Let’s Talk About Ronstan Series 20 Ball Bearing Orbit Block
The Ronstan Series 20 Ball Bearing Orbit Block is a marvel of minimalist engineering from Ronstan, designed for high performance in a ridiculously small and lightweight package. Weighing in at a mere 9 grams, this little block boasts a 250kg (550lb) working load, making it perfect for demanding applications where every gram counts. It promises a solution for ultra-light control line systems and has quickly become a sought-after piece of hardware in the sailing world.
I was searching for a lightweight, low-friction solution for a complex control line setup on my own small sailboat. Traditional blocks were overkill in terms of size and weight, adding unnecessary bulk and inertia to the system. The allure of the Ronstan Series 20 Ball Bearing Orbit Block was its incredibly low weight and compact size, promising to deliver performance without compromise.
Upon unboxing, I was immediately struck by how tiny and feather-light the block truly is. The materials felt robust for their size, and the smooth rotation of the sheave hinted at the quality ball bearing system within. Its sleek black finish and minimalist design added to its appeal.
Compared to larger, more traditional blocks from Harken and Lewmar I had previously considered, the Ronstan Series 20 Ball Bearing Orbit Block stood out due to its extreme weight savings and compact footprint. While the other blocks offered higher load ratings, they were significantly heavier and bulkier, making the Ronstan a more appealing choice for my specific application where weight was a paramount concern. This block offers an elegant solution where others felt like overkill.
My first impression was one of excited skepticism – could something so small and light really deliver the promised performance? The initial handling suggested a well-made and efficient piece of equipment. I was eager to put it to the test and see if it lived up to the hype.
Real-World Testing: Putting Ronstan Series 20 Ball Bearing Orbit Block to the Test
First Use Experience
I first tested the Ronstan Series 20 Ball Bearing Orbit Block as part of a control line system on my 14-foot dinghy, primarily in light to moderate wind conditions on a local lake. The block was used to redirect a control line from the cockpit to the centerboard trunk, a crucial element for adjusting centerboard position while sailing.
The block performed flawlessly, providing smooth and friction-free operation even under load. In slightly wetter conditions, with occasional spray from waves, the block continued to perform without any noticeable degradation in performance. It integrated seamlessly into the system.
The block was exceptionally easy to use, requiring no break-in period or adjustments. Its small size made it unobtrusive, and its lightweight construction minimized any added inertia to the control line. The lashing attachment method was straightforward to implement and provided a secure and reliable connection.
There were no immediate issues or surprises after the first use. The block lived up to its promise of smooth, low-friction performance. It was clear that the design and construction were well-suited for its intended purpose.
Extended Use & Reliability
After several months of consistent use, the Ronstan Series 20 Ball Bearing Orbit Block has held up remarkably well. There are no signs of significant wear and tear. The sheave still spins freely and the ball bearings operate smoothly.
Despite being exposed to saltwater spray and occasional UV exposure, the block shows no signs of corrosion or degradation. The nylon frame and stainless steel hub remain in excellent condition. Regular rinsing with fresh water after use has been sufficient to maintain its performance.
Compared to previous experiences with larger, more complex blocks, the Ronstan Series 20 Ball Bearing Orbit Block has proven to be more reliable and easier to maintain. Its simple design and high-quality materials contribute to its long-term durability. It certainly outperforms my expectations given its size and weight.
Breaking Down the Features of Ronstan Series 20 Ball Bearing Orbit Block
Specifications
- Manufacturer: Ronstan
- Color: Black
- Maximum Working Load: 250kg (550lb). This impressive load rating for such a small block showcases its robust construction.
- Weight: 9 grams. The incredibly low weight is a key selling point, making it ideal for weight-sensitive applications.
- Sheave Material: High compression strength carbon acetal. This material offers a good balance of strength, durability, and low friction.
- Ball Bearing Material: Stainless steel. Stainless steel ball bearings ensure smooth and reliable operation, even in harsh marine environments.
- Frame/Cheeks Material: Nylon. Nylon provides a lightweight and durable frame that is resistant to corrosion and UV damage.
- Lashing Suitability: Up to 4mm (5/32″) lashing. This accommodates a variety of lightweight lashing options.
