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PH: 216-241-0333
FAX: 216-241-3426
TOLL FREE: 800-892-8012
1285 Old River Road
Cleveland, Ohio 44113 |
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method
of reeving manila and wire rope blocks:
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METHOD
OF REEVING TACKLE BLOCKS
vary with the application and purpose for which
they are to be employed. Especially on Heavy
Lift Cargo Booms, Cranes, etc. where Blocks,
with 4 Sheves or more are required, in which
case a number of Lead Blocks have to be considered.
Our Engineering Department will be glad to consult
with you on this matter.
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METHOD
OF FIGURING "PARTS OF LINE"
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L
= Load Lifted in pounds
P = Line
Pull in pounds
E = Efficiency Factor |
To
figure "Parts
of Line" required
when Load Lifted "L", and Line Pull "P" are
known.
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EXAMPLE:
32,000
lbs. (Load Lifted "L") |
=
5.3 |
|
6,000
lbs. (Line Pull "P")
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"E" factor of
5.3 in table
indicates 6 "Parts of
Line" required
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|
Parts
of Lines |
"E" Factor
Brass Sheave |
"E" Factor
Better Bearing |
| 1 |
0.96 |
0.96 |
| 2 |
1.05 |
1.9 |
| 3 |
2.0 |
2.9 |
| 4 |
3.6 |
3.5 |
| 5 |
4.4 |
4.7 |
| 6 |
5.2 |
5.8 |
| 7 |
5.9 |
6.5 |
| 8 |
6.6 |
7.3 |
| 9 |
7.3 |
8.2 |
| 10 |
7.9 |
9.0 |
| 11 |
8.5 |
9.8 |
| 12 |
9.1 |
10.6 |
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Centrally Located In
Cleveland Flats
1285 Old River
Road
Cleveland, Ohio 44113
Store Hours:
Monday Thru Friday
7:30AM – 5:00PM
Saturday
8:00AM – 4:30PM
216-241-0333
|
HOW-TO GUIDES
