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Wire Rope

 

 
Wire Rope Attachments

Wire Rope Attachments

Wire Rope Clips Usage Information

*these figures are meant as a guide only – always lift within working load limits

For OSHA (construction) applications, see OSHA 1926.251

  1. 1. Refer to Table 1 in following these instructions. Turn back specified amount of rope from thimble or loop. Apply first clip one base width from dead end rope.Tighten nuts evenly, alternating from one nut to the other until reaching the recommended 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. Proceed to Step 3.
  3. When three or more clips are required, space additional clips equally between first two - take up rope slack - tighten nuts on each Clip evenly, alternating from one nut to the other until reaching recommended torque.
  4. If a pulley (sheave) is used in place of a thimble, add one additional Fist Grip. Fist Grip spacing should be as shown.
  5. 5.WIRE ROPE SPLICING PROCEDURES:
    The preferred method of splicing two wire ropes together is to use interlocking turn back eyes, with thimbles, using the recommended number of clips of each eye (See Figure 5) An alternate method is to use
    twice the number of clips as used for a turn back termination. The rope ends are placed parallel to each other, overlapping by twice the turn back amount shown in the application instructions. The minimum number of clips should be installed on each dead end (See Figure 6). Spacing, Installation torque, and other instructions still apply.
  6. IMPORTANT
    Apply first load test the assembly. This load should be of equal or greater weight than loads expected in use. Next, check and re-tighten nuts to recommended torque.
    In accordance with good rigging and maintenance practices, the wire rope end termination should be inspected periodically for wear, abuse, and general adequacy.

Forged Rope Slings - Attachments

Forged Wire Rope Clips
“Golden U-Bolt”
Drop forged saddle, Heavy duty galvanized, Torque tested threads, Manufactured to exceed U.S. Fed. Spec. FF-C-450, Type 1, C1. 1. Reaching over 80% efficiency of capacity of wire rope, if properly installed.

WARNING: Always fllow installation instructions! Failure to follow the instructions may result in serious injury!

Heavy Duty Wire Rope Thimbles “Galvanized

WARNING: Thimbles must match with size of wire rope. Material and strength to provide adequate safety protection.”
Proper installation is critical to maximize performance and safety!

  • Manufactured to U.S. Fed Spec. FF-T-276B Type III.
  • To Protect eyes of wire rope slings against cuts, abrasions, and kinks, etc.
  • For very demanding applications.
  • Made from cold rolled steel.

 Note: Wire rope thimbles do not have an established load rating, and are meant to serve as rope protection.

G-341 / S-341 Weldless Sling Links

Forged carbon steel - Quenched and Tempered.
Self Colored or Hot Dip galvanized.

*Ultimate Load is 6 times the Working Load Limit. Based on single leg sling (in-line load), or resultant load on multiple legs with an included angle less than or equal to 120°.

Wire Rope Slings - Attachments

Spelter Sockets

  • Forged Steel Sockets thru 1-1/2", cast alloy steel 1-5/8" thru 4".
  • Spelter socket terminations have an efficiency rating of 100%,based on the catalog strength of wire rope. Ratings are based on recommended use with, 6 x 19, or 6 x 37, IPS or XIP (EIP), XXIP (EEIP), RRL, FC, or IWRC wire rope.

G-416 / S-416
Open Spelter Sockets

Open Grooved Sockets meet the performance requirements of Federal Specification RR-S-550D, Type A, except for those provisions required of the contractor.

  • Forged Steel Sockets thru 1-1/2", cast alloy steel 1-5/8" thru 4".
  • Spelter socket terminations have an efficiency rating of 100%,based on the catalog strength of wire rope. Ratings are based on recommended use with 6 x 7, 6 x 19, or 6 x 37, IPS or XIP (EIP), XXIP (EEIP), RRL, FC, or IWRC wire rope.

G-417 / S-417
Closed Spelter Sockets

Open Grooved Sockets meet the performance requirements of Federal Specification RR-S-550D, Type A, except
for those provisions required of the contractor.

Notice: All cast steel sockets 1-5/8" and larger are magnetic particle inspected and ultrasonic inspected. Proof testing available on special order. Drawing illustrates one groove used on sockets 1/4" thru 3/4". Sizes 7/8" thru 1-1/2" use 2 grooves. Sizes 1-5/8" and larger use 3 grooves.

Swage Sockets

  • Forged from special bar quality carbon steel, suitable for cold forming.
  • Swage Socket terminations have an efficiency rating of 100% based on the catalog strength of wire rope.
  • Hardness controlled by spheroidize annealing.
  • Stamp for identification after swaging without concern for fractures (as per directions in National Swaging Brochure).
  • Swage sockets incorporate a reduced machined area of the shankwhich is equivalent to the proper "After Swage" dimension. Before swaging, this provides for an obvious visual difference in the shank diameter. After swaging, a uniform shank diameter is created allowing for a QUIC-CHECK® and permanent visual inspection opportunity.
  • Designed to quickly determine whether the socket has been through the swaging operation and assist in field inspections, it does not eliminate the need to perform standard production inspections which include gauging for the proper "After Swage" dimensions or proof loading.
  • U.S. Patent 5,152,630 and foreign equivalents. 

