Ronstan Series 40 Orbit Single BB Block - Stand-Up Design

This innovative block features a ball-bearing design, optimally balancing strength and lightweight construction. Built with toughened, glass fiber reinforced nylon, it eliminates traditional stainless steel components for improved performance and reliability. The Series 40 Orbit Blocks™ are engineered for high dynamic and static loads, making them a versatile choice for a wide range of applications, including high-performance catamarans.

Designed for effective use in mainsheet systems, the block also includes various attachment options like soft attachment, lashing, and conventional shackle heads. The adjustable stainless steel cleat arms offer customizable cleating angles, while the integrated carbon-reinforced C-Cleat™ ensures secure rope holding with minimal friction, enabling swift and efficient trimming.

With options tailored for high load applications, including a high-strength stainless steel sheave and an advanced triple bearing race system, these blocks maintain peak performance even under substantial stress.

• Outstanding dynamic and static load capacity
• Lightweight design with robust glass fiber reinforced nylon
• Efficient 2-stage ball bearing system for low friction
• Multiple attachment options: soft lashing or traditional shackle
• Compact and low profile build
• High-performance cleating mechanism for secure line holding