[Code of Federal Regulations]
[Title 29, Volume 8]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 29CFR1926.251]
[Page 213-225]
TITLE 29--LABOR
CHAPTER XVII--OCCUPATIONAL SAFETY AND HEALTH ADMINISTRATION, DEPARTMENT
OF LABOR
PART 1926_SAFETY AND HEALTH REGULATIONS FOR CONSTRUCTION--Table of Contents
Subpart H_Materials Handling, Storage, Use, and Disposal
Sec. 1926.251 Rigging equipment for material handling.
(a) General. (1) Rigging equipment for material handling shall be
inspected prior to use on each shift and as necessary during its use to
ensure that it is safe. Defective rigging equipment shall be removed
from service.
(2) Rigging equipment shall not be loaded in excess of its
recommended safe working load, as prescribed in Tables H-1 through H-20
in this subpart, following Sec. 1926.252(e) for the specific equipment.
(3) Rigging equipment, when not in use, shall be removed from the
immediate work area so as not to present a hazard to employees.
(4) Special custom design grabs, hooks, clamps, or other lifting
accessories, for such units as modular panels, prefabricated structures
and similar materials, shall be marked to indicate the safe working
loads and shall be proof-tested prior to use to 125 percent of their
rated load.
(5) Scope. This section applies to slings used in conjunction with
other material handling equipment for the movement of material by
hoisting, in employments covered by this part. The types of slings
covered are those made from alloy steel chain, wire rope, metal mesh,
natural or synthetic fiber rope (conventional three strand
construction), and synthetic web (nylon, polyester, and polypropylene).
(6) Inspections. Each day before being used, the sling and all
fastenings and attachments shall be inspected for damage or defects by a
competent person designated by the employer. Additional inspections
shall be performed during sling use, where service conditions warrant.
Damaged or defective slings shall be immediately removed from service.
(b) Alloy steel chains. (1) Welded alloy steel chain slings shall
have permanently affixed durable identification stating size, grade,
rated capacity, and sling manufacturer.
(2) Hooks, rings, oblong links, pear-shaped links, welded or
mechanical coupling links, or other attachments, when used with alloy
steel chains, shall have a rated capacity at least equal to that of the
chain.
(3) Job or shop hooks and links, or makeshift fasteners, formed from
bolts, rods, etc., or other such attachments, shall not be used.
(4) Rated capacity (working load limit) for alloy steel chain slings
shall conform to the values shown in Table H-1.
(5) Whenever wear at any point of any chain link exceeds that shown
in Table H-2, the assembly shall be removed from service.
(6) Inspections. (i) In addition to the inspection required by other
paragraphs of this section, a thorough periodic inspection of alloy
steel chain slings in use shall be made on a regular basis, to be
determined on the basis of (A) frequency of sling use; (B) severity of
service conditions; (C) nature of lifts being made; and (D) experience
gained on the service life of slings used in similar circumstances. Such
inspections shall in no event be at intervals greater than once every 12
months.
(ii) The employer shall make and maintain a record of the most
recent
[[Page 214]]
month in which each alloy steel chain sling was thoroughly inspected,
and shall make such record available for examination.
(c) Wire rope. (1) Tables H-3 through H-14 shall be used to
determine the safe working loads of various sizes and classifications of
improved plow steel wire rope and wire rope slings with various types of
terminals. For sizes, classifications, and grades not included in these
tables, the safe working load recommended by the manufacturer for
specific, identifiable products shall be followed, provided that a
safety factor of not less than 5 is maintained.
(2) Protruding ends of strands in splices on slings and bridles
shall be covered or blunted.
(3) Wire rope shall not be secured by knots, except on haul back
lines on scrapers.
(4) The following limitations shall apply to the use of wire rope:
(i) An eye splice made in any wire rope shall have not less than
three full tucks. However, this requirement shall not operate to
preclude the use of another form of splice or connection which can be
shown to be as efficient and which is not otherwise prohibited.
(ii) Except for eye splices in the ends of wires and for endless
rope slings, each wire rope used in hoisting or lowering, or in pulling
loads, shall consist of one continuous piece without knot or splice.
(iii) Eyes in wire rope bridles, slings, or bull wires shall not be
formed by wire rope clips or knots.
(iv) Wire rope shall not be used if, in any length of eight
diameters, the total number of visible broken wires exceeds 10 percent
of the total number of wires, or if the rope shows other signs of
excessive wear, corrosion, or defect.
(5) When U-bolt wire rope clips are used to form eyes, Table H-20
shall be used to determine the number and spacing of clips.
(i) When used for eye splices, the U-bolt shall be applied so that
the ``U'' section is in contact with the dead end of the rope.
(6) Slings shall not be shortened with knots or bolts or other
makeshift devices.
(7) Sling legs shall not be kinked.
(8) Slings used in a basket hitch shall have the loads balanced to
prevent slippage.
(9) Slings shall be padded or protected from the sharp edges of
their loads.
(10) Hands or fingers shall not be placed between the sling and its
load while the sling is being tightened around the load.
(11) Shock loading is prohibited.
(12) A sling shall not be pulled from under a load when the load is
resting on the sling.
(13) Minimum sling lengths. (i) Cable laid and 6 x 19 and 6 x 37
slings shall have a minimum clear length of wire rope 10 times the
component rope diameter between splices, sleeves or end fittings.
(ii) Braided slings shall have a minimum clear length of wire rope
40 times the component rope diameter between the loops or end fittings.
(iii) Cable laid grommets, strand laid grommets and endless slings
shall have a minimum circumferential length of 96 times their body
diameter.
(14) Safe operating temperatures. Fiber core wire rope slings of all
grades shall be permanently removed from service if they are exposed to
temperatures in excess of 200 [deg]F (93.33 [deg]C). When nonfiber core
wire rope slings of any grade are used at temperatures above 400 [deg]F
(204.44 [deg]C) or below minus 60 [deg]F (15.55 [deg]C), recommendations
of the sling manufacturer regarding use at that temperature shall be
followed.
(15) End attachments. (i) Welding of end attachments, except covers
to thimbles, shall be performed prior to the assembly of the sling.
(ii) All welded end attachments shall not be used unless proof
tested by the manufacturer or equivalent entity at twice their rated
capacity prior to initial use. The employer shall retain a certificate
of the proof test, and make it available for examination.
(d) Natural rope, and synthetic fiber--(1) General. When using
natural or synthetic fiber rope slings, Tables H-15, 16, 17, and 18
shall apply.
(2) All splices in rope slings provided by the employer shall be
made in accordance with fiber rope manufacturers recommendations.
[[Page 215]]
(i) In manila rope, eye splices shall contain at least three full
tucks, and short splices shall contain at least six full tucks (three on
each side of the centerline of the splice).
(ii) In layed synthetic fiber rope, eye splices shall contain at
least four full tucks, and short splices shall contain at least eight
full tucks (four on each side of the centerline of the splice).
(iii) Strand end tails shall not be trimmed short (flush with the
surface of the rope) immediately adjacent to the full tucks. This
precaution applies to both eye and short splices and all types of fiber
rope. For fiber ropes under 1-inch diameter, the tails shall project at
least six rope diameters beyond the last full tuck. For fiber ropes 1-
inch diameter and larger, the tails shall project at least 6 inches
beyond the last full tuck. In applications where the projecting tails
may be objectionable, the tails shall be tapered and spliced into the
body of the rope using at least two additional tucks (which will require
a tail length of approximately six rope diameters beyond the last full
tuck).
(iv) For all eye splices, the eye shall be sufficiently large to
provide an included angle of not greater than 60[deg] at the splice when
the eye is placed over the load or support.
(v) Knots shall not be used in lieu of splices.