Open Swage Sockets

Closed Swage Sockets

NOTE: S-502 Swage Sockets are recommended for use with 6 x 19 or 6 x 37, IPS or XIP (EIP), XXIP (EEIP), RRL, FC or IWRC wire rope. Before using any National Swage fitting with any other type lay, construction or grade of wire rope, it is recommended that the termination be destructive tested and documented to prove the adequacy of the assembly to be manufactured. In accordance with ASME B30.9, all slings terminated with swage sockets shall be proof loaded.*

S-421T Wedge Sockets
Assembly includes Socket, Wedge, Pin and Wire Rope Clip

  • Wedge socket terminations have an effi ciency rating of 80% based on the catalog strength of XXIP wire rope.
  • Crosby products meet or exceed all requirements of ASME B30.26 including identification, ductility, design factor, proof load and temperature requirements. Importantly, Crosby products meet other critical perfor mance requirements including fatigue life, impact properties and material traceability, not addressed by ASME B30.26.
  • Type Approval and certification in acco rdance with ABS 2006 Steel Vessel Rules 1-1-17.7, and ABS Guide for Certification of Cranes.
  • Basket is cast steel and individually magnetic particle inspected.
  • Pin diameter and jaw opening allows wedge and socket to be used in conjunction with closed swage and spelter sockets.
  • Secures the tail or "dead end" of the wire rope to the wedge, thus eliminates loss or "Punch out" of the wedge.
  • Eliminates the need for an extra piece of rope, and is easily installed.
  • TheTERMINATOR ™ wedge eliminates the potential br eaking off of the tail due to fatigue.
  • The tail, which is secured by the base of the clip and the wedge, is left undeformed and available for reuse.
  • Incorporates Crosby’s patented QUIC-CHECK® "Go" and "No-Go" feature cast into the wedge. The proper size rope is determined when the following criteria are met:
    1. The wire rope should pass thru the "Go" hole in the wedge.
    2. The wire rope should NOT pass thru the "No-Go" hole in the wedge.
  • Utilizes standard Crosby Red-U-Bolt® wire rope clip.
  • The 3/8" thru 1-1/8" standard S-421 wedge socket can be retrofitted with the new style TERMINATOR ™ wedge.
  • Available with Bolt , Nut, and Cotter Pin.
  • U.S. patent 5,553,360, Canada pantet 2,217,004 and foreign equivalents.

Wedge Socket Warning & Application

Extended Wedge Socket Assembly U.S. Patent No. 5,553,360 and
Canada Patent No. 2,217,004

NOTE: The design of the basket for the S-421T 1-1/4” TERMINATORTM Wedge Socket does not allow proper fit to the old style Crosby S-421W wedge (see Fig. 1). Do not assemble or use.

The design of the basket for each US-422T TERMINATORTM Wedge Socket does not allow proper fit to the old style UWO-422 wedge (See Fig. 1). Do not assemble or use. All S-421T and US-422T TERMINATORTM baskets are marked with a capital “T” or TERMINATORTM.

 

QUIC-CHECK® “Go” and “No-Go” features
cast into wedge. The proper size wire rope is
determined when the following criteria are met:

  1.  The wire rope shall pass thru the “Go” hole in the wedge.
  2. The wire rope shall NOT pass thru the “No-Go” hole in the
    wedge.

Important Safety Information - Read and Follow
Inspection/Maintenance Safety

  • Always inspect socket, wedge and pin before using.
  • Do not use part showing cracks.
  • Do not use modified or substitute parts.
  • Repair minor nicks or gouges to socket or pin by lightly
    grinding until surfaces are smooth. Do not reduce original
    dimension more than 10%. Do not repair by welding.
  • Inspect permanent assemblies annually, or more often in
    severe operating conditions.
  • Do not mix and match wedges or pins between models or
    sizes.
  • Always select the proper wedge and socket for the wire rope
    size.

Assembly Safety

  • Use only with standard 6 to 8 strand wire rope of designated
    size. For intermediate size rope, use next larger size socket.
    For example: When using 9/16" diameter wire rope use a 5/8"
    size Wedge Socket Assembly. Welding of the tail on standard
    wire rope is not recommended. The tail length of the dead end
    should be a minimum of 6 rope diameters but not less than 6"
    (See Fig, 2).
  • To use with Rotation Resistant wire rope (special wire rope
    constructions with 8 or more outer strands) ensure that the
    dead end is welded, brazed or seized before inserting the wire
    rope into the wedge socket to prevent core slippage or loss of
    rope lay. The tail length of the dead end should be a minimum
    of 20 rope diameters but not less than 6" (See Fig. 2).
  • Properly match socket, wedge and clip (See Table 1) to wire
    rope size.
  • Align live end of rope, with center line of pin (See Fig. 2).
  • Secure dead end section of rope (See Fig. 2).
  • Tighten nuts on clip to recommended torque (see Table 1).
  • Do not attach dead end to live end or install wedge backwards (see Fig. 3).
  • Use a hammer to seat Wedge and Rope as deep into soket as possible before applying first load.

Operating Safety

  • Apply first load to fully seat the Wedge and Wire Rope in the socket. This load should be of equal or greater weight than loads expected in use.
  • Efficiency rating of the Wedge Socket termination is based upon the catalog breaking strength of Wire Rope. The efficiency of a properly assembled Wedge Socket is 80%.
  • During use, do not strike the dead end section with any other elements of the rigging (Called two blocking).