40mm Single Dynamic Bearing Block with Swivel Head
Upgrade your vessel's rigging with the Allen 40mm Single Dynamic Bearing Block with Swivel Head from Big Burjo's Marine. This 40mm dynamic bearing block is part of our Blocks category, designed to deliver smooth, low-friction line control for halyards, sheets and other control lines. The swivel head enables easy sheave alignment as you adjust rig tension, while the robust construction from Allen ensures durability under demanding coastal conditions. Perfect for deck hardware setups and boat care, this block helps keep lines running tidy and efficient across all sailing and mooring tasks.
Free delivery Australia-wide on orders over $350. We deliver to every marina, port, coastal town in Australia, including Mackay Marina, Manly Harbour, and Moreton Bay. Shop with Big Burjo's Marine for reliable marine parts, boat parts, and blocks that stand up to rugged Australian waters. All orders come with fast dispatch and full product support to help you select the right block for your rig.
Details
Full specifications, features and technical details for this product are listed in the description above. Need help checking compatibility with your vessel, caravan or 4x4? Contact our Gold Coast team on 0416 180 996 or sales@bigburjos.com and we'll confirm fitment before you order.
Shipping & Returns
Shipping (Australia-wide): Orders over $350 AUD ship free. Orders under $350 have a $15 AUD flat-rate delivery fee. Standard delivery takes 3–11 business days depending on your location; express options (1–3 business days) are available at checkout. Orders are dispatched within 1–2 business days.
Returns: We offer a 30-day return policy. Items must be unused and in original packaging. Contact us at sales@bigburjos.com or 0416 180 996 to start a return. See our full Shipping Policy and Refund Policy for details, including your rights under Australian Consumer Law.