Assumes no friction loss
| |
1 PART
OF
LINE |
2 PARTS
OF
LINE |
2 PARTS
OF
LINE |
3 PARTS
OF
LINE |
 |
| Required Line Pull (LBS.) |
|
|
|
|
| Total Block Load |
| Upper Block (LBS.) |
|
|
|
|
| Lower Block (LBS.) |
|
|
|
|
|
Working Load Limit for Crosby Blocks indicates the maximum load that should be
exerted on the block and its connecting fitting. A single sheave block used to
change load line direction can be subjected to total loads greatly different
from the weight being lifted or pulled.
IMPORTANT
THESE CALCULATORS ARE MATHEMATICAL TOOLS ONLY. ALL
CALCULATIONS AND DECISIONS MUST BE THE RESPONSIBILITY OF
A QUALIFIED PERSON. |