Thimbles

The most common way of manufacturing wire rope slings is with ferrules and loops at both ends. The loops of the wire rope sling are the contact point between the lifted load and the sling itself. When more structural strength is needed in the contact point of the wire rope sling, the use of a metal thimble is recommended.

This is so, because while using normal loops, the possibility of injuring the sling is significantly higher than while using reinforced loops with metal thimbles. When there is no thimble, the wire rope sling loop sometimes bends under the load and that may lead to faster wear out of the sling itself. The thimble helps the loop to keep its initial and original curve.

The thimble also protects the strands of the wire rope sling from injuries and wear outs. When using thimbles actually the lifted load has no traction with the surface of the wire rope.

Bottom line, we can say that the use of thimbles assures significantly longer exploitation life of the steel wire rope sling.

Mainly, there are two types of thimbles used in the EU.

Кауши за стоманени въжета ДИН 6899

Standard – according DIN 6899B – suitable for normal conditions

Diameter a b c d e f Weight
mm mm mm mm mm mm mm kg
8 9 15 40 66 14 14 0.18
10 11 17.5 50 82 18 16 0.32
12 13 20 60 98 21 18 0.52
14 16 23.5 70 114 25 20 0.8
16 18 26 80 130 28 16 0.9
18 20 28.5 90 145 31 18 1.21
20 22 31 100 161 35 20 1.61
22 24 33.5 110 177 38 22 2.11
24 26 36 120 193 41 24 2.71
26 29 39.5 130 209 44 26 3.55
28 31 42 140 224 47 28 4.2
32 35 47 160 256 53 32 6.3
36 40 53 180 288 59 36 8.84
40 44 58 200 320 65 40 11
44 48 63 220 352 70 44 15
48 53 69 240 384 76 48 20
52 57 74 260 416 81 52 25
56 62 80 280 448 86 56 32
64 70 90 320 512 95 64 46
72 79 101 360 576 104 72 66
80 88 112 400 640 112 80 90
Кауши за стоманени въжета ДИН 3091, плътни

Reinforced thick thimbles, according DIN 3091 – suitable for work in heavy conditions

Diameter a b c d Weight
mm mm mm mm mm kg
2.5 12 19 3 1.25 0.005
3.5 13 21 4 1.25 0.008
4 14 23 5 0.75 0.01
5 16 25 6 0.75 0.016
6 18 28 7 0.75 0.019
7 20 32 8 1 0.03
9 24 38 10 1.25 0.047
11 28 45 12 1.5 0.068
13 30 48 13 1.5 0.08
13 32 51 14 1.75 0.1
15 36 58 16 2 0.145
16 38 61 17 2 0.18
17 40 64 18 2 0.2
18 45 72 20 2.25 0.29
20 50 80 22 2.5 0.32
22 56 90 24 3 0.47
24 62 99 26 3.5 0.59
26 70 112 28 3.5 0.8
28 75 120 30 3.5 1.1
30 80 128 32 3.5 1.23
32 95 152 34 3.5 1.56
34 100 160 36 3.5 1.76
36 110 176 38 3.5 1.92
38 115 184 40 4 2.92
40 120 192 42 4 3.2
42 150 240 45 6.5 3.64
46 120 220 48 6 5.75
48 120 240 50 7 6.2
52 145 275 54 8 6.9
56 145 305 58 9 8.5