(3) Safe operating temperatures. Natural and synthetic fiber rope
slings, except for wet frozen slings, may be used in a temperature range
from minus 20 [deg]F (-28.88 [deg]C) to plus 180 [deg]F (82.2 [deg]C)
without decreasing the working load limit. For operations outside this
temperature range and for wet frozen slings, the sling manufacturer's
recommendations shall be followed.
(4) Splicing. Spliced fiber rope slings shall not be used unless
they have been spliced in accordance with the following minimum
requirements and in accordance with any additional recommendations of
the manufacturer:
(i) In manila rope, eye splices shall consist of at least three full
tucks, and short splices shall consist of at least six full tucks, three
on each side of the splice center line.
(ii) In synthetic fiber rope, eye splices shall consist of at least
four full tucks, and short splices shall consist of at least eight full
tucks, four on each side of the center line.
(iii) Strand end tails shall not be trimmed flush with the surface
of the rope immediately adjacent to the full tucks. This applies to all
types of fiber rope and both eye and short splices. For fiber rope under
1 inch (2.54 cm) in diameter, the tail shall project at least six rope
diameters beyond the last full tuck. For fiber rope 1 inch (2.54 cm) in
diameter and larger, the tail shall project at least 6 inches (15.24 cm)
beyond the last full tuck. Where a projecting tail interferes with the
use of the sling, the tail shall be tapered and spliced into the body of
the rope using at least two additional tucks (which will require a tail
length of approximately six rope diameters beyond the last full tuck).
(iv) Fiber rope slings shall have a minimum clear length of rope
between eye splices equal to 10 times the rope diameter.
(v) Knots shall not be used in lieu of splices.
(vi) Clamps not designed specifically for fiber ropes shall not be
used for splicing.
(vii) For all eye splices, the eye shall be of such size to provide
an included angle of not greater than 60 degrees at the splice when the
eye is placed over the load or support.
(5) End attachments. Fiber rope slings shall not be used if end
attachments in contact with the rope have sharp edges or projections.
(6) Removal from service. Natural and synthetic fiber rope slings
shall be immediately removed from service if any of the following
conditions are present:
(i) Abnormal wear.
(ii) Powdered fiber between strands.
(iii) Broken or cut fibers.
(iv) Variations in the size or roundness of strands.
(v) Discoloration or rotting.
(vi) Distortion of hardware in the sling.
(e) Synthetic webbing (nylon, polyester, and polypropylene). (1) The
employer shall have each synthetic web sling marked or coded to show:
(i) Name or trademark of manufacturer.
[[Page 216]]
(ii) Rated capacities for the type of hitch.
(iii) Type of material.
(2) Rated capacity shall not be exceeded.
(3) Webbing. Synthetic webbing shall be of uniform thickness and
width and selvage edges shall not be split from the webbing's width.
(4) Fittings. Fittings shall be:
(i) Of a minimum breaking strength equal to that of the sling; and
(ii) Free of all sharp edges that could in any way damage the
webbing.
(5) Attachment of end fittings to webbing and formation of eyes.
Stitching shall be the only method used to attach end fittings to
webbing and to form eyes. The thread shall be in an even pattern and
contain a sufficient number of stitches to develop the full breaking
strength of the sling.
(6) Environmental conditions. When synthetic web slings are used,
the following precautions shall be taken:
(i) Nylon web slings shall not be used where fumes, vapors, sprays,
mists or liquids of acids or phenolics are present.
(ii) Polyester and polypropylene web slings shall not be used where
fumes, vapors, sprays, mists or liquids of caustics are present.
(iii) Web slings with aluminum fittings shall not be used where
fumes, vapors, sprays, mists or liquids of caustics are present.
(7) Safe operating temperatures. Synthetic web slings of polyester
and nylon shall not be used at temperatures in excess of 180 [deg]F
(82.2 [deg]C). Polypropylene web slings shall not be used at
temperatures in excess of 200 [deg]F (93.33 [deg]C).
(8) Removal from service. Synthetic web slings shall be immediately
removed from service if any of the following conditions are present:
(i) Acid or caustic burns;
(ii) Melting or charring of any part of the sling surface;
(iii) Snags, punctures, tears or cuts;
(iv) Broken or worn stitches; or
(v) Distortion of fittings.
(f) Shackles and hooks. (1) Table H-19 shall be used to determine
the safe working loads of various sizes of shackles, except that higher
safe working loads are permissible when recommended by the manufacturer
for specific, identifiable products, provided that a safety factor of
not less than 5 is maintained.
(2) The manufacturer's recommendations shall be followed in
determining the safe working loads of the various sizes and types of
specific and identifiable hooks. All hooks for which no applicable
manufacturer's recommendations are available shall be tested to twice
the intended safe working load before they are initially put into use.
The employer shall maintain a record of the dates and results of such
tests.
Table H-1--Rated Capacity (Working Load Limit), for Alloy Steel Chain Slings \1\
Rated Capacity (Working Load Limit), Pounds
[Horizontal angles shown in parentheses] (2)
----------------------------------------------------------------------------------------------------------------
Double sling vertical angle (1) Triple and quadruple sling
Single branch --------------------------------- vertical angle (1)
Chain size (inches) sling--90[deg] --------------------------------
loading 30[deg] 45[deg] 60[deg] 30[deg] 45[deg] 60[deg]
(60[deg]) (45[deg]) (30[deg]) (60[deg]) (45[deg]) (30[deg])
----------------------------------------------------------------------------------------------------------------
\1/4\......................... 3,250 5,560 4,550 3,250 8,400 6,800 4,900
\3/8\......................... 6,600 11,400 9,300 6,600 17,000 14,000 9,900
\1/2\......................... 11,250 19,500 15,900 11,250 29,000 24,000 17,000
\5/8\......................... 16,500 28,500 23,300 16,500 43,000 35,000 24,500
\3/4\......................... 23,000 39,800 32,500 23,000 59,500 48,500 34,500
\7/8\......................... 28,750 49,800 40,600 28,750 74,500 61,000 43,000
1............................. 38,750 67,100 54,800 38,750 101,000 82,000 58,000
1\1/8\........................ 44,500 77,000 63,000 44,500 115,500 94,500 66,500
1\1/4\........................ 57,500 99,500 81,000 57,500 149,000 121,500 86,000
1\3/8\........................ 67,000 116,000 94,000 67,000 174,000 141,000 100,500
1\1/2\........................ 80,000 138,000 112,500 80,000 207,000 169,000 119,500
1\3/4\........................ 100,000 172,000 140,000 100,000 258,000 210,000 150,000
----------------------------------------------------------------------------------------------------------------
\1\ Other grades of proof tested steel chain include Proof Coil, BBB Coil and Hi-Test Chain. These grades are
not recommended for overhead lifting and therefore are not covered by this code.
(1) Rating of multileg slings adjusted for angle of loading measured as the included angle between the inclined
leg and the vertical.
(2) Rating of multileg slings adjusted for angle of loading between the inclined leg and the horizontal plane of
the load.
