Wire rope clips are obtainable in two basic designs: U-bolt (1) and Fist Grip (2). Their
efficiency is the same.
WIRE ROPE CLIPS
Wire rope clips are widely used for attaching wire rope to haulages, mine cars, hoist, and
for joining two ropes.
Clips are available in two basic designs: the U-bolt and fist grip (Fig. 23). 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 the “U” section is in contact with the
dead end of the rope (Fig. 24). Also, the tightening and retightening of the nuts must be
accomplished as required.
HOW TO APPLY CLIPS
U-BOLT CLIPS (Table 6, page 30)
Recommended Method of Applying U-Bolt Clips to Get Maximum Holding Power of the Clip
1. Turn back the specified amount of rope from the thimble. Apply the first clip one base
width from the dead end of the wire rope (U-bolt over dead end-live end rest in clip
saddle). Tighten nuts evenly to recommended torque.
2. Apply the next clip as near the loop as possible. Turn on nuts firm but do not tighten.
3. Space additional clips is required equally between the first two. Turn on nutstake up
rope slack-tighten all nuts evenly on all clips to recommended torque.
4. 4) NOTICE! Apply the initial load and retighten nuts to the recommended torque. Rope
will stretch and shrink in diameter when loads are applied. Inspect periodically and
retighten.
A termination made in accordance with the above instructions, and using the number of
clips shown has an approximate 80% efficiency rating. This rating is based upon the
catalog breaking strength of wire rope If a pulley is using in place of a thimble for turning
back the rope, add one additional clip.
The number of clips shown is based upon using right regular or lang lay wire rope, 6 x 19
class or 6 x 37 class, fiber core or IWRC, IPS or XIPS. If Seale construction or similar large
outer wire type construction in the 6 x 19 class is to be used for sizes 1 inch and larger,
add one additional clip.
The number of clips shown also applies to right regular lay wire rope, 8 x 19 class, fibre
core, IPS, sizes 1 1/2 inch and smaller; and right regular lay wire rope, 18 x 7 class, fibre
core, IPS or XIPS, sizes 1 3/4 and smaller.
For other classes 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 proportionally. ABOVE BASED ON USE OF CLIPS ON NEW ROPE
RT500
Applicable Standards / Regulations
304 REVISED:
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