type":"link"}