Grommets

Rigging-Accessories-Header

Mechanical Splice Grommets

Grommets either have a wire rope body or a body made up of six strands which are laid helically around a strand core. Either a hand-splice or a mechanical splice then forms an endless sling body.

STRAIGHT

or vertical, attachment is simply using a sling to connect a lifting hook to a load. Full-rated lifting capacity of the sling may be utilized, but must not be exceeded. A tagline should be used to prevent load rotation which may damage the sling. When two or more slings are attached to the same lifting hook, the total hitch becomes, in effect, a lifting bridle, and the load is distributed equally among the individual slings.

Mechanical-Splice-Grommets-straight-grommet

CHOKER

hitches reduce the lifting capability of a sling, since this method of rigging affects ability of the wire components to adjust during the lift. A choker is used when the load will not be seriously damaged by the sling body-or the sling damaged by the load, and when the lift requires the sling to snug up against the load. The diameter of the bend where the sling contacts the load should keep the point of choke against the sling body – never against a splice or the base of the eye. When a choke is used at an angle of less than 120 the sling rated capacity must be adjusted downward.

Mechanical-Splice-Grommets-CHOKER-grommet

BASKET

hitches distribute a load equally between the two legs of a sling-within limitations described below. Capacity of a sling used in a basket is affected by the bend, or curvature, where the sling body comes in contact with the load-just as any wire rope is affected and limited by bending actions, as over a sheave.

Mechanical-Splice-Grommets-BASKET-grommet

rope
Vertical
Choker
Vertical
30-degree
45-degree
60-degree
ROPE
DIAMETER
(In Inches)
VERTICAL
CHOKER
VERTICAL
BASKET
30-DEGREE
45-DEGREE
60-DEGREE
1/4
1.0
0.71
2.0
1.0
1.4
1.7
5/16
1.6
1.1
3.1
1.6
2.2
2.7
3/8
2.3
1.6
4.5
2.3
3.2
3.9
7/16
3.1
2.1
6.1
3.1
4.3
5.3
1/2
3.9
2.8
7.9
3.9
5.6
6.8
9/16
5.0
3.5
10
5.0
7.0
8.6
5/8
6.1
4.3
12
6.1
8.7
11
3/4
8.8
6.2
18
8.8
12
15
7/8
12
8.3
24
12
17
21
1
15
11
31
15
22
27
1 1/8
19
14
39
19
27
34
1 1/4
24
17
48
24
34
41
1 3/8
29
20
57
29
41
50
1 1/2
34
24
68
34
48
59
1 5/8
39
28
79
39
56
68
1 3/4
46
32
91
46
65
79
1 7/8
52
37
104
52
74
90
2
59
41
118
59
83
102
2 1/8
66
46
132
66
93
114
2 1/4
74
52
148
74
104
128
2 3/8
82
57
164
82
116
142
2 1/2
90
63
180
90
127
156