Schaefer 12 series Blocks

Schaefer 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 you get the lasting quality you need.


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  • schaefer 120-55-UC

    Schaefer 12 Series-4″ Fiddle Becket, UC

    $1,780.65
    : $2,176.35 (18 %)

    12 Series Blocks contain powerful 4″ (102mm) 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 feature our self-contained Universal Circuit package with the Nomex/Teflon composite bearing and twin bearing races for maximum…

  • schaefer 120-45-UC

    Schaefer 12 Series-4″ Fiddle, UC

    $1,561.50
    : $1,908.50 (18 %)

    12 Series Blocks contain powerful 4″ (102mm) 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 feature our self-contained Universal Circuit package with the Nomex/Teflon composite bearing and twin bearing races for maximum…

  • schaefer 120-15-uc

    Schaefer 12 Series-4″ Single Becket, UC

    $1,197.41
    : $1,463.50 (18 %)

    12 Series Blocks contain powerful 4″ (102mm) 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 feature our self-contained Universal Circuit package with the Nomex/Teflon composite bearing and twin bearing races for maximum…

  • Schaefer 12 Series-4" Single, UC Sheave

    Schaefer 12 Series-4″ Single, UC Sheave

    $1,026.32
    : $1,254.00 (18 %)

    12 Series Blocks contain powerful 4″ (102mm) 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 feature our self-contained Universal Circuit package with the Nomex/Teflon composite bearing and twin bearing races for maximum…

Cheeks of tumbled and Polished Stainless Steel provide an elegant and extremely strong block. machined Aluminum sheaves run on Schaefer's Nomex™/Teflon™ bearing and utilize Delrin™ Ball Bearings for low friction loads. Forged Stainless Steel Shackles on Universal Heads provide superior strength and allow for various mounting applications. The 5000 lb. SWL continues the legendary of Shaefer Marine Products.
The Rigging Company
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