[[Page 217]]
Table H-2--Maximum Allowable Wear at any Point of Link
------------------------------------------------------------------------
Maximum
allowable
Chain size (inches) wear
(inch)
------------------------------------------------------------------------
\1/4\....................................................... \3/64\
\3/8\....................................................... \5/64\
\1/2\....................................................... \7/64\
\5/8\....................................................... \9/64\
\3/4\....................................................... \5/32\
\7/8\....................................................... \11/64\
1........................................................... \3/16\
1\1/8\...................................................... \7/32\
1\1/4\...................................................... \1/4\
1\3/8\...................................................... \9/32\
1\1/2\...................................................... \5/16\
1\3/4\...................................................... \11/32\
------------------------------------------------------------------------
Table H-3--Rated Capacities for Single Leg Slings
6x19 and 6x37 Classification Improved Plow Steel Grade Rope with Fiber Core (FC)
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
Vertical Choker Vertical basket \1\
Dia. Constr. ------------------------------------------------------------------------------------------
(inches) HT MS S HT MS S HT MS S
----------------------------------------------------------------------------------------------------------------
\1/4\ 6x19 0.49 0.51 0.55 0.37 0.38 0.41 0.99 1.0 1.1
\5/16\ 6x19 0.76 0.79 0.85 0.57 0.59 0.64 1.5 1.6 1.7
\3/8\ 6x19 1.1 1.1 1.2 0.80 0.85 0.91 2.1 2.2 2.4
\7/16\ 6x19 1.4 1.5 1.6 1.1 1.1 1.2 2.9 3.0 3.3
\1/2\ 6x19 1.8 2.0 2.1 1.4 1.5 1.6 3.7 3.9 4.3
\9/16\ 6x19 2.3 2.5 2.7 1.7 1.9 2.0 4.6 5.0 5.4
\5/8\ 6x19 2.8 3.1 3.3 2.1 2.3 2.5 5.6 6.2 6.7
\3/4\ 6x19 3.9 4.4 4.8 2.9 3.3 3.6 7.8 8.8 9.5
\7/8\ 6x19 5.1 5.9 6.4 3.9 4.5 4.8 10.0 12.0 13.0
1 6x19 6.7 7.7 8.4 5.0 5.8 6.3 13.0 15.0 17.0
1\1/8\ 6x19 8.4 9.5 10.0 6.3 7.1 7.9 17.0 19.0 21.0
1\1/4\ 6x37 9.8 11.0 12.0 7.4 8.3 9.2 20.0 22.0 25.0
1\3/8\ 6x37 12.0 13.0 15.0 8.9 10.0 11.0 24.0 27.0 30.0
1\1/2\ 6x37 14.0 16.0 17.0 10.0 12.0 13.0 28.0 32.0 35.0
1\5/8\ 6x37 16.0 18.0 21.0 12.0 14.0 15.0 33.0 37.0 41.0
1\3/4\ 6x37 19.0 21.0 24.0 14.0 16.0 18.0 38.0 43.0 48.0
2 6x37 25.0 28.0 31.0 18.0 21.0 23.0 49.0 55.0 62.0
----------------------------------------------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio for HT slings is 10 or greater, and for MS and S Slings is 20 or
greater where:
D=Diameter of curvature around which the body of the sling is bent. d=Diameter of rope.
HT=Hand Tucked Splice and Hidden Tuck Splice. For hidden tuck splice (IWRC) use values in HT columns.
MS=Mechanical Splice.
S=Swaged or Zinc Poured Socket.
Table H-4--Rated Capacities for Single Leg Slings
6x19 and 6x37 Classification Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
Vertical Choker Vertical basket \1\
Dia. Constr. ------------------------------------------------------------------------------------------
(inches) HT MS S HT MS S HT MS S
----------------------------------------------------------------------------------------------------------------
\1/4\ 6x19 0.53 0.56 0.59 0.40 0.42 0.44 1.0 1.1 1.2
\5/16\ 6x19 0.81 0.87 0.92 0.61 0.65 0.69 1.6 1.7 1.8
\3/8\ 6x19 1.1 1.2 1.3 0.86 0.93 0.98 2.3 2.5 2.6
\7/16\ 6x19 1.5 1.7 1.8 1.2 1.3 1.3 3.1 3.4 3.5
\1/2\ 6x19 2.0 2.2 2.3 1.5 1.6 1.7 3.9 4.4 4.6
\9/16\ 6x19 2.5 2.7 2.9 1.8 2.1 2.2 4.9 5.5 5.8
\5/8\ 6x19 3.0 3.4 3.6 2.2 2.5 2.7 6.0 6.8 7.2
\3/4\ 6x19 4.2 4.9 5.1 3.1 3.6 3.8 8.4 9.7 10.0
\7/8\ 6x19 5.5 6.6 6.9 4.1 4.9 5.2 11.0 13.0 14.0
1 6x19 7.2 8.5 9.0 5.4 6.4 6.7 14.0 17.0 18.0
1\1/8\ 6x19 9.0 10.0 11.0 6.8 7.8 8.5 18.0 21.0 23.0
1\1/4\ 6x37 10.0 12.0 13.0 7.9 9.2 9.9 21.0 24.0 26.0
1\3/8\ 6x37 13.0 15.0 16.0 9.6 11.0 12.0 25.0 29.0 32.0
1\1/2\ 6x37 15.0 17.0 19.0 11.0 13.0 14.0 30.0 35.0 38.0
1\5/8\ 6x37 18.0 20.0 22.0 13.0 15.0 17.0 35.0 41.0 44.0
1\3/4\ 6x37 20.0 24.0 26.0 15.0 18.0 19.0 41.0 47.0 51.0
2 6x37 26.0 30.0 33.0 20.0 23.0 25.0 53.0 61.0 66.0
----------------------------------------------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio for HT slings is 10 or greater, and for MS and S Slings is 20 or
greater where:
D=Diameter of curvature around which the body of the sling is bent. d=Diameter of rope.
HT=Hand Tucked Splice: For hidden tuck splice (IWRC) use Table H-3 values in HT column.
MS=Mechanical Splice.
[[Page 218]]
S=Swaged or Zinc Poured Socket.
Table H-5--Rated Capacities for Single Leg Slings
Cable Laid Rope--Mechanical Splice Only
7x7x7 and 7x7x19 Construction Galvanized Aircraft Grade Rope
7x6x19 IWRC Construction Improved Plow Steel Grade Rope
------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
------------------------------------------------------------------------
Vertical
Dia. (inches) Constr. Vertical Choker basket \1\
------------------------------------------------------------------------
\1/4\ 7x7x7 0.50 0.38 1.0
\3/8\ 7x7x7 1.1 0.81 2.2
\1/2\ 7x7x7 1.8 1.4 3.7
\5/8\ 7x7x7 2.8 2.1 5.5
\3/4\ 7x7x7 3.8 2.9 7.6
\5/8\ 7x7x19 2.9 2.2 5.8
\3/4\ 7x7x19 4.1 3.0 8.1
\7/8\ 7x7x19 5.4 4.0 11.0
1 7x7x19 6.9 5.1 14.0
1\1/8\ 7x7x19 8.2 6.2 16.0
1\1/4\ 7x7x19 9.9 7.4 20.0
\3/4\ \2\ 7x6x19 3.8 2.8 7.6
\7/8\ \2\ 7x6x19 5.0 3.8 10.0
1 \2\ 7x6x19 6.4 4.8 13.0
1\1/8\ \2\ 7x6x19 7.7 5.8 15.0
1\1/4\ \2\ 7x6x19 9.2 6.9 18.0
1\5/16\ \2\ 7x6x19 10.0 7.5 20.0
1\3/8\ \2\ 7x6x19 11.0 8.2 22.0
1\1/2\ \2\ 7x6x19 13.0 9.6 26.0
------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio in 10 or greater where:
D=Diameter of curvature around which the body of the sling is bent.
d=Diameter of rope.
\2\ IWRC.
