Hard 3 Blocks - Ceramic

Ermes Hard 3 - Ceramic: Pulley System for Invert Roller Spearguns

Hard 3 - Ceramic is a pulley system designed specifically for Invert Roller spearguns, engineered to optimize load distribution and ensure even balance across the speargun structure.

The pair of pulleys ensures proper alignment and orderly routing of the elastic line, improving thrust transmission smoothness and symmetrically supporting the forces applied during the speargun loading phase. This system helps maintain consistent mechanical efficiency and reliability of the weapon while underwater.

Materials and Technical Features

• Stainless steel frame made by laser cutting, ensuring mechanical strength and long-lasting durability even in marine environments.
• Pulleys equipped with ceramic bearings, which reduce friction while providing greater smoothness and responsiveness in the speargun mechanism.
• Pulley diameter: 22 mm, for proper band wrapping without deformation.
• Pulley height: 5 mm, an ideal size for a compact footprint while ensuring effective load distribution.

This pulley system is suitable for freedivers and spearfishers using spearguns with an Invert Roller mechanism, as it combines lightness and mechanical strength, ensuring more efficient force transmission and maintaining the speargun’s trim during spearfishing.