Ronstan RF45711 Series 40 Orbit Ball Bearing Exit Block

Series 40 Orbit Ball Bearing Exit Block

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 are adjustable for setting to 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, highest in their class


• 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, OTB catamarans and sportsboats to 8m (26ft)


• Halyard, vang and backstay applications on boats to 9m (30ft)


• Control line applications on larger yachts

Specifications:

• Sheave Ø: 1-9/16 in.


• Max. Rope Ø: 3/8 in.


• M.W.L.: 880/1760 lb.


• B. L.: 4410 lb.


• Weight: 9.5 oz.

Ronstan Series 40 Orbit Ball Bearing Exit Block is engineered to provide an exceptional balance of strength, performance, and reliability. This robust block features class-leading dynamic and static load ratings, making it the highest-rated option in its size category. Constructed with toughened glass fiber reinforced nylon cheeks, it replaces traditional stainless steel straps for enhanced lightweight durability and performance.

The Series 40 includes various options from single swivel blocks to multiple sheave configurations, accommodating systems up to a 12:1 purchase for optimal performance in off-the-beach catamarans. Each block is equipped with Ronstan*s carbon-reinforced C-Cleat* that offers secure rope holding with minimal entry and exit resistance, along with fairleads designed for swift action from any angle. The adjustable stainless steel cleat arms allow for customized cleating angles to suit your needs.

This ball bearing version utilizes a unique 2-stage bearing system that reduces friction while maintaining efficiency across the load range. The high-load variants are crafted for applications with demanding dynamic or static load requirements, featuring a high-strength stainless steel sheave and hub with a triple bearing race for maintaining low friction even under extreme loads.

Features:
* Class-leading dynamic and static load ratings, highest in their class
* Lightweight yet strong with toughened, glass fiber reinforced nylon replacing traditional stainless steel straps
* Low friction 2-stage ball bearing system for efficient and effortless trimming
* Soft attachment, lashing, and traditional swivel shackle head options for versatility
* Low profile and compact design for easy integration
* High performance cleating mechanism for reliable operation