The Ronstan fiddle block is a versatile sailing accessory commonly used in rigging systems aboard yachts and boats. It features two sheaves arranged in tandem, with one smaller sheave mounted above the larger one, resembling the shape of a violin's fiddle. This design allows for a 2:1 purchase system, effectively doubling the mechanical advantage when tensioning lines or hoisting sails. The fiddle block is often employed in halyard systems, mainsheet tackles, and other applications requiring increased line control and power distribution.
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41500 Series 40 All Purpose Block - Fiddle combines precision engineering with exceptional versatility. Designed to accommodate ropes up to 10 mm in diameter, this block offers outstanding strength with a Safe Working Load (SWL) of 400 daN and a Breaking Load (BL) of 1000 daN. The fiddle configuration enhances efficiency, making it an indispensable piece of equipment for various rigging applications on the water.
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€ 42,57
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41510 Series 40 All Purpose Block Fiddle with Becket is an expertly engineered piece of sailing hardware designed for high performance. With a maximum working load of 400 kg and a breaking load of 1000 kg, it ensures reliability even under extreme conditions. Featuring a low-maintenance design, Captive Lock universal head, and a slotted pin shackle, it simplifies rigging and enhances maneuverability, making it an indispensable tool for sailors of all levels.
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€ 47,71
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41520 Series 40 All Purpose Block Fiddle with Cam Cleat is a high-performance sailing block, featuring a self-lubricating sheave, multi-position cleat arm, and Captive Lock universal head. With a Breaking Load (B.L.) of 1000kg and a Maximum Working Load (M.W.L.) of 375kg, this durable and lightweight block ensures smooth operation and adaptability in challenging conditions, making it an essential tool for sailors seeking precision and reliability.
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€ 78,37
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41530 Series 40 All Purpose Block Fiddle with Becket and Cam Cleat is engineered for versatile, high-performance sailing. Designed for low maintenance and long-lasting use, this block features a self-lubricating sheave, Captive Lock universal head, snap-fit removable becket pin, and a multi-position cleat arm for superior control. With a Breaking Load (B.L.) of 1000kg and a Maximum Working Load (M.W.L.) of 250kg, it promises reliability, flexibility, and ease of use for sailors of all levels.
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€ 83,20
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF51500 Series 50 All Purpose Block Fiddle is designed for top-tier performance and reliability. With a self-lubricating Acetal polymer sheave, it ensures smooth operation and long-lasting durability. Equipped with a Captive Lock universal head and slotted pin shackle, it prevents fouled lines, offering seamless use. With a breaking load of 1500 kg and a maximum working load of 750 kg, this lightweight block can accommodate ropes up to 10 mm in diameter, making it perfect for a wide range of sailing needs.
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€ 56,36
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF41510 Series 40 All Purpose Block Fiddle with Becket offers exceptional performance for sailors seeking strength, reliability, and ease of use. Featuring a self-lubricating Acetal polymer sheave, a Captive Lock universal head, and a slotted pin shackle, this block ensures smooth operation and minimal maintenance. With a breaking load of 1000 kg and a maximum working load of 400 kg, it’s ideal for a variety of sailing conditions, accommodating ropes up to 8 mm in diameter. Lightweight yet durable, the RF41510 excels in both versatility and reliability.
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€ 71,97
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF51530 Series 50 All Purpose Block Fiddle with Becket and Cam Cleat is a durable and versatile sailing accessory engineered for high performance. Featuring a self-lubricating Acetal polymer sheave, Captive Lock universal head, and a multi-position cleat arm, it ensures smooth operation and low maintenance. With a breaking load of 1500 kg and a maximum working load of 700 kg, this block is perfect for various sailing conditions. Weighing just 318 grams, the RF51530 combines strength, reliability, and ease of use for both professional and recreational sailors.
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€ 128,06
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1-2 weeks delivery time Price incl. 19% VAT The RF45501 and RF55501 Ronstan Series 40 Ball Bearing Orbit Blocks with Fiddle and Dyneema Link Head offer superior performance with ultra-lightweight designs, low-friction 2-stage Orbital ball bearing systems, and high load capacities. These blocks are versatile, easily converted to a becket version, and perfect for sailors seeking efficiency, reliability, and ease of installation.
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€ 47,17
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan Series 40 Ball Bearing Orbit Block Fiddle with Becket and Dyneema Link Head combines lightweight functionality with durability. Featuring a 40mm diameter, it delivers smooth operation via a low-friction 2-stage Orbital ball bearing system, and boasts a maximum working load of 325kg with a breaking load of 700kg. Ideal for various rigging setups, it provides both strength and versatility for any sailing or rigging application.
