Schaefer's Blocks rely on a variety of sheaves designs and scorings. Schaefer sheaves are design to be compatible with Schaefer products. There is a risk of incompatibility or failure when using Schaefer sheaves in blocks manufactued by anyone other than Schaefer Marine.
Delrin Sheave with CJ Bearing and Washers; Delrin™ Sheaves are injected molded with UV inhibitors and monitored molding cycles lending to a strong, UV resistant product. These sheaves offer durable, lasting service for all line applications.
Part Number: 62-031
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best you can find. If within 30 days you find a better price,
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