Table H-6--Rated Capacities for Single Leg Slings
8-Part and 6-Part Braided Rope
6x7 and 6x19 Construction Improved Plow Steel Grade Rope
7x7 Construction Galvanized Aircraft Grade Rope
----------------------------------------------------------------------------------------------------------------
Component ropes Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
Vertical Choker Basket vertical
------------------------------------ to 30[deg] \1\
Diameter (inches) Constr. -----------------
8-Part 6-Part 8-Part 6-Part 8-Part 6-Part
----------------------------------------------------------------------------------------------------------------
\3/32\........................................... 6x7 0.42 0.32 0.32 0.24 0.74 0.55
\1/8\............................................ 6x7 0.76 0.57 0.57 0.42 1.3 0.98
\3/16\........................................... 6x7 1.7 1.3 1.3 0.94 2.9 2.2
\3/32\........................................... 7x7 0.51 0.39 0.38 0.29 0.89 0.67
\1/8\............................................ 7x7 0.95 0.71 0.71 0.53 1.6 1.2
\3/16\........................................... 7x7 2.1 1.5 1.5 1.2 3.6 2.7
\3/16\........................................... 6x19 1.7 1.3 1.3 0.98 3.0 2.2
\1/4\............................................ 6x19 3.1 2.3 2.3 1.7 5.3 4.0
\5/16\........................................... 6x19 4.8 3.6 3.6 2.7 8.3 6.2
\3/8\............................................ 6x19 6.8 5.1 5.1 3.8 12.0 8.9
\7/16\........................................... 6x19 9.3 6.9 6.9 5.2 16.0 12.0
\1/2\............................................ 6x19 12.0 9.0 9.0 6.7 21.0 15.0
\9/16\........................................... 6x19 15.0 11.0 11.0 8.5 26.0 20.0
\5/8\............................................ 6x19 19.0 14.0 14.0 10.0 32.0 24.0
\3/4\............................................ 6x19 27.0 20.0 20.0 15.0 46.0 35.0
\7/8\............................................ 6x19 36.0 27.0 27.0 20.0 62.0 47.0
1................................................ 6x19 47.0 35.0 35.0 26.0 81.0 61.0
----------------------------------------------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio is 20 or greater where: D=Diameter of curvature around which the
body of the sling is bent. d=Diameter of component rope.
Table H-7--Rated Capacities for 2-Leg and 3-Leg Bridle Slings
6x19 and 6x37 Classification Improved Plow Steel Grade Rope With Fiber Core (FC)
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
2-leg bridle slings 3-leg bridle slings
--------------------------------------------------------------------------------------------
30[deg] \1\ 45[deg] angle 60[deg] \1\ 30[deg] \1\ 45[deg] angle 60[deg] \1\
Dia. Constr. (60[deg]) \2\ ---------------- (30[deg]) \2\ (60[deg]) \2\ --------------- (30[deg])
(inches) ---------------- -------------------------------- \2\
HT MS HT MS -------------
HT MS HT MS HT MS HT MS
----------------------------------------------------------------------------------------------------------------
\1/4\ 6x19 0.85 0.88 0.70 0.72 0.49 0.51 1.3 1.3 1.0 1.1 0.74 0.7
\5/16\ 6x19 1.3 1.4 1.1 1.1 0.76 0.79 2.0 2.0 1.6 1.7 1.1 1.2
\3/8\ 6x19 1.8 1.9 1.5 1.6 1.1 1.1 2.8 2.9 2.3 2.4 1.6 1.7
\7/16\ 6x19 2.5 2.6 2.0 2.2 1.4 1.5 3.7 4.0 3.0 3.2 2.1 2.3
\1/2\ 6x19 3.2 3.4 2.6 2.8 1.8 2.0 4.8 5.1 3.9 4.2 2.8 3.0
\9/16\ 6x19 4.0 4.3 3.2 3.5 2.3 2.5 6.0 6.5 4.9 5.3 3.4 3.7
[[Page 219]]
\5/8\ 6x19 4.8 5.3 4.0 4.4 2.8 3.1 7.3 8.0 5.9 6.5 4.2 4.6
\3/4\ 6x19 6.8 7.6 5.5 6.2 3.9 4.4 10.0 11.0 8.3 9.3 5.8 6.6
\7/8\ 6x19 8.9 10.0 7.3 8.4 5.1 5.9 13.0 15.0 11.0 13.0 7.7 8.9
1 6x19 11.0 13.0 9.4 11.0 6.7 7.7 17.0 20.0 14.0 16.0 10.0 11.0
1\1/8\ 6x19 14.0 16.0 12.0 13.0 8.4 9.5 22.0 24.0 18.0 20.0 13.0 14.0
1\1/4\ 6x37 17.0 19.0 14.0 16.0 9.8 11.0 25.0 29.0 21.0 23.0 15.0 17.0
1\3/8\ 6x37 20.0 23.0 17.0 19.0 12.0 13.0 31.0 35.0 25.0 28.0 18.0 20.0
1\1/2\ 6x37 24.0 27.0 20.0 22.0 14.0 16.0 36.0 41.0 30.0 33.0 21.0 24.0
1\5/8\ 6x37 28.0 32.0 23.0 26.0 16.0 18.0 43.0 48.0 35.0 39.0 25.0 28.0
1\3/4\ 6x37 33.0 37.0 27.0 30.0 19.0 21.0 49.0 56.0 40.0 45.0 28.0 32.0
2 6x37 43.0 48.0 35.0 39.0 25.0 28.0 64.0 72.0 52.0 59.0 37.0 41.0
----------------------------------------------------------------------------------------------------------------
HT=Hand Tucked Splice.
MS=Mechanical Splice.
\1\ Vertical angles.
\2\ Horizontal angles.
Table H-8--Rated Capacities for 2-Leg and 3-Leg Bridle Slings
6x19 and 6x37 Classification Improved Plow Steel Grade Rope With Independent Wire Rope Core (IWRC)
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
2-leg bridle slings 3-leg bridle slings
--------------------------------------------------------------------------------------------
30[deg] \1\ 45[deg] angle 60[deg] \1\ 30[deg] \1\ 45[deg] angle 60[deg] \1\
Dia. Constr. (60[deg]) \2\ ---------------- (30[deg]) \2\ (60[deg]) \2\ --------------- (30[deg])
(inches) ---------------- -------------------------------- \2\
HT MS HT MS -------------
HT MS HT MS HT MS HT MS
----------------------------------------------------------------------------------------------------------------
\1/4\ 6x19 0.92 0.97 0.75 0.79 0.53 0.56 1.4 1.4 1.1 1.2 0.79 0.84
\5/16\ 6x19 1.4 1.5 1.1 1.2 1.81 0.87 2.1 2.3 1.7 1.8 1.2 1.3
\3/8\ 6x19 2.0 2.1 1.6 1.8 1.1 1.2 3.0 3.2 2.4 2.6 1.7 1.9
\7/16\ 6x19 2.7 2.9 2.2 2.4 1.5 1.7 4.0 4.4 3.3 3.6 2.3 2.5
\1/2\ 6x19 3.4 3.8 2.8 3.1 2.0 2.2 5.1 5.7 4.2 4.6 3.0 3.3
\9/16\ 6x19 4.3 4.8 3.5 3.9 2.5 2.7 6.4 7.1 5.2 5.8 3.7 4.1
\5/8\ 6x19 5.2 5.9 4.2 4.8 3.0 3.4 7.8 8.8 6.4 7.2 4.5 5.1
\3/4\ 6x19 7.3 8.4 5.9 6.9 4.2 4.9 11.0 13.0 8.9 10.0 6.3 7.3
\7/8\ 6x19 9.6 11.0 7.8 9.3 5.5 6.6 14.0 17.0 12.0 14.0 8.3 9.9
1 6x19 12.0 15.0 10.0 12.0 7.2 8.5 19.0 22.0 15.0 18.0 11.0 13.0
1\1/8\ 6x19 16.0 18.0 13.0 15.0 9.0 10.0 23.0 27.0 19.0 22.0 13.0 16.0
1\1/4\ 6x37 18.0 21.0 15.0 17.0 10.0 12.0 27.0 32.0 22.0 26.0 16.0 18.0
1\3/8\ 6x37 22.0 25.0 18.0 21.0 13.0 15.0 33.0 38.0 27.0 31.0 19.0 22.0
1\1/2\ 6x37 26.0 30.0 21.0 25.0 15.0 17.0 39.0 45.0 32.0 37.0 23.0 26.0
1\5/8\ 6x37 31.0 35.0 25.0 29.0 18.0 20.0 46.0 53.0 38.0 43.0 27.0 31.0
1\3/4\ 6x37 35.0 41.0 29.0 33.0 20.0 24.0 53.0 61.0 43.0 50.0 31.0 35.0
2 6x37 46.0 53.0 37.0 43.0 26.0 30.0 68.0 79.0 56.0 65.0 40.0 46.0
----------------------------------------------------------------------------------------------------------------
HT=Hand Tucked Splice.
