Ronstan Series 40 Ball Bearing Orbit Block Fiddle with Cleat and Dyneema Link Head

Ronstan Series 40 Ball Bearing Orbit Block Fiddle with Cleat and Dyneema Link Head

Introducing the RF45521 and RF55521 from Ronstan's Series 40 Ball Bearing Orbit Block lineup, engineered for optimal performance and versatility. The RF45521 features a 40mm diameter head, while the RF55521 boasts a larger 55mm diameter head. Both variants offer a lightweight design coupled with an adjustable cleat, ensuring efficiency and ease of use.

Noteworthy features include an ultra-lightweight construction and a low-friction 2-stage Orbital ball bearing system, providing smooth operation under varying loads. With the highest working load in its class, these blocks guarantee reliability and durability for demanding applications. Their low profile and compact build make them suitable for space-restricted setups while maintaining exceptional performance.

The inclusion of a high-performance composite C-Cleat and fairlead enhances their functionality, offering secure cleating with minimal effort. Additionally, users have the option to convert these blocks into a becket version by incorporating a Dyneema link, further expanding their utility and adaptability to different rigging configurations.

In terms of specifications, these blocks boast impressive figures, with a breaking load (B.L.) of 700kg and a maximum working load (M.W.L.) of 325kg. They accommodate ropes up to 9mm in diameter and weigh a mere 108 grams, ensuring they add minimal weight to your rigging setup. It's important to note that the line load through the cleat should not exceed 125kg (275lb), ensuring optimal performance and longevity.

With a small fiddle block sheave featuring a high-load full-contact bearing and the main sheave equipped with a 2-stage ball bearing system, these blocks deliver exceptional efficiency and reliability across various sailing and rigging applications. Whether you're racing or cruising, the Ronstan Series 40 Ball Bearing Orbit Blocks are a dependable choice for enhancing your sailing experience.