【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.
【Extreme 3300 lbs Working Load Limit】 Engineered for maximum reliability, this 50mm block supports a massive WLL of 3300 lbs (1320 kg). It is a high-performance solution for larger sailboats, halyards, and jib sheets where safety and high-tension performance are non-negotiable.
【Premium PA66 & T316 Stainless Steel】 Utilizing PA66 (Reinforced Nylon) for the sheave provides exceptional mechanical strength and heat resistance. Combined with a T316 Stainless Steel shackle and frame, this block provides a lifetime of service in saltwater environments without rust or structural fatigue.
【Multi-Functional Swivel & 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.
【Optimized for Large Lines & Efficiency】 With a 2" (50mm) sheave diameter and a 1/2" (12.7mm) 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.
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