MS=Mechanical Splice.
\1\ Vertical angles.
\2\ Horizontal angles.
Table H-9--Rated Capacities for 2-Leg and 3-Leg Bridle Slings
Cable Laid Rope--Mechanical Splice Only
7x7x7 and 7x7x19 Construction Galvanized Aircraft Grade Rope
7x6x19 IWRC Construction Improved Plow Steel Grade Rope
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
2-leg bridle sling 3-leg bridle sling
-------------------------------------------------------------
30[deg] 60[deg] 30[deg] 60[deg]
Dia. (inches) Constr. \1\ 45[deg] \1\ \1\ 45[deg] \1\
(60[deg]) angle (30[deg]) (60[deg]) angle (30[deg])
\2\ \2\ \2\ \2\
----------------------------------------------------------------------------------------------------------------
\1/4\.......................... 7x7x7............ 0.87 0.71 0.50 1.3 1.1 0.75
\3/8\.......................... 7x7x7............ 1.9 1.5 1.1 2.8 2.3 1.6
\1/2\.......................... 7x7x7............ 3.2 2.6 1.8 4.8 3.9 2.8
\5/8\.......................... 7x7x7............ 4.8 3.9 2.8 7.2 5.9 4.2
\3/4\.......................... 7x7x7............ 6.6 5.4 3.8 9.9 8.1 5.7
[[Page 220]]
\5/8\.......................... 7x7x19........... 5.0 4.1 2.9 7.5 6.1 4.3
\3/4\.......................... 7x7x19........... 7.0 5.7 4.1 10.0 8.6 6.1
\7/8\.......................... 7x7x19........... 9.3 7.6 5.4 14.0 11.0 8.1
1.............................. 7x7x19........... 12.0 9.7 6.9 18.0 14.0 10.0
1\1/8\......................... 7x7x19........... 14.0 12.0 8.2 21.0 17.0 12.0
1\1/4\......................... 7x7x19........... 17.0 14.0 9.9 26.0 21.0 15.0
\3/4\.......................... 7x6x19 IWRC...... 6.6 5.4 3.8 9.9 8.0 5.7
\7/8\.......................... 7x6x19 IWRC...... 8.7 7.1 5.0 13.0 11.0 7.5
1.............................. 7x6x19 IWRC...... 11.0 9.0 6.4 17.0 13.0 9.6
1\1/8\......................... 7x6x19 IWRC...... 13.0 11.0 7.7 20.0 16.0 11.0
1\1/4\......................... 7x6x19 IWRC...... 16.0 13.0 9.2 24.0 20.0 14.0
1\5/16\........................ 7x6x19 IWRC...... 17.0 14.0 10.0 26.0 21.0 15.0
1\3/8\......................... 7x6x19 IWRC...... 19.0 15.0 11.0 28.0 23.0 16.0
1\1/2\......................... 7x6x19 IWRC...... 22.0 18.0 13.0 33.0 27.0 19.0
----------------------------------------------------------------------------------------------------------------
\1\ Vertical angles.
\2\ Horizontal angles.
Table H-10--Rated Capacities for 2-Leg and 3-Leg Bridle Slings
8-Part and 6-Part Braided Rope
6x7 and 6x19 Construction Improved Plow Steel Grade Rope
7x7 Construction Galvanized Aircraft Grade Rope
----------------------------------------------------------------------------------------------------------------
Rope Rated capacities, tons (2,000 lb.)
----------------------------------------------------------------------------------------------------------------
2-leg bridle slings 3-leg bridle slings
--------------------------------------------------------------------------------------------
30[deg] \1\ 45[deg] angle 60[deg] \1\ 30[deg] \1\ 45[deg] angle 60[deg] \1\
Dia. (60[deg]) \2\ ---------------- (30[deg]) \2\ (60[deg]) \2\ --------------- (30[deg])
(inches) Constr. ---------------- -------------------------------- \2\
6- -------------
8-Part 6-Part 8-Part 6-Part 8-Part 6-Part 8-Part 6-Part 8-Part Part 8- 6-
Part Part
----------------------------------------------------------------------------------------------------------------
\3/32\ 6x7 0.74 0.55 0.60 0.45 0.42 0.32 1.1 0.83 0.90 0.68 0.64 0.48
\1/8\ 6x7 1.3 0.98 1.1 0.80 0.76 0.57 2.0 1.5 1.6 1.2 1.1 0.85
\3/16\ 6x7 2.9 2.2 2.4 1.8 1.7 1.3 4.4 3.3 3.6 2.7 2.5 1.9
\3/32\ 7x7 0.89 0.67 0.72 0.55 0.51 0.39 1.3 1.0 1.1 0.82 0.77 0.58
\1/8\ 7x7 1.6 1.2 1.3 1.0 0.95 0.71 2.5 1.8 2.0 1.5 1.4 1.1
\3/16\ 7x7 3.6 2.7 2.9 2.2 2.1 1.5 5.4 4.0 4.4 3.3 3.1 2.3
\3/16\ 6x19 3.0 2.2 2.4 1.8 1.7 1.3 4.5 3.4 3.7 2.8 2.6 1.9
\1/4\ 6x19 5.3 4.0 4.3 3.2 3.1 2.3 8.0 6.0 6.5 4.9 4.6 3.4
\5/16\ 6x19 8.3 6.2 6.7 5.0 4.8 3.6 12.0 9.3 10.0 7.6 7.1 5.4
\3/8\ 6x19 12.0 8.9 9.7 7.2 6.8 5.1 18.0 13.0 14.0 11.0 10.0 7.7
\7/16\ 6x19 16.0 12.0 13.0 9.8 9.3 6.9 24.0 18.0 20.0 15.0 14.0 10.0
\1/2\ 6x19 21.0 15.0 17.0 13.0 12.0 9.0 31.0 23.0 25.0 19.0 18.0 13.0
\9/16\ 6x19 26.0 20.0 21.0 16.0 15.0 11.0 39.0 29.0 32.0 24.0 23.0 17.0
\5/8\ 6x19 32.0 24.0 26.0 20.0 19.0 14.0 48.0 36.0 40.0 30.0 28.0 21.0
\3/4\ 6x19 46.0 35.0 38.0 28.0 27.0 20.0 69.0 52.0 56.0 42.0 40.0 30.0
\7/8\ 6x19 62.0 47.0 51.0 38.0 36.0 27.0 94.0 70.0 76.0 57.0 54.0 40.0
1 6x19 81.0 61.0 66.0 50.0 47.0 35.0 22.0 91.0 99.0 74.0 70.0 53.0
----------------------------------------------------------------------------------------------------------------
\1\ Vertical angles.
\2\ Horizontal angles.
