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Measuring
Wire Rope
Design specification for wire rope are such that the diameter is slightly
larger than the nominal size as shown in the catalogue. The allowable tolerances
are:
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| ≤ 1/8" |
-0 / +8% |
| > 1/8" ≤ 3/16" |
-0 / +7% |
| > 3/16" ≤ 5/16" |
-0 / +6% |
| > 5/16" |
-0 / +5% |
Python® wire rope is produced with an
allowable oversize tolerance of only 4%, all others have an allowable
5% oversize tolerance.
When put into service the wire rope diameter slightly decreases when
first loaded. A further reduction in wire rope diameter indicates
wear, abrasion, or core deterioration. |
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Wire Rope
Lay Direction
Be sure to use the correct rope lay direction for the drum. This applies
to smooth, as well as to grooved drums.
In some applications it may be advisable to select the rope lay direction
according to the most frequently used drums layers. If the first rope layer
is used as a ‘guide layer’ only, it is advisable to select the
rope lay direction according to the second layer.
If you are in doubt about this issue, give us a call and we will be happy
to assist you. |
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Overwind from
left to right:
Use Right Hand Rope |
Underwind from
right to left: Use Right Hand Rope |
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Overwind from
right to left:
Use Left Hand Rope |
Underwind from
left to right: Use Left Hand Rope |
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Left Hand Grooved:
Use Right Hand Rope |
Right Hand Grooved:
Use Left Hand Rope |
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