Description

Like the 5 Series blocks, but with Schaefer’s ball-bearing sheave. Curved ball races allow Schaefer ball-bearing blocks to take higher loads than other similarly sized blocks.

5 Series blocks offer small to medium-sized cruising and racing yachts an extremely high strength/weight ratio resulting in a highly refined and reliable block. The versatile universal head design has a three-way built-in locking feature and accepts Schaefer “universal” adapters for custom mounting.
5 series blocks are offered with Aluminum cheeks and plain bearing sheaves (504 series), Stainless Steel cheeks and plain bearing sheaves (505 series), and Aluminum cheeks and Delrin ™ ball bearing sheaves (506 series).

Special Order Only