The sheave rotates on a hollow pin with the line passing through the pin’s centre. This type of arrangement reduces the height of the line off the deck, and the side loads on the block. The line position and its direction to the winch does not change, even when the sheave is articulated off-centre. Body completely made in hard black anodized aluminium. Sheave on Composite Fibre bearing and two side ball bearing. Insulating washer under the fixing screws.

Mounting screws, nuts and washers are included.