Schaefer's 12 Series Blocks contain powerful 4" diameter sheaves to handle the loads generated by
large "offshore" yachts. Highly polished Stainless Steel cheeks are reinforced with Stainless Steel V-Straps for
strength and durability under load.
Precision machined Aluminum sheaves are scored for line or wire and feature our self-contained Universal Circuit
package with the Nomex™/Teflon™ composite bearing and twin bearing races for maximum thrust load capacity.
Powerful, oversized sheaves and Schaefer's distinctive qualities ensure that your get the lasting quality you need.
Cheeks are constructed of tumbled and polished Stainless Steel or Hardcoat Anodized Aluminum. Sheaves are computer
machined Aluminum Ball Bearing "UC" sheave for line or wire running using our Nomex™/Teflon™ Bearing.
Schaefer 12 Series Blocks
We at Mauri Pro Sailing are fully committed to be your Schaefer 12 Series Blocks specialist not only providing the sailing community with a comprehensive and easy to use web site but with all the appropriate technical information that you might need to select your sailboat hardware and equipment. If you need any assistance selecting the appropriate Schaefer 12 Series Blocks
please contact us. Our crew is ready to help!