The 20mm aluminium sheave box offers a durable, high-performance solution for enhancing the efficiency and longevity of your rigging system. Its easy-to-remove axle pin makes maintenance and swaps a simple task, held in place by either the mounting surface or the included curved backing plate. This versatile box is ideal for sailboat masts and deck installations, with various sheave materials and bearing options available for specific applications. Its CNC machined marine grade aluminium body ensures long-lasting performance, while optimising rope protection to extend its lifespan. Choose from options such as the lightweight and low-maintenance Acetal Plain Bearing, the low-friction Dynamic Ball Bearing for maximum performance, or the heavy-duty Stainless Steel Plain Bearing for highly static applications. With a maximum working load of up to 250kg, this sheave box is suitable for both rope and wire.