Ronstan Series 40 Orbit RT Block with Quin, Becket, Cleat & Swivel

Series 40 Orbit RT Block with Quin, Becket, Cleat Swivel

The Series 40 ball-bearing Orbit Blocks provides the perfect balance of strength, performance, and reliability. They offer class-leading dynamic and static load ratings, the highest available in this size of performance blocks. Lightweight and strong toughened glass fiber reinforced nylon cheeks replace stainless steel straps used in traditional utility blocks - the perfect balance of performance and reliability.

As well as traditional single swivel blocks, the range also includes single and double sheave lashing or soft attachment options through to multiple sheave blocks including those with quad and quin sheaves. The range is extremely versatile allowing a multitude of possible systems right up to a 12:1 purchase mainsheet system for off-the-beach performance catamarans.

Series 40 Orbit Blocks are fitted with our carbon-reinforced C-Cleat for secure rope holding with low entry and exit efforts, and fairleads for fast action from any angle. Cleat arms are made from stainless steel and adjustable for setting your preferred cleating angle.

Ball Bearing versions incorporate our 2-stage bearing system using ball bearings to minimize friction and a secondary full-contact bearing to maintain low friction across the full working load range.

High Load versions are designed specifically for any application where high dynamic or static loads are expected. They feature a high-strength grade 2205 stainless steel sheave hub together with a triple bearing race to maintain low friction at very high loads.

Features:

• Class-leading dynamic and static load ratings
• Lightweight, yet strong. Toughened, glass fiber reinforced nylon replaces stainless steel straps used in our traditional utility blocks
• Low friction 2-stage ball bearing system for efficient and effortless trimming
• Soft attachment, lashing and traditional swivel shackle head options
• Low profile and compact
• High performance cleating

Applications:

• Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and sportsboats to 8m (26ft)
• Halyard, vang and backstay applications on boats to 9m (30ft)
• Control line applications on larger yachts

Specifications:

• Sheave : 1-9/16 in.
• Max. Rope : 5/16 in.
• Pin : 5/32"
• M.W.L.: 1320 lb.
• B. L.: 2650 lb.
• Weight: 13.0 oz.

The Ronstan Series 40 Orbit RT Block offers a perfect combination of strength, performance, and reliability for demanding sailing applications. Designed with ball-bearing technology, this block features a low-friction 2-stage bearing system that ensures smooth operation and effortless trimming under various load conditions. Its lightweight construction is achieved through toughened glass fiber reinforced nylon cheeks, replacing traditional stainless steel straps, providing durability without added weight. This design enhances the block's overall strength and performance, making it ideal for a wide range of marine systems. The Series 40 Orbit RT Block is versatile, accommodating single and double sheave configurations, soft attachment options, and multiple sheave arrangements, including quad and quin sheaves, supporting systems up to a 12:1 purchase ratio suitable for off-the-beach performance catamarans and other high-performance vessels.

Features:

• Class-leading dynamic and static load ratings for demanding applications

• Lightweight yet strong construction with toughened glass fiber reinforced nylon cheeks

• Low friction 2-stage ball bearing system for smooth, efficient operation

• Includes soft attachment, lashing, and traditional swivel shackle head options

• Compact and low profile design for space-efficient installations

• High-performance cleating with carbon-reinforced C-Cleat ensuring secure rope hold and easy release