Schaefer Marine 5 Series Single Aluminum Block, 51mm Sheave, 1750 lbs SWL

Elevate your rigging with the Schaefer Marine 5 Series Single Aluminum Block. Engineered for medium-sized cruising and racing yachts, this robust block delivers exceptional strength and smooth operation for critical control lines and sail management. Its high strength-to-weight ratio ensures reliable performance without adding unnecessary bulk to your vessel. Upgrade your sailboat's efficiency and control with Schaefer Marine's trusted quality today.

Key Benefits & Specifications:

• Durable Anodized Aluminum Cheeks: Provides enhanced resistance to corrosion, UV, and wear, ensuring long-term reliability in harsh marine environments.
• Smooth Delrin™ Sheave: Ensures exceptionally low-friction operation, reducing line wear and allowing for efficient trimming and control under load.
• Versatile 3-Way Swivel Head: Can be set to swivel 360° for optimal line alignment or locked into place with a set screw to prevent unwanted twisting and tangling.
• High Safe Working Load (SWL): Rated for an impressive 1750 lbs (795 kg), providing confidence for demanding mainsheet, halyard, and genoa applications.
• Optimized for Line Sizes: Designed to accommodate lines up to 7/16 inches (11mm), making it suitable for a wide range of rigging setups.
• Lightweight and Compact: Weighing just 5 oz (142g) with a 2" (51mm) sheave diameter, 15/16" (24mm) thickness, 2 1/8" (54mm) width, and 4 13/32" (112mm) length for easy integration into your existing system.

Recommended Applications: Ideal for use in mainsheet systems, halyard leads, and genoa leads on yachts up to 28 feet, as well as for control lines on vessels up to 36 feet.