Ronstan Series 40 Double Block with Becket & Swivel

The Series 40 Orbit BB Double Block is designed for optimal performance, featuring a lightweight yet strong construction that combines toughened glass fiber reinforced nylon with stainless steel components. This innovative design ensures low friction and high reliability, making it suitable for a variety of sailing applications.

The block is equipped with a carbon-reinforced C-Cleat for secure rope holding, making it easier to manage lines. The advanced 2-stage ball bearing system minimizes friction during operation, enabling efficient and effortless trimming. Suitable for mainsheet systems, spinnaker sheets on dinghies, and both halyard and control line applications, this block caters to boats of various sizes.

Key Specifications:

• Sheave Ø: 1-9/16 in.
• Max. Rope Ø: 3/8 in.
• Pin Ø: 5/32 in.
• M.W.L.: 1320 lb.
• B.L.: 2650 lb.
• Weight: 4.6 oz.

• Lightweight, high-strength nylon construction
• Low-friction 2-stage ball bearing system
• Versatile attachment options including soft attachment and swivel shackle
• Compact and low-profile design for efficient use
• High-performance cleating for secure line handling