{"product_id":"pulegge-ermes-roller-ceramica","title":"Roller Speargun Pulleys - Ceramic","description":"\u003ch2\u003ePair of Derlin Roller Speargun Pulleys with Ceramic Core\u003c\/h2\u003e\n\u003cp\u003eThis pair of \u003cstrong\u003eRoller Speargun pulleys\u003c\/strong\u003e is made from black Derlin, a strong and lightweight material, with a \u003cstrong\u003eceramic core\u003c\/strong\u003e to ensure greater strength under both static and dynamic load. The combination of these materials provides mechanical strength and reliability during use with pneumatic and spearfishing launch systems.\u003c\/p\u003e\n\u003ch3\u003eTechnical Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOuter diameter:\u003c\/strong\u003e 28 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGroove diameter:\u003c\/strong\u003e 19 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInner diameter (shaft):\u003c\/strong\u003e 6 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness:\u003c\/strong\u003e 16 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe pulley groove is specifically designed to eliminate band slippage during contraction, improving force transmission and maintaining efficiency during speargun release or freediving gear setup.\u003c\/p\u003e\n\u003cp\u003eThe precise fit between Derlin and ceramic ensures smooth movement and reduces wear, extending the component’s service life even under frequent use in aquatic environments.\u003c\/p\u003e","brand":"Ermes","offers":[{"title":"Default Title","offer_id":56926609310041,"sku":"04.2816.01","price":54.0,"currency_code":"EUR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0993\/6732\/1945\/files\/Pulegge_Roller_-_Ceramica.png?v=1782069623","url":"https:\/\/deepbluesub.com\/en\/products\/ermes-roller-ceramic-pulleys","provider":"DEEP BLUE - Freediving \u0026 Spearfishing","version":"1.0","type":"link"}