![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/608x608/products/12628/15094/74715XL__85663.1715742698.jpg?c=1 "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/1500x1500/products/12628/15094/74715XL__85663.1715742698.jpg?c=1&imbypass=on "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/1500x1500/products/12628/15095/74715BXL__52997.1715742698.jpg?c=1&imbypass=on "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/100x100/products/12628/15094/74715XL__85663.1715742698.jpg?c=1 "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
![Schaefer Single Aluminum Block - 51mm Sheave [504-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/100x100/products/12628/15095/74715BXL__52997.1715742698.jpg?c=1 "Schaefer Single Aluminum Block - 51mm Sheave [504-05]")
![Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12634/15106/74724XL__93941.1715742713.jpg?c=1 "Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]")
Schaefer Single Stainless Steel Block - 51mm Sheave [505-05]
Schaefer Marine
DEAN-74724
$76.99
RRP:
$99.20
Single Stainless Steel Block - 51mm SheaveSingle block with stainless steel cheeks. Delrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2"...
![Schaefer Single Aluminum Block - 60mm Sheave [704-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12642/15126/74737XL__78631.1715742735.jpg?c=1 "Schaefer Single Aluminum Block - 60mm Sheave [704-05]")
Schaefer Single Aluminum Block - 60mm Sheave [704-05]
Schaefer Marine
DEAN-74737
$99.99
RRP:
$129.40
Single Aluminum Block - 60mm SheaveDelrin™ sheave ensures smooth operation and a high safe working load. Swivel head may be locked in place to eliminate twisting. Specifications:Sheave Diameter...
![Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12645/15129/74741XL__33816.1715742742.jpg?c=1 "Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]")
Schaefer Single Stainless Steel Block - 60mm Sheave [705-05]
Schaefer Marine
DEAN-74741
$129.99
RRP:
$168.70
Single Stainless Steel Block - 60mm SheaveDelrin™ sheave ensures low-friction and high safe working load. Swivel head may be locked in place to eliminate line twist. Specifications:Sheave Dia...
![Schaefer Single Ball Bearing Block [506-05]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12637/15112/74731XL__24626.1715742720.jpg?c=1 "Schaefer Single Ball Bearing Block [506-05]")
Schaefer Single Ball Bearing Block [506-05]
Schaefer Marine
DEAN-74731
$91.99
RRP:
$118.75
Single Ball Bearing BlockSingle block with aluminum cheeks and ball bearing sheave. Delrin™ ball bearing sheave ensures low-friction operation. Swivel head may be locked in place to avoid twist...
![Harken Midrange Single w\/Aluminum Sheave Block [1542]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/17867/22191/86871XL__27408.1715754938.jpg?c=1 "Harken Midrange Single w\/Aluminum Sheave Block [1542]")
Harken Midrange Single w/Aluminum Sheave Block [1542]
Harken
DEAN-86871
$187.95
RRP:
$213.70
Midrange Single with Aluminum Sheave BlockMidrange blocks’ robust construction makes them ideal to handle the high loads found on medium and large offshore boats. Sheave runs exclusively on a ball...
![Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave [504-11]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12629/15096/74716XL__94388.1715742700.jpg?c=1 "Schaefer Series 5 Flat Base\/Alum Cheek\/Delrin Sheave [504-11]")
Schaefer Series 5 Flat Base/Alum Cheek/Delrin Sheave [504-11]
Schaefer Marine
DEAN-74716
$78.99
RRP:
$101.90
Series 5 Flat Base/Alum Cheek/Delrin SheaveDelrin™ sheave ensures smooth operation and high safe working load. Stainless steel base distributes loads to a large surface area...
![Schaefer Stand-Up Swivel w\/Aluminum Cheeks [504-62]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12630/15097/74717XL__22097.1715742702.jpg?c=1 "Schaefer Stand-Up Swivel w\/Aluminum Cheeks [504-62]")
Schaefer Stand-Up Swivel w/Aluminum Cheeks [504-62]
Schaefer Marine
DEAN-74717
$163.99
RRP:
$212.90
Stand-Up Swivel with Aluminum CheeksDelrin™ sheave ensures smooth operation and high safe working load. Specifications:Sheave Dia. 2" (51 mm)Max Line 7/16" (11 mm)Diameter includes urethane...
![Schaefer 2-3\/8" Aluminum Sheave [62-070-BW]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/18671/23285/89183XL__87072.1715756800.jpg?c=1 "Schaefer 2-3\/8\" Aluminum Sheave [62-070-BW]")
Schaefer 2-3/8" Aluminum Sheave [62-070-BW]
Schaefer Marine
DEAN-89183
$84.99
RRP:
$113.05
2-3/8" Aluminum SheaveFeatures:Material: AluminumMax Line 5/8" (16 mm)Max Wire 3/16" (5 mm)Outside Diameter 2-3/8" (60 mm)Inside Diameter 1/2" (13 mm)Width 3/4" (19 mm)
![Schaefer Stand-Up Swivel - Aluminum Block [704-62]](https://cdn11.bigcommerce.com/s-hbdnd2os5x/images/stencil/590x590/products/12644/15128/74739XL__04185.1715742740.jpg?c=1 "Schaefer Stand-Up Swivel - Aluminum Block [704-62]")
Schaefer Stand-Up Swivel - Aluminum Block [704-62]
Schaefer Marine
DEAN-74739
$197.99
RRP:
$256.25
Stand-Up Swivel - Aluminum BlockSpecifications:Sheave Dia. 2-2/8" (60 mm)Max Line 1/2" (13 mm)Diameter includes urethane base 3-3/8" (86 mm)Height 4-25/32" (120 mm)H2 2-15/32" (63 mm)Fastener Size...
