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| Efficiency
ratings of end terminations |
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This page lists several types of end
terminations used for overhead lifting applications.
All efficiency ratings are based on the difference between the actual breaking
strength of a rope and the attained breaking strength with that specific
fittings. The only fitting which will attain a 100% efficiency are spelter
sockets; provided they are properly attached. |
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ALL other fittings are swaged or clamped
onto the rope. The swaging or clamping process compresses the rope to varying
degrees causing a slight loss of strength. Some publications refer to '100%'
efficiency with swaged sockets. Bear in mind, that most wire ropes have
an actual breaking strength up to approximately 5%-15% HIGHER
than the breaking strength listed in catalogue tables. With other words:
a fitting having an efficiency rating of 90% may very well develop 100%
of the rope's CATALOGUE breaking strength because the rope's
ACTUAL breaking may very well be 5%-15% higher. |
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(1) Use only with 6-strand
wire rope.
(2) ONLY when applied with EN 14311 sleeves and fabrication method.
(3) Fabrication efficiency depends on fitting dimensions. Ask for information
on UNI-LOC™ Assemblies. |
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