Sail Care is proud to offer this great and innovative line of 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 have large diameter sheaves. The sheaves run on twin races of precision molded Delrin ball bearings for minimum friction. Delrin cheeks, sheaves and ball bearings. Load straps are made from AISI 316 SS.
Ball Bearing Blocks 12.70
Single block spec: Sheave size 2 1/4″, Max. line size 7/16″, Overall height 4 1/4″,
Weight 122gr or 4.30oz, Breaking load 1,000kg or 2,200lbs.
Max. working load 280kg or 610lbs.
| PART NUMBER | DESCRIPTION | PRICE |
|---|---|---|
| 12.70 | Single | $21.00 |
| 12.71 | Single w/becket | $23.65 |
| 12.73 | Double w/becket | $43.75 |
| 12.74 | Triple | $62.15 |
| 12.75 | Triple w/becket | $64.90 |
| 12.76 | Single cheek block (Holes 5/32″ – 3/16″) | $18.65 |
| 29.30 | Stainless steel snap shackle for assemble of multi part system 12.70 – 12.71 | $19.25 |
NOTE: Blocks 12.70 & 12.71 have a universal 3-way head. See diagram below.
- Shackle in line
- Remove the 2 pins
- Turn 45 degrees
- Insert the pins (Across)
- Remove the pins (Swivel)
Parts needed to attach a block to a deck plate with spring & washer.
| PART NUMBER | DESCRIPTION | PRICE |
|---|---|---|
| 24.23 | Spring | $2.25 |
| 24.26 | Washer | $2.25 |
| 35.14 | Round eye deck plate | $7.25 |
