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A wire rope clip, sometimes called a u-bolt clamp or u-bolt clip is used to clamp the loose
Wire rope clips are widely used for making end terminations.
Clips are available in two basic designs; the U-Bolt and fist grip. The efficiency of both types is the same.
When using U-Bolt clips, extreme care must be exercised to make certain that they are attached correctly; i.e., the U-Bolt must be applied so that the “U” section is in contact with the dead end of the rope.
Also, the tightening and retightening of the nuts must be accomplished as required.
Use only forged clips for critical, heavy duty, overhead loads, such as support lines, guy lines, towing lines, tie downs, scaffolds, etc.
Malleable clips are to be used for making eye termination assemblies only with right regular lay wire rope and only for light duty uses with small applied loads, such as hand rails, fencing, guard rails, etc.
Wire Rope Clip Safety Notice
To comply with manufacturer’s specifications the correct number of clips must be installed correctly and
tightened to the correct torque using a torque wrench. The correct installation technique is shown below.
tightened to the correct torque using a torque wrench. The correct installation technique is shown below.
How to apply wire rope clips
Wire rope clips should be inspected before use to ensure that:
• all markings are legible;
• a wire rope clip with the correct dimension has been selected;
• never repair or reshape a wire rope clip by welding, heating or bending as this may affect the performance.
The wire rope clip should be fitted to the wire rope as shown in the diagrams below.
The bridge of the wire rope clip should always be placed on the load bearing part of the rope. The U-bolt of
the clip should be placed on the rope tail, also known as the “dead end” of the rope.
The bridge of the wire rope clip should always be placed on the load bearing part of the rope. The U-bolt of
the clip should be placed on the rope tail, also known as the “dead end” of the rope.
Turn back enough wire rope length so that the required minimum number of clips can be installed according to the instructions below.
1.Turn back specified amount of rope from thimble or loop. Apply first clip one base width from dead end of rope. Apply U-Bolt over dead end of wire rope with live end resting in saddle. Tighten nuts evenly, alternating from one nut to the other until reaching the recommended torque.
The first clip must be placed one bridge width from the turned back rope tail or dead end of the rope,according to figure 1. Tighten nuts to the specified torque.
2. When two clips are required, apply the second clip as near the loop or thimble as possible. Tighten nuts evenly, alternating until reaching the recommended torque. When more than two clips are required, apply the second clip as near the loop or thimble as possible, turn nuts on second clip firmly, but do not tighten.
The second clip must be placed immediately against the thimble but nevertheless in such a position that thecorrect tightening of the clip does not damage the outer wires of the wire rope (figure 2). Tighten the nuts firmly but not yet to the specified torque.
The following clips should be placed on the wire rope between the first and second clip in such a way that
they are separated by at least 1½ times the clip-width with a maximum of 3 times the clip-width according to figure 3.Apply light tension on the rope and tighten all nuts evenly, alternating until reaching the specified torque.
they are separated by at least 1½ times the clip-width with a maximum of 3 times the clip-width according to figure 3.Apply light tension on the rope and tighten all nuts evenly, alternating until reaching the specified torque.
During assembly and before the rope is taken into service, the nuts must be tightened once again to the
prescribed torque. After the load is applied for the first time, the torque value must be checked again and
corrected if necessary. Periodically re-tightening of the nuts must be done at 10.000 cycles (heavy usage),
20.000 e.g. every 3 months, 6 months, annually.
prescribed torque. After the load is applied for the first time, the torque value must be checked again and
corrected if necessary. Periodically re-tightening of the nuts must be done at 10.000 cycles (heavy usage),
20.000 e.g. every 3 months, 6 months, annually.
For other classifications of wire rope not mentioned above, it may be necessary to add additional clips to the number shown.
If a greater number of clips are used than shown in the table, the amount of rope turnback should be increased proportionately. ABOVE BASED ON USE OF PROPER SIZE U-BOLT CLIPS ON NEW ROPE.
IMPORTANT: Failure to make a termination in accordance with mentioned instructions, or failure to periodically check and retighten to the recommended torque, may cause a reduction in efficiency rating.
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