Viadana Ball Bearing Block, 57mm Sheave
- SKU:
- VIA-12.70
- Width:
- 2.25 (in)
- Height:
- 4.50 (in)
- Depth:
- 1.00 (in)
Description
Ball bearing blocks with large diameter sheaves.
The sheaves run on twin races of precision
moulded Delrin® ball bearings for minimum
friction Delrin® cheeks, sheave and ball bearings.
Stainless steel (AISI 316) load straps.
These blocks can also be linked as shown below (purchase of two blocks is necessary), to be used as a traveler block like our smaller offering the VIA11.76
"A traveler block is used to run a sheet through a block that itself runs on a rope horse."
Comes with manufacturer two-year warranty
Sheave size - 57mm / 2-1/4"
Max line size - 12mm / 1/2"
Overall Height - 109mm / 4 1/4"
Weight - 45 grams / 4.3 ounces
Breaking Load - 1,000 kg / 2,204 lbs
Max. Working Load - 280 kg / 617 lbs
Related Products
Viadana Double Ball Bearing Block 38mm
$33.99
These ball bearing blocks handling lines up to3/8 IN., and are very compact. Used on smallboats, cruisers and keel boats for vang, spinnakerand control line applications. Delrin® cheeks,sheave and...
Viadana Single Ball Bearing Block 38mm
$12.99
These ball bearing blocks handling lines up to3/8 IN., and are very compact. Used on smallboats, cruisers and keel boats for vang, spinnakerand control line applications. Delrin® cheeks,sheave and...
Viadana Single Ball Bearing Cheek Block 28mm
$12.59
Comes with manufacturer two-year warranty
Sheave size - 28mm / 1 1/16"
Max line size - 8mm / 5/16"
Overall Height - 51mm / 2"
Weight - 24 grams / .84 ounces
Breaking Load - 750 kg / 1,653 lbs
Max...
1/4 Viadana Single Ball Bearing Block
$7.99
Comes with manufacturer two-year warranty
Sheave size - 22mm / 7/8"
Max line size - 6mm / 1/4"
Overall Height - 43mm / 1 3/4"
Weight - 17 grams / .60 ounces
Breaking Load - 700 kg / 1,543 lbs
Max...
5/16" Viadana Linked Ball Bearing Block
$18.99
A traveler block is used to run a sheet through a block that itself runs on a rope horse.
Since 1961, Viadana has produced and supplied sailing outfits, while offering a long history of...
5/16" Viadana Double Ball Bearing Block
$24.99
Comes with manufacturer two-year warranty
Sheave size - 28mm / 1 1/16"
Max line size - 8mm / 5/16"
Overall Height - 51mm / 2"
Weight - 48 grams / 1.68 ounces
Breaking Load - 1,050 kg / 2,314 lbs
Max...
1/4" Viadana Single Ball Bearing Cheek Block
$10.99
Comes with manufacturer two-year warranty
Sheave size - 22mm / 7/8"
Max line size - 6mm / 1/4"
Overall Height - 43mm / 1 3/4"
Weight - 17 grams / .60 ounces
Breaking Load - 700 kg / 1,543 lbs
Max...