Ronstan Series 15 Ball Bearing Utility Block - Double, Loop Head

The Series 15 Ball Bearing Utility Block - Double, Loop Head is meticulously engineered for optimal performance in marine environments. Its lightweight and compact design make it an essential component for various boat rigging and control systems, ensuring smooth and reliable operation even in the most demanding conditions.

Key Features

• Smallest and lightest ball bearing block available, perfect for space-constrained applications
• Precision molded UV-stabilized acetal sheave paired with stainless steel ball bearings for exceptional performance and minimal friction
• Double loop head design with integrated O-ring to effectively separate the running line from head lashing or fixing, enhancing durability and safety

Ideal Applications

• Control lines for dinghies, ensuring smooth maneuverability
• Vangs, cunninghams, and tweakers for precise sail adjustment and control
• Shock cord tensioning systems, providing reliable tension management

Quality Materials

Component	Material
BB Sheaves	UV stabilized acetal
Ball Bearings	Stainless steel
Cheeks	Grade 316 stainless steel

Why Choose the Series 15 Ball Bearing Utility Block?

Designed specifically for the marine and boating industry, the Series 15 Ball Bearing Utility Block offers unmatched durability and performance. Its corrosion-resistant materials and precision engineering ensure longevity and reliability, making it a trusted choice for sailors and boating enthusiasts alike.

Installation and Maintenance

Installing the Series 15 Ball Bearing Utility Block is straightforward, with clear integration into existing rigging systems. Regular maintenance involves periodic cleaning and inspection of the ball bearings and sheaves to maintain optimal performance and extend the product’s lifespan.

Customer Testimonials

"Since upgrading to the Series 15 Utility Block, the control lines on my dinghy have never been smoother. Highly recommended for any serious boater!" – Jamie L.

"Exceptional quality and performance. These utility blocks have significantly improved the efficiency of my vang system." – Chris M.

Orders of physical products placed by 3 PM EST M-F typically ships the same day, if all requested items are in stock. Weekend orders will typically ship on Monday.

Shipping takes 2-7 days.

We currently ship to the Contiguous 48 States.

Life of Sailing merch is custom made for the customer after an order is placed. Total turnaround is typically 7-14 days from order to doorstep.