SeaSure General Purpose Block

The 19mm carbon fiber sheave block is a premium choice for marine enthusiasts and professional boaters seeking reliable and high-performance rigging solutions. Designed specifically for abrasive ropes and demanding high-load applications, this sheave block ensures smooth operation and longevity even in the harshest maritime environments.

Durable Construction

Constructed with a robust carbon fiber sheave, this block offers an excellent strength-to-weight ratio, making it both lightweight and exceptionally strong. The marine-grade 316 stainless steel outer cage provides outstanding resistance to corrosion, ensuring the sheave block withstands the corrosive effects of saltwater and constant exposure to the elements.

Advanced Plain Bearing System

Featuring a plain bearing design, the 19mm sheave block is optimized for higher load usage. This bearing system reduces friction and wear, enhancing the overall efficiency and lifespan of the block. The hollow stainless steel rivet through the center of the sheave ensures precise alignment and structural integrity during operation.

Versatile Marine Applications

Perfect for a wide range of boating and marine applications, this sheave block is essential for:

• Control lines management
• Halyards for sail control
• Outhauls for sail trimming
• Furling systems for sails and dodgers
• Heavy-duty rigging setups

Product Specifications

Specification	Details
Sheave Diameter	19mm
Weight	10 g
Breaking Load	400kg
Material	Carbon Fiber Sheave with 316 Stainless Steel Outer Cage

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.