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€ 53,03
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan Series 40 Ball Bearing Orbit Block Fiddle with Cleat and Dyneema Link Head combines lightweight design with high performance. Featuring a low-friction 2-stage Orbital ball bearing system, adjustable cleats, and a Dyneema link head for versatility, these blocks deliver smooth operation, strength, and reliability. With breaking loads up to 700kg and maximum working loads of 325kg, they are the ideal choice for racing and cruising setups.
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€ 105,51
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1-2 weeks delivery time Price incl. 19% VAT The RF45531 and RF55531 from Ronstan's Series 40 Ball Bearing Orbit Block lineup offer lightweight construction, high strength, and smooth operation. Designed for sailing, these blocks feature a low-friction 2-stage Orbital ball bearing system, ensuring reliable performance even under high loads. With their compact build and integrated cleating system, they are perfect for sailors seeking efficiency and reliability on the water.
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€ 110,28
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF64500 Series 60 Core Block Fiddle offers exceptional versatility and performance with its universal head that can be locked at 0 or 90 degrees or left free to swivel. Designed with reduced friction, it ensures smooth operation and enhanced efficiency. Featuring an integrated becket for lines up to 11.5mm, a breaking load of 2000kg, and a working load limit of 1000kg, this lightweight yet durable block is ideal for various maritime applications.
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€ 156,75
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF64503 Series 60 Core Block Fiddle features a convenient snap shackle attachment with 360-degree rotation and side-to-side articulation, ensuring smooth and controlled sailing. With outstanding dynamic performance, high static load capabilities, and reduced friction, it offers superior maneuverability. The integrated becket accommodates lines up to 11.5mm, with a breaking load of 2000kg and a maximum working load of 1000kg. Weighing just 405g, this block is a lightweight yet robust solution for any maritime rigging setup.
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€ 224,19
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF64520 Series 60 Core Block Fiddle with Cleat is a versatile sailing component designed to elevate your performance. Equipped with an adjustable cleat, this block offers exceptional dynamic and static load performance. It features a high-performance C-Cleat and fairlead, ensuring secure cleating even under heavy loads. With a breaking load of 2000kg and a maximum working load of 525kg, this block accommodates ropes up to 12mm in diameter and weighs just 490g, making it the ideal solution for various sailing applications.
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€ 250,85
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF187 Series 30 Utility Block Fiddle features a V-jam cleat and tube rivet head, combining efficiency and reliability in one versatile block. Designed with a lightweight yet durable construction, it ensures robust performance without excess weight. With a breaking load of 600kg and a maximum working load of 300kg, it accommodates ropes up to 8mm in diameter. This block provides quick and secure cleating of control lines, making it an ideal choice for sailors looking for reliability and ease of use.
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€ 34,18
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1-2 weeks delivery time Price incl. 19% VAT The Ronstan RF186 Series 30 Utility Block Fiddle is engineered for efficiency and durability, featuring tube rivets for seamless performance on the water. Lightweight yet robust, this block offers reliability in maritime environments, providing an economical and maintenance-free solution for sailors. With a breaking load of 600kg and a maximum working load of 300kg, it accommodates ropes up to 8mm in diameter, all while weighing just 50 grams for versatile, high-performance rigging.
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€ 23,21
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What is the primary function of the Ronstan Fiddle Block in marine applications?
The primary function of the Ronstan Fiddle Block in marine applications is to provide an efficient and low-friction solution for controlling ropes and lines, such as for the cunningham or mainsheet systems. Its bearing system ensures long service life and smooth operation, with an acetal sheave and cheeks designed to minimize rope wear. The block, crafted from polished stainless steel, is a true all-around solution, offering excellent performance in various marine settings.
What type of bearing system is incorporated into the Ronstan Fiddle Block to reduce friction?
The Ronstan Fiddle Block incorporates a sliding acetal bearing system, which provides low friction for smooth operation. This bearing system is part of the Series 60 Core Block™ design, offering a true all-round solution for efficient rope handling. The combination of a strong, low-friction bearing and a polished sheave ensures long-lasting performance and minimal wear.
What technical information should be considered when choosing the right Ronstan product for a specific application?
When choosing the right product for a specific application, it's essential to consider the technical information such as load capacity, bearing system, and material composition. For example, the bearing system can significantly impact friction and efficiency, while features like the cheek and sheave design or the stage 2 rating can determine the block's performance in various conditions. If you need some advice, reviewing product information and considering factors like durability and ease of use will ensure you select the optimal solution for your needs.