Table H-11--Rated Capacities for Strand Laid Grommet--Hand Tucked
Improved Plow Steel Grade Rope
------------------------------------------------------------------------
Rope body Rated capacities, tons (2,000 lb.)
------------------------------------------------------------------------
Vertical
Dia. (inches) Constr. Vertical Choker basket \1\
------------------------------------------------------------------------
\1/4\ 7x19 0.85 0.64 1.7
\5/16\ 7x19 1.3 1.0 2.6
\3/8\ 7x19 1.9 1.4 3.8
\7/16\ 7x19 2.6 1.9 5.2
\1/2\ 7x19 3.3 2.5 6.7
\9/16\ 7x19 4.2 3.1 8.4
[[Page 221]]
\5/8\ 7x19 5.2 3.9 10.00
\3/4\ 7x19 7.4 5.6 15.0
\7/8\ 7x19 10.0 7.5 20.0
1 7x19 13.0 9.7 26.0
1\1/8\ 7x19 16.0 12.0 32.0
1\1/4\ 7x37 18.0 14.0 37.0
1\3/8\ 7x37 22.0 16.0 44.0
1\1/2\ 7x37 26.0 19.0 52.0
------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio is 5 or greater where:
D=Diameter of curvature around which rope is bent. d=Diameter of rope
body.
Table H-12--Rated Capacities for Cable Laid Grommet--Hand Tucked
7x6x7 and 7x6x19 Construction Improved Plow Steel Grade Rope
7x7x7 Construction Galvanized Aircraft Grade Rope
------------------------------------------------------------------------
Cable body Rated capacities, tons (2,000 lb.)
------------------------------------------------------------------------
Vertical
Dia. (inches) Constr. Vertical Choker basket \1\
------------------------------------------------------------------------
\3/8\ 7x6x7 1.3 0.95 2.5
\9/16\ 7x6x7 2.8 2.1 5.6
\5/8\ 7x6x7 3.8 2.8 7.6
\3/8\ 7x7x7 1.6 1.2 3.2
\9/16\ 7x7x7 3.5 2.6 6.9
\5/8\ 7x7x7 4.5 3.4 9.0
\5/8\ 7x6x19 3.9 3.0 7.9
\3/4\ 7x6x19 5.1 3.8 10.0
\15/16\ 7x6x19 7.9 5.9 16.0
1\1/8\ 7x6x19 11.0 8.4 22.0
1\5/16\ 7x6x19 15.0 11.0 30.0
1\1/2\ 7x6x19 19.0 14.0 39.0
1\11/16\ 7x6x19 24.0 18.0 49.0
1\7/8\ 7x6x19 30.0 22.0 60.0
2\1/4\ 7x6x19 42.0 31.0 84.0
2\5/8\ 7x6x19 56.0 42.0 112.0
------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio is 5 or greater where:
D=Diameter of curvature around which cable body is bent. d=Diameter of
cable body.
Table H-13--Rated Capacities for Strand Laid Endless Slings-Mechanical
Joint
Improved Plow Steel Grade Rope
------------------------------------------------------------------------
Rope body Rated capacities, tons (2,000 lb.)
------------------------------------------------------------------------
Vertical
Dia. (inches) Constr. Vertical Choker basket \1\
------------------------------------------------------------------------
\1/4\ \2\ 6x19 0.92 0.69 1.8
\3/8\ \2\ 6x19 2.0 1.5 4.1
\1/2\ \2\ 6x19 3.6 2.7 7.2
\5/8\ \2\ 6x19 5.6 4.2 11.0
\3/4\ \2\ 6x19 8.0 6.0 16.0
\7/8\ \2\ 6x19 11.0 8.1 21.0
1 \2\ 6x19 14.0 10.0 28.0
1\1/8\ \2\ 6x19 18.0 13.0 35.0
1\1/4\ \2\ 6x37 21.0 15.0 41.0
1\3/8\ \2\ 6x37 25.0 19.0 50.0
1\1/2\ \2\ 6x37 29.0 22.0 59.0
------------------------------------------------------------------------
\1\ These values only apply when the D/d ratio is 5 or greater where:
D=Diameter of curvature around which rope is bent. d=Diameter of rope
body.
\2\ IWRC.
Table H-14--Rated Capacities For Cable Laid Endless Slings-Mechanical
Joint
7x7x7 and 7x7x19 Construction Galvanized Aircraft Grade Rope 7x6x19 IWRC
Construction Improved Plow Steel Grade Rope
------------------------------------------------------------------------
Cable body Rated capacities, tons (2,000 lb.)
------------------------------------------------------------------------
Vertical
Dia. (inches) Constr. Vertical Choker basket \1\
------------------------------------------------------------------------
\1/4\ 7x7x7 0.83 0.62 1.6
\3/8\ 7x7x7 1.8 1.3 3.5
\1/2\ 7x7x7 3.0 2.3 6.1
\5/8\ 7x7x7 4.5 3.4 9.1
\3/4\ 7x7x7 6.3 4.7 12.0
\5/8\ 7x7x19 4.7 3.5 9.5
\3/4\ 7x7x19 6.7 5.0 13.0
\7/8\ 7x7x19 8.9 6.6 18.0
1 7x7x19 11.0 8.5 22.0
1\1/8\ 7x7x19 14.0 10.0 28.0
1\1/4\ 7x7x19 17.0 12.0 33.0
\3/4\ \2\ 7x6x19 6.2 4.7 12.0
\7/8\ \2\ 7x6x19 8.3 6.2 16.0
1 \2\ 7x6x19 10.0 7.9 21.0
1\1/8\ \2\ 7x6x19 13.0 9.7 26.0
1\1/4\ \2\ 7x6x19 16.0 12.0 31.0
1\3/8\ \2\ 7x6x19 18.0 14.0 37.0
1\1/2\ \2\ 7x6x19 22.0 16.0 43.0
------------------------------------------------------------------------
\1\ These values only apply when the D/d value is 5 or greater where:
D=Diameter of curvature around which cable body is bent. d=Diameter of
cable body.
\2\ IWRC.
