Schaefer Marine

Schaefer 5 Series Singles & Doubles

Schaefer's 5 series blocks offer small to medium sized racing and cruising yachts an extremely high strength/weight ratio and oversized sheet capacity.

  • Available in Anodized Aluminum or Stainless Steel Cheek design.

  • Available with UV protected Delrin or Delrin Ball Bearing sheaves.

  • Versatile head design features three way, built in locking feature and accepts multiple "universal" adapters for custom mounting.

  • SWL - Stain/Alum 1750 lbs, Ball Bearing 1500 lbs.

  • Sheave diameter - 2"

  • Maximum line diameter - 1/2"

  • Pin diameter - 1/4"

Product Compare (0)
Schaefer 504-05 Single Aluminum Block w/ Universal Head
Schaefer 504-05 Single Aluminum Block w/ Universal Head
$78.71
Single block with anodized aluminum cheeks. Delrin(tm) sheave ensures smooth operation with high ..
Schaefer 504-06 Single Aluminum Block w/ Universal Head and Aluminum Sheave
Schaefer 504-06 Single Aluminum Block w/ Universal Head and Aluminum Sheave
$157.53
Single block with anodized aluminum cheeks and aluminum sheave. Aluminum sheave runs on nomex(tm)..
Schaefer 504-10 Cheek Block - Aluminum Sheave
Schaefer 504-10 Cheek Block - Aluminum Sheave
$148.42
5 Series Cheek Block with anodized Aluminum cheek and aluminum sheave. Aluminum sheave runs on nom..
Schaefer 504-11 Aluminum Cheek Block - Delrin Sheave
Schaefer 504-11 Aluminum Cheek Block - Delrin Sheave
$85.80
5 Series Cheek Block with anodized Aluminum cheek. Delrin(tm) sheave ensures smooth operation and ..
Schaefer 504-15 Single Block w/ Becket and Universal Head
Schaefer 504-15 Single Block w/ Becket and Universal Head
$103.88
Single block with anodized aluminum cheeks and becket. Becket may be easily removed for use with..
Schaefer 504-25 Double Aluminum Block w/ Universal Head
Schaefer 504-25 Double Aluminum Block w/ Universal Head
$176.74
Double sheave block with anodized aluminum cheeks. Works with 504-35, 504-75, 504-76 for a 4:1 pu..
Schaefer 504-28 Double Cheek Block - Delrin Sheave
Schaefer 504-28 Double Cheek Block - Delrin Sheave
$155.48
Item Alum., Sheave Dia. 2" (51 mm), Max Line 7/16" (11 m), L 3-5/8" (92 mm), W 2-7/32" (57 mm), H ..
Schaefer 504-35 Double Aluminum Block w/ Becket & Universal Head
Schaefer 504-35 Double Aluminum Block w/ Becket & Universal Head
$200.25
Double block with becket and anodized aluminum cheeks. Works with 504-35 for a 4:1 purchase. Del..
Schaefer 505-05 Single Stainless Block w/ Universal Head
Schaefer 505-05 Single Stainless Block w/ Universal Head
$83.54
Single block with stainless steel cheeks. Delrin(tm) sheave ensures smooth operation and high saf..
Schaefer 505-15 Single Block w/ Universal Head and Becket
Schaefer 505-15 Single Block w/ Universal Head and Becket
$132.20
Single block with becket and stainless steel sheaves. Delrin(tm) sheave ensures smooth operation ..
Schaefer 505-25 Double Stainless Block w/ Universal Head
Schaefer 505-25 Double Stainless Block w/ Universal Head
$212.79
Double block with Stainless steel cheeks. Works with 505-35, 505-75, 505-76 for a 4:1 purchase. ..
Schaefer 505-35 Double Aluminum Block w/ Becket and Universal Head
Schaefer 505-35 Double Aluminum Block w/ Becket and Universal Head
$221.85
Double block with Stainless Steel cheeks and becket. Works with 505-25 or 505-45 for a 4:1 purcha..
Schaefer 506-05 Single Ball Bearing Block w/ Universal Head
Schaefer 506-05 Single Ball Bearing Block w/ Universal Head
$99.97
Single block with aluminum cheeks and ball bearing sheave. Delrin(tm) ball bearing sheave ensures..
Schaefer 506-15 Single Ball Bearing Block w/ Becket - Universal Head
Schaefer 506-15 Single Ball Bearing Block w/ Becket - Universal Head
$133.20
Single block with aluminum cheeks, ball bearing sheave and becket. Delrin(tm) ball bearing sheave..
Schaefer Double, Universal Head, Becket, Ball Bear
Schaefer Double, Universal Head, Becket, Ball Bear
$230.87
Double ball bearing block with aluminum cheeks and becket. Works with 506-25 or 506-45 for a 4:1 ..
Schaefer 504-05 Single Aluminum Block w/ Universal Head
Schaefer 504-05 Single Aluminum Block w/ Universal Head
sch50405
$78.71
Schaefer 504-06 Single Aluminum Block w/ Universal Head and Aluminum Sheave
Schaefer 504-06 Single Aluminum Block w/ Universal Head and Aluminum Sheave
sch50406
$157.53
Schaefer 504-10 Cheek Block - Aluminum Sheave
Schaefer 504-10 Cheek Block - Aluminum Sheave
sch50410
$148.42
Schaefer 504-11 Aluminum Cheek Block - Delrin Sheave
Schaefer 504-11 Aluminum Cheek Block - Delrin Sheave
sch50411
$85.80
Schaefer 504-15 Single Block w/ Becket and Universal Head
Schaefer 504-15 Single Block w/ Becket and Universal Head
sch50415
$103.88
Schaefer 504-25 Double Aluminum Block w/ Universal Head
Schaefer 504-25 Double Aluminum Block w/ Universal Head
sch50425
$176.74
Schaefer 504-28 Double Cheek Block - Delrin Sheave
Schaefer 504-28 Double Cheek Block - Delrin Sheave
sch50428
$155.48
Schaefer 504-35 Double Aluminum Block w/ Becket & Universal Head
Schaefer 504-35 Double Aluminum Block w/ Becket & Universal Head
sch50435
$200.25
Schaefer 505-05 Single Stainless Block w/ Universal Head
Schaefer 505-05 Single Stainless Block w/ Universal Head
sch50505
$83.54
Schaefer 505-15 Single Block w/ Universal Head and Becket
Schaefer 505-15 Single Block w/ Universal Head and Becket
sch50515
$132.20
Schaefer 505-25 Double Stainless Block w/ Universal Head
Schaefer 505-25 Double Stainless Block w/ Universal Head
sch50525
$212.79
Schaefer 505-35 Double Aluminum Block w/ Becket and Universal Head
Schaefer 505-35 Double Aluminum Block w/ Becket and Universal Head
sch50535
$221.85
Schaefer 506-05 Single Ball Bearing Block w/ Universal Head
Schaefer 506-05 Single Ball Bearing Block w/ Universal Head
sch50605
$99.97
Schaefer 506-15 Single Ball Bearing Block w/ Becket - Universal Head
Schaefer 506-15 Single Ball Bearing Block w/ Becket - Universal Head
sch50615
$133.20
Schaefer Double, Universal Head, Becket, Ball Bear
Schaefer Double, Universal Head, Becket, Ball Bear
sch50635
$230.87
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