Ronstan Series 40 Ball Bearing Orbit Block, Single with Becket, Cleat & Swivel

Elevate your sailing performance with the Ronstan Series 40 Ball Bearing Orbit Block. Engineered for superior efficiency and durability, this ultra-lightweight block features a revolutionary 2-stage orbital ball bearing system and achieves the highest working load in its class. Experience unmatched reliability and precise control for demanding marine applications. Upgrade your rigging for peak performance today.

• Ultra-Lightweight Design: Achieves up to 30% weight savings over competitors by minimizing inactive mass, ensuring agile handling and reduced drag.
• Advanced 2-Stage Orbital Ball Bearing System: Utilizes high-compression Acetal ball bearings and a secondary full-contact bearing to deliver ultra-low friction across the entire working load range.
• Class-Leading Working Load: Features the largest possible bearing race diameter for exceptional load performance and reliability in demanding conditions.
• High-Performance Cleating: Provides secure and efficient line holding for precise control.
• Low Profile and Compact: Ensures minimal obstruction and a sleek deck aesthetic.
• Swivel Shackle Head: Allows for unlimited block rotation and compatibility with various attachment points, including sharp fixings.
• Durable High-Performance Construction: Built with a fiber-reinforced load frame and sheave crafted from carbon fiber reinforced, PTFE-impregnated Nylon, with high-compression Acetal ball bearings for maximum strength and longevity.

• Ideal for mainsheet systems and spinnaker sheets on dinghies, sportsboats, and small keel boats up to 5m (16ft).
• Suitable for halyard, vang, and backstay applications on boats up to 8m (26ft).
• Excellent for control line applications on larger yachts.