Schaefer Marine Series 3 Block, 1-7/16" Sheave, 1000 lbs SWL

Ensure reliable and smooth line handling with the Schaefer Marine Series 3 Flat Base/Alum Cheek/Delrin Sheave. Engineered for robust marine applications, this block is ideal for leading sheets, halyards, reefing gear, and other control lines across spars or on deck. Its design ensures efficient operation and superior load distribution, making it a critical upgrade for any serious sailor. Experience the precision and durability Schaefer Marine delivers.

Key Features & Benefits:

• Delrin™ Plain Bearing Sheave: Provides exceptionally smooth, low-friction operation for efficient line management and reduced wear.
• Durable Stainless Steel Base: Designed to distribute loads over a larger surface area, significantly enhancing the block's structural integrity and longevity in harsh marine environments.
• Anodized Aluminum Cheeks: Offers additional strength and corrosion resistance while maintaining a lightweight profile.
• High Safe Working Load (SWL): Capable of handling up to 1000 lbs (450 kg), ensuring reliable performance under significant strain.
• Optimized Sheave Diameter: A 1-7/16 inch (37 mm) sheave accommodates lines up to 7/16 inch (11 mm), providing versatile rigging options.
• Compact & Lightweight Design: Measuring 2-7/8" (73 mm) in length, 1-3/4" (44 mm) in width, and 3/4" (19 mm) in height, with an aluminum weight of just 2.5 oz (71 g), it integrates seamlessly without adding unnecessary bulk.
• Secure Mounting: Features (4) #10- RH (5 mm) fasteners with a 2-3/8" (60 mm) center-to-center spacing for a firm and stable installation.

Recommended Applications: Perfect for use on sailboats as a cheek block, leading blocks, or for reefing systems and various control line applications on deck or spars.