[[Page 222]]
Table H-15--Manila Rope Slings
[Angle of rope to vertical shown in parentheses]
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Rated capacity in pounds (safety factor=5)
----------------------------------------------------------------------------------------------------------------------------------------------------------
Rope Nominal Minimum Eye and eye sling Endless sling
diameter weight per breaking ----------------------------------------------------------------------------------------------------------------------------------------------------------
nominal in 100 ft. in strength in Basket hitch; angle of rope to horizontal Basket hitch; angle of rope to horizontal
inches pounds pounds Vertical Choker ------------------------------------------------------ Vertical Choker --------------------------------------------------
hitch hitch 90[deg] 60[deg] 45[deg] 30[deg] hitch hitch 90[deg] 60[deg] 45[deg] 30[deg]
(0[deg]) (30[deg]) (45[deg]) (60[deg]) (0[deg]) (30[deg]) (45[deg]) (60[deg])
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1/2\ 7.5 2,650 550 250 1,100 900 750 550 950 500 1,900 1,700 1,400 950
\9/16\ 10.4 3,450 700 350 1,400 1,200 1,000 700 1,200 600 2,500 2,200 1,800 1,200
\5/8\ 13.3 4,400 900 450 1,800 1,500 1,200 900 1,600 800 3,200 2,700 2,200 1,600
\3/4\ 16.7 5,400 1,100 550 2,200 1,900 1,500 1,100 2,000 950 3,900 3,400 2,800 2,000
\13/16\ 19.5 6,500 1,300 650 2,600 2,300 1,800 1,300 2,300 1,200 4,700 4,100 3,300 2,300
\7/8\ 22.5 7,700 1,500 750 3,100 2,700 2,200 1,500 2,800 1,400 5,600 4,800 3,900 2,800
1 27.0 9,000 1,800 900 3,600 3,100 2,600 1,800 3,200 1,600 6,500 5,600 4,600 3,200
1\1/16\ 31.3 10,500 2,100 1,100 4,200 3,600 3,000 2,100 3,800 1,900 7,600 6,600 5,400 3,800
1\1/8\ 36.0 12,000 2,400 1,200 4,800 4,200 3,400 2,400 4,300 2,200 8,600 7,500 6,100 4,300
1\1/4\ 41.7 13,500 2,700 1,400 5,400 4,700 3,800 2,700 4,900 2,400 9,700 8,400 6,900 4,900
1\5/16\ 47.9 15,000 3,000 1,500 6,000 5,200 4,300 3,000 5,400 2,700 11,000 9,400 7,700 5,400
1\1/2\ 59.9 18,500 3,700 1,850 7,400 6,400 5,200 3,700 6,700 3,300 13,500 11,500 9,400 6,700
1\5/8\ 74.6 22,500 4,500 2,300 9,000 7,800 6,400 4,500 8,100 4,100 16,000 14,000 11,500 8,000
1\3/4\ 89.3 26,500 5,300 2,700 10,500 9,200 7,500 5,300 9,500 4,800 19,000 16,500 13,500 9,500
2 107.5 31,000 6,200 3,100 12,500 10,500 8,800 6,200 11,000 5,600 22,500 19,500 16,000 11,000
2\1/3\ 125.0 36,000 7,200 3,600 14,500 12,500 10,000 7,200 13,000 6,500 26,000 22,500 18,500 13,000
2\1/4\ 146.0 41,000 8,200 4,100 16,500 14,000 11,500 8,200 15,000 7,400 29,500 25,500 21,000 15,000
2\1/2\ 166.7 46.500 9,300 4,700 18,500 16,000 13,000 9,300 16,500 8,400 33,500 29,000 23,500 16,500
2\5/8\ 190.8 52,000 10,500 5,200 21,000 18,000 14,500 10,500 18,500 9,500 37,500 32,500 26,500 18,500
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Table H-16--Nylon Rope Slings
[Angle of rope to vertical shown in parentheses]
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Rated capacity in pounds (safety factor=9)
----------------------------------------------------------------------------------------------------------------------------------------------------------
Rope Nominal Minimum Eye and eye sling Endless sling
diameter weight per breaking ----------------------------------------------------------------------------------------------------------------------------------------------------------
nominal in 100 ft. in strength in Basket hitch; angle of rope to horizontal Basket hitch; angle of rope to horizontal
inches pounds pounds Vertical Choker ------------------------------------------------------ Vertical Choker --------------------------------------------------
hitch hitch 90[deg] 60[deg] 45[deg] 30[deg] hitch hitch 90[deg] 60[deg] 45[deg] 30[deg]
(0[deg]) (30[deg]) (45[deg]) (60[deg]) (0[deg]) (30[deg]) (45[deg]) (60[deg])
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1/2\ 6.5 6,080 700 350 1,400 1,200 950 700 1,200 600 2,400 2,100 1,700 1,200
\9/16\ 8.3 7,600 850 400 1,700 1,500 1,200 850 1,500 750 3,000 2,600 2,200 1,500
\5/8\ 10.5 9,880 1,100 550 2,200 1,900 1,600 1,100 2,000 1,000 4,000 3,400 2,800 2,000
\3/4\ 14.5 13,490 1,500 750 3,000 2,600 2,100 1,500 2,700 1,400 5,400 4,700 3,800 2,700
\13/16\ 17.0 16,150 1,800 900 3,600 3,100 2,600 1,800 3,200 1,600 6,400 5,600 4,600 3,200
\7/8\ 20.0 19,000 2,100 1,100 4,200 3,700 3,000 2,100 3,800 1,900 7,600 6,600 5,400 3,800
1 26.0 23,750 2,600 1,300 5,300 4,600 3,700 2,600 4,800 2,400 9,500 8,200 6,700 4,800
1\1/16\ 29.0 27,360 3,000 1,500 6,100 5,300 4,300 3,000 5,500 2,700 11,000 9,500 7,700 5,500
[[Page 223]]
1\1/8\ 34.0 31,350 3,500 1,700 7,000 6,000 5,000 3,500 6,300 3,100 12,500 11,000 8,900 6,300
1\1/4\ 40.0 35,625 4,000 2,000 7,900 6,900 5,600 4,000 7,100 3,600 14,500 12,500 10,000 7,100
1\5/16\ 45.0 40,850 4,500 2,300 9,100 7,900 6,400 4,500 8,200 4,100 16,500 14,000 12,000 8,200
1\1/2\ 55.0 50,350 5,600 2,800 11,000 9,700 7,900 5,600 10,000 5,000 20,000 17,500 14,000 10,000
1\5/8\ 68.0 61,750 6,900 3,400 13,500 12,000 9,700 6,900 12,500 6,200 24,500 21,500 17,500 12,500
1\3/4\ 83.0 74,100 8,200 4,100 16,500 14,500 11,500 8,200 15,000 7,400 29,500 27,500 21,000 15,000
2 95.0 87,400 9,700 4,900 19,500 17,000 13,500 9,700 17,500 8,700 35,000 30,500 24,500 17,500
2\1/8\ 109.0 100,700 11,000 5,600 22,500 19,500 16,000 11,000 20,000 10,000 40,500 35,000 28,500 20,000
2\1/4\ 129.0 118,750 13,000 6,600 26,500 23,000 18,500 13,000 24,000 12,000 47,500 41,000 33,500 24,000
2\1/2\ 149.0 133,000 15,000 7,400 29,500 25,500 21,000 15,000 26,500 13,500 53,000 46,000 37,500 26,500
2\5/8\ 168.0 153,900 17,100 8,600 34,000 29,500 24,000 17,000 31,000 15,500 61,500 53,500 43,500 31,000
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Table H-17--Polyester Rope Slings
[Angle of rope to vertical shown in parentheses]
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Rated capacity in pounds (safety factor=9)
----------------------------------------------------------------------------------------------------------------------------------------------------------
Rope Nominal Minimum Eye and eye sling Endless sling
diameter weight per breaking ----------------------------------------------------------------------------------------------------------------------------------------------------------
nominal in 100 ft. in strength in Basket hitch; angle of rope to horizontal Basket hitch; angle of rope to horizontal
inches pounds pounds Vertical Choker ------------------------------------------------------ Vertical Choker --------------------------------------------------
hitch hitch 90[deg] 60[deg] 45[deg] 30[deg] hitch hitch 90[deg] 60[deg] 45[deg] 30[deg]
(0[deg]) (30[deg]) (45[deg]) (60[deg]) (0[deg]) (30[deg]) (45[deg]) (60[deg])
