{"product_id":"riayer-50mm-heavy-duty-single-swivel-sailing-block-with-ball-bearings-t316-stainless-steel-pa66-nylon-marine-pulley-3100-lbs-breaking-load-high-load-rigging-hardware-1-pack","title":"RiaYer 50mm Heavy-Duty Single Swivel Sailing Block with Ball Bearings, T316 Stainless Steel \u0026 PA66 Nylon Marine Pulley, 3100 lbs Breaking Load, High-Load Rigging Hardware (1-Pack)","description":"\u003cp\u003e\u003cb\u003eBrand:\u003c\/b\u003e RiaYer\u003c\/p\u003e\u003cp\u003e\u003cb\u003eColor:\u003c\/b\u003e Black\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e【Industrial-Strength Ball Bearing Action】 Designed for high-load applications, the RiaYer 50mm block integrates heavy-duty ball bearings that ensure effortless sheave rotation. This technology drastically reduces friction, allowing for rapid and precise line handling during racing or heavy industrial hoisting.\u003c\/li\u003e\n\u003cli\u003e【Dynamic 800 lbs Working Load Limit】 Engineered for maximum reliability, this 50mm block supports a Safe Working Load (WLL) of 800 lbs (360 kg) and a heavy-duty Breaking Load of 3100 lbs (1406 kg). It is a high-performance solution for larger sailboats, halyards, and jib sheets where safety and high-tension performance are non-negotiable.\u003c\/li\u003e\n\u003cli\u003e【Premium PA66 \u0026amp; T316 Stainless Steel】 Utilizing PA66 (Reinforced Nylon) for the sheave provides outstanding mechanical strength and heat resistance. Combined with a T316 Stainless Steel shackle and frame, this block provides long-term service in saltwater environments without rust or structural fatigue.\u003c\/li\u003e\n\u003cli\u003e【Multi-Functional Swivel \u0026amp; Lock System】 The shackle head offers a 3-way configuration: freely rotating 360° to eliminate line twist, or locked at 0°\/90° for stable, fixed-angle operation. This versatility is essential for complex deck layouts and heavy-duty utility tasks.\u003c\/li\u003e\n\u003cli\u003e【Optimized for Large Lines \u0026amp; Efficiency】 With a 2' (50mm) sheave diameter and a 1\/2' (12mm) groove width, it accommodates thicker lines with ease. The larger radius reduces line friction and bending stress, significantly extending the life of your ropes and rigging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cb\u003ePackage Dimensions:\u003c\/b\u003e 4.9 x 2.8 x 1.1 inches\u003c\/p\u003e","brand":"RiaYer","offers":[{"title":"Default Title","offer_id":44221443538987,"sku":"B0GH1WJ8YQ","price":45.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0679\/6745\/1179\/files\/61gP0c5P3wL.jpg?v=1781851442","url":"https:\/\/09eqw9-ux.myshopify.com\/products\/riayer-50mm-heavy-duty-single-swivel-sailing-block-with-ball-bearings-t316-stainless-steel-pa66-nylon-marine-pulley-3100-lbs-breaking-load-high-load-rigging-hardware-1-pack","provider":"Big Buy07","version":"1.0","type":"link"}