- Included Lashing: 750mm (30″) x 1.7mm (1/16″) diameter. This provides a ready-to-use lashing solution out of the box.
- Applications: Control lines on dinghies and catamarans up to 5M (16′). This specifies the intended use case, ensuring it’s appropriately sized for these applications.
- Integrated stainless steel hub: To accept lashing attachment and through-sheave becket. Offers versatile and secure attachment options.
These specifications are crucial because they define the block’s capabilities and limitations. The low weight and high load rating are particularly important for performance-oriented sailors who seek to minimize weight aloft. The material choices indicate a focus on durability and corrosion resistance.
Performance & Functionality
The Ronstan Series 20 Ball Bearing Orbit Block excels at its primary function: providing smooth, low-friction redirection of control lines. Its ball bearing system ensures minimal energy loss, allowing for precise and responsive adjustments. It operates exactly as intended.
One notable strength is its ability to handle significant loads relative to its size and weight. A minor weakness might be its relatively small sheave diameter, which could limit its suitability for larger diameter lines, but is perfectly fine for the intended use. It significantly exceeds expectations.
Design & Ergonomics
The block’s minimalist design is both aesthetically pleasing and functionally efficient. The build quality is excellent. The materials feel durable, and the overall construction inspires confidence. The lashing attachment method is simple and secure.
The block is incredibly user-friendly. There is no learning curve associated with its installation or use. It integrates seamlessly into existing control line systems.
Durability & Maintenance
Given its robust construction and high-quality materials, the Ronstan Series 20 Ball Bearing Orbit Block should last for many seasons with proper care. The stainless steel ball bearings and UV-resistant nylon frame contribute to its long-term durability.
Maintenance is minimal, requiring only occasional rinsing with fresh water to remove salt and debris. Its simple design makes it easy to inspect and clean.
Accessories and Customization Options
The block comes with a length of Dyneema lashing for attachment. This is essentially the only accessory provided and necessary. Customization is limited, as the block is designed for a specific purpose and size range.
While there are no direct customization options, the block is compatible with a variety of Dyneema and other lightweight lashing materials from various brands. This allows users to tailor the attachment method to their specific needs and preferences.
Pros and Cons of Ronstan Series 20 Ball Bearing Orbit Block
Pros
- Incredibly lightweight. At only 9 grams, it minimizes added weight and inertia.
- High working load. Capable of handling loads up to 250kg (550lb), despite its small size.
- Smooth, low-friction operation. The ball bearing system ensures efficient and responsive adjustments.
- Durable construction. Made from high-quality materials that are resistant to corrosion and UV damage.
- Easy to install and use. The lashing attachment method is simple and secure.
Cons
- Small sheave diameter may not be suitable for all line sizes.
- Limited customization options.
Who Should Buy Ronstan Series 20 Ball Bearing Orbit Block?
The Ronstan Series 20 Ball Bearing Orbit Block is perfect for sailors of small dinghies and catamarans, especially those focused on performance and weight savings. It’s also ideal for anyone building lightweight control line systems where minimizing weight and friction are critical. Specifically, competitive sailors and those seeking to optimize their boat’s performance will benefit most.
This product might not be the best choice for larger boats with higher load requirements, or for applications where robustness and ease of handling are more important than weight savings. A larger block would be more appropriate in those circumstances.
A must-have accessory is a high-quality Dyneema lashing line for secure attachment. Ensuring the lashing is properly installed and tensioned is also essential for optimal performance.
Conclusion on Ronstan Series 20 Ball Bearing Orbit Block
The Ronstan Series 20 Ball Bearing Orbit Block is a remarkable piece of hardware that delivers exceptional performance in a tiny package. Its incredibly low weight, high working load, and smooth operation make it a standout choice for weight-conscious sailors and anyone seeking to optimize their control line systems.
The price is justified given its performance and high-quality construction. It’s a significant value proposition for those who prioritize weight savings and low friction.
I would wholeheartedly recommend the Ronstan Series 20 Ball Bearing Orbit Block to anyone looking for a lightweight, high-performance block for small boats and control line applications. It is a game-changer in the world of sailing hardware. Upgrade your control lines today and experience the difference!