Schaefer 3 series Blocks

Schaefer’s 3 Series Blocks offer strong, high quality metal construction built to take the punishment associated with running rigging mounted on the deck or spars. Excellent for use on small cruisers, day sailors and high-performance racing dinghies. 3 Series Blocks use brilliant stainless steel or tough, hardcoat anodized aluminum cheeks with UV protected Delrin™ sheaves to withstand the elements and potential mishaps far longer than other brands with standard plastic cheeks and sheaves.


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Common Specs: Sheave Diam: 1-7/16" (37mm) - Sheave Width: 9/16" (14mm) - Max Line Diam: 7/16" (11mm) - Pin Dian: 3/16" - SWL Block: 1000 lbs (410 kg) - SWL Ball Bearing: 650 lbs (294 kg)