Ronstan Series 50 Ball Bearing Block - Single Loop Top

The Series 50 Ball Bearing Block - Single Loop Top is engineered specifically for marine and boating applications, offering superior performance and durability in demanding environments. Whether you're outfitting your yacht or upgrading your boat's rigging, this ball bearing block ensures smooth and reliable operation under various load conditions.

Exceptional Performance for Marine Use

Designed with the unique challenges of marine environments in mind, the Series 50 Ball Bearing Block features advanced materials and a robust 2-stage ball bearing system. This combination minimizes friction and maximizes efficiency, allowing for precise control and effortless handling of sails, lines, and other essential rigging components.

Key Features

• 2-Stage Ball Bearing System: Reduces friction for smoother operation and increased efficiency.
• High Load Capacity: Capable of handling both high static and dynamic loads, ensuring reliability even in heavy-duty applications.
• Lightweight Construction: Enhances ease of installation and reduces overall rigging weight without compromising strength.
• Cheek Cut-Outs: Facilitates easy maintenance and bearing replacement, extending the block's service life.

Specifications

Maximum Rope Diameter	1/2 inch
Maximum Working Load (M.W.L.)	1,100 lbs
Sheave Diameter	2 inches
Breaking Load (B.L.)	3,310 lbs
Weight	3.4 oz

Premium Materials for Longevity

• Acetal Ball Bearings: Provide smooth operation and resist wear in harsh marine conditions.
• UV-Stabilized Acetal Sheave: Prevents degradation from sun exposure, ensuring long-term performance.
• Grade 316 Stainless Steel: Corrosion-resistant load strap and head fitting, ideal for saltwater environments.
• Fiber-Reinforced Nylon Cheeks: Impact and UV-resistant, offering added durability and protection for the bearings.

Why Choose the Series 50 Ball Bearing Block?

For boaters and marine enthusiasts seeking reliable and high-performance rigging components, the Series 50 Ball Bearing Block stands out as a top choice. Its combination of advanced materials, thoughtful design, and robust construction make it ideal for enhancing your vessel's functionality and safety.

Installation and Maintenance

Installing the Series 50 Ball Bearing Block is straightforward, thanks to its lightweight design and user-friendly features. The cheek cut-outs allow for easy access to the bearings, simplifying routine maintenance and ensuring your equipment remains in peak condition throughout your maritime adventures.

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.