Schaefer Series 3 Flat Base/Alum Cheek/Delrin Sheave

The Schaefer Series 3 Flat Base with Aluminum Cheek and Delrin Sheave is a precision-engineered block designed for effective line management in various applications, including sailing and boating. This pulley system is essential for anyone operating rigging where smooth, efficient line movement is crucial for performance and safety.

Constructed with a flat base for stable mounting, the aluminum cheek provides a balance of strength and lightweight durability. The Delrin sheave, a high-performance polymer, ensures smooth, low-friction line movement, making it suitable for repeated heavy use without binding or deterioration.

Ideal for mainsheet, jib sheet, and control line systems, this block is relied upon by various users, including anglers and racers, for consistent performance. Its compact dimensions of 2 x 1 x 4 inches make it suitable for tight spaces on boats and other applications.