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1/2\ 8.0 6,080 700 350 1,400 1,200 950 700 1,200 600 2,400 2,100 1,700 1,200
\9/16\ 10.2 7,600 850 400 1,700 1,500 1,200 850 1,500 750 3,000 2,600 2,200 1,500
\5/8\ 13.0 9,500 1,100 550 2,100 1,800 1,500 1,100 1,900 950 3,800 3,300 2,700 1,900
\3/4\ 17.5 11,875 1,300 650 2,600 2,300 1,900 1,300 2,400 1,200 4,800 4,100 3,400 2,400
\13/16\ 21.0 14,725 1,600 800 3,300 2,800 2,300 1,600 2,900 1,500 5,900 5,100 4,200 2,900
\7/8\ 25.0 17,100 1,900 950 3,800 3,300 2,700 1,900 3,400 1,700 6,800 5,900 4,800 3,400
1 30.5 20,900 2,300 1,200 4,600 4,000 3,300 2,300 4,200 2,100 8,400 7,200 5,900 4,200
1\1/16\ 34.5 24,225 2,700 1,300 5,400 4,700 3,800 2,700 4,800 2,400 9,700 8,400 6,900 4,800
1\1/8\ 40.0 28,025 3,100 1,600 6,200 5,400 4,400 3,100 5,600 2,800 11,000 9,700 7,900 5,600
1\1/4\ 46.3 31,540 3,500 1,800 7,000 6,100 5,000 3,500 6,300 3,200 12,500 11,000 8,900 6,300
1\5/16\ 52.5 35,625 4,000 2,000 7,900 6,900 5,600 4,000 7,100 3,600 14,500 12,500 10,000 7,100
1\1/2\ 66.8 44,460 4,900 2,500 9,900 8,600 7,000 4,900 8,900 4,400 18,000 15,500 12,500 8,900
1\5/8\ 82.0 54,150 6,000 3,000 12,000 10,400 8,500 6,000 11,000 5,400 21,500 19,000 15,500 11,000
1\3/4\ 98.0 64,410 7,200 3,600 14,500 12,500 10,000 7,200 13,000 6,400 26,000 22,500 18,000 13,000
2 118.0 76,000 8,400 4,200 17,000 14,500 12,000 8,400 15,000 7,600 30,500 26,500 21,500 15,000
2\1/8\ 135.0 87,400 9,700 4,900 19,500 17,000 13,500 9,700 17,500 8,700 35,000 30,500 24,500 17,500
2\1/4\ 157.0 101,650 11,500 5,700 22,500 19,500 16,000 11,500 20,500 10,000 40,500 35,000 29,000 20,500
2\1/2\ 181.0 115,900 13,000 6,400 26,000 22,500 18,000 13,000 23,000 11,500 46,500 40,000 33,000 23,000
2\5/8\ 205.0 130,150 14,500 7,200 29,000 25,000 20,500 14,500 26,000 13,000 52,000 45,000 37,000 26,000
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[[Page 224]]
Table H-18--Polypropylene Rope Slings
[Angle of rope to vertical shown in parentheses]
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Rated capacity in pounds (safety factor=6)
----------------------------------------------------------------------------------------------------------------------------------------------------------
Rope Nominal Minimum Eye and eye sling Endless sling
diameter weight per breaking ----------------------------------------------------------------------------------------------------------------------------------------------------------
nominal in 100 ft. in strength in Basket hitch; angle of rope to horizontal Basket hitch; angle of rope to horizontal
inches pounds pounds Vertical Choker ------------------------------------------------------ Vertical Choker --------------------------------------------------
hitch hitch 90[deg] 60[deg] 45[deg] 30[deg] hitch hitch 90[deg] 60[deg] 45[deg] 30[deg]
(0[deg]) (30[deg]) (45[deg]) (60[deg]) (0[deg]) (30[deg]) (45[deg]) (60[deg])
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
\1/2\ 4.7 3,990 650 350 1,300 1,200 950 650 1,200 600 2,400 2,100 1,700 1,200
\9/16\ 6.1 4,845 800 400 1,600 1,400 1,100 800 1,500 750 2,900 2,500 2,100 1,500
\5/8\ 7.5 5,890 1,000 500 2,000 1,700 1,400 1,000 1,800 900 3,500 3,100 2,500 1,800
\3/4\ 10.7 8,075 1,300 700 2,700 2,300 1,900 1,300 2,400 1,200 4,900 4,200 3,400 2,400
\13/16\ 12.7 9,405 1,600 800 3,100 2,700 2,200 1,600 2,800 1,400 5,600 4,900 4,000 2,800
\7/8\ 15.0 10,925 1,800 900 3,600 3,200 2,600 1,800 3,300 1,600 6,600 5,700 4,600 3,300
1 18.0 13,300 2,200 1,100 4,400 3,800 3,100 2,200 4,000 2,000 8,000 6,900 5,600 4,000
1\1/16\ 20.4 15,200 2,500 1,300 5,100 4,400 3,600 2,500 4,600 2,300 9,100 7,900 6,500 4,600
1\1/8\ 23.7 17,385 2,900 1,500 5,800 5,000 4,100 2,900 5,200 2,600 10,500 9,000 7,400 5,200
1\1/4\ 27.0 19,950 3,300 1,700 6,700 5,800 4,700 3,300 6,000 3,000 12,000 10,500 8,500 6,000
1\5/16\ 30.5 22,325 3,700 1,900 7,400 6,400 5,300 3,700 6,700 3,400 13,500 11,500 9,500 6,700
1\1/2\ 38.5 28,215 4,700 2,400 9,400 8,100 6,700 4,700 8,500 4,200 17,000 14,500 12,000 8,500
1\5/8\ 47.5 34,200 5,700 2,900 11,500 9,900 8,100 5,700 10,500 5,100 20,500 18,000 14,500 10,500
1\3/4\ 57.0 40,850 6,800 3,400 13,500 12,000 9,600 6,800 12,500 6,100 24,500 21,000 17,500 12,500
2 69.0 49,400 8,200 4,100 16,500 14,500 11,500 8,200 15,000 7,400 29,500 25,500 21,000 15,000
2\1/8\ 80.0 57,950 9,700 4,800 19,500 16,500 13,500 9,700 17,500 8,700 35,000 30,100 24,500 17,500
2\1/4\ 92.0 65,550 11,000 5,500 22,000 19,000 15,500 11,000 19,500 9,900 39,500 34,000 28,000 19,500
2\1/2\ 107.0 76,000 12,500 6,300 25,500 22,000 18,000 12,500 23,000 11,500 45,500 39,500 32,500 23,000
2\5/8\ 120.0 85,500 14,500 7,100 28,500 24,500 20,000 14,500 25,500 13,000 51,500 44,500 36,500 25,500
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[[Page 225]]
Table H-19--Safe Working Loads for Shackles
[In tons of 2,000 pounds]
------------------------------------------------------------------------
Pin Safe
Material size (inches diameter working
(inches) load
------------------------------------------------------------------------
\1/2\........................................... \5/8\ 1.4
\5/8\........................................... \3/4\ 2.2
\3/4\........................................... \7/8\ 3.2
\7/8\........................................... 1 4.3
1............................................... 1\1/8\ 5.6
1\1/8\.......................................... 1\1/4\ 6.7
1\1/4\.......................................... 1\3/8\ 8.2
1\3/8\.......................................... 1\1/2\ 10.0
1\1/2\.......................................... 1\5/8\ 11.9
1\3/4\.......................................... 2 16.2
2............................................... 2\1/4\ 21.2
------------------------------------------------------------------------
Table H-20--Number and Spacing of U-Bolt Wire Rope Clips
------------------------------------------------------------------------
Number of clips
Improved plow steel, rope diameter -------------------- Minimum
(inches) Drop Other spacing
forged material (inches)
------------------------------------------------------------------------
\1/2\................................... 3 4 3
\5/8\................................... 3 4 3\3/4\
\3/4\................................... 4 5 4\1/2\
\7/8\................................... 4 5 5\1/4\
1....................................... 5 6 6
1\1/8\.................................. 6 6 6\3/4\
1\1/4\.................................. 6 7 7\1/2\
1\3/8\.................................. 7 7 8\1/4\
1\1/2\.................................. 7 8 9
------------------------------------------------------------------------
[44 FR 8577, Feb. 9, 1979; 44 FR 20940, Apr. 6, 1979, as amended at 58
FR 35173, June 30, 1993]
