7/16″ Ball Bearing Blocks S.S. Ball Bearings & Cover Plates by Viadana

Sail Care is proud to offer this great and innovative line of 7/16″ ball bearing blocks and other sailboat hardware from Viadana. Since 1961 they have been deeply involved in research, design, manufacturing, and marketing of top quality innovative hardware for sailors and their boats. 

These ball bearing blocks are strengthened by using SS balls working between
two SS covers to share the load in a perfectly balanced way. Even under
strong stress for long periods the SS balls maintain their shape and
balance against the covers. Extremely smooth and tough!

Ball Bearing Blocks 91.51

S.S. Ball Bearings & Cover Plates

Single block spec: Sheave size 2 1/4″, Max. line size 7/16″, Overall height 4 7/8″
Weight 172gr or 6.07lbs, Breaking load 1,450kg or 3,190lbs,
Max. working load 580kg or 1,270lbs.

PART NUMBER DESCRIPTION PRICE
91.51Single$25.50
91.52Single w/becket$27.75
91.53Fiddle$41.00
91.54Fiddle w/becket$43.50
91.55Single w/becket & ball bearing cam cleat$58.40
91.56Fiddle w/ball bearing cam cleat$71.65
91.57Fiddle w/becket & ball bearing cam cleat$74.00
91.59Double$55.00
91.60Double w/becket$58.00
91.61Triple$66.00
91.62Triple w/becket$83.00
91.63Single cheek block (Hole 3/16″)$9.25
24.24Spring$2.25
35.14Round eye deck plate$7.25
29.31Snap shackle$20.15
54.10Swivel to attach 91.55 to double or triple blocks for increased purchase$7.40
54.15Rigging Swivel Connection$10.30

Note: All the blocks with additional bracketed numbers are available without ball bearings.
Blocks 91.51 thru 91.57 come with a Universal – 3 way head.

Universal 3-way head diagram

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