U-bolt СК and U-bolt СКД are used to form a movable or hinged chain joint in suspension devices of ADSS cables or OPGWs in fastening devices of insulator strings. Shackles CK allow to transfer loads from the shackle with one load type to shackles with adjacent (larger or smaller) row of loads through the chain joint.
Acquiring products of this type is economically profitable, as the cost of manufacturing material (malleable cast iron) is relatively low.
The shackles feature increased resistance to external effects, including mechanical stress, both at rest and during active operation.
Package contents, components of shackle СК
Shackles are U-shaped bent rods, ending on both sides with lugs of a certain diameter:
- Metal rod — 1 pc.
- Bolt with pin — 1 pc.
- nut — 1 pc.
Fig. 1. Schematic view of shackle CK
The shackle rod size, hole (lug) diameter depend on the product type and application conditions.
СКД (with letter Д) — long shackles.
Fig. 2. Schematic view of insulator string attachment with shackle CK
Sizes and specifications of shackle CK
| Denotation |
Dimensions, mm |
Weight, kg |
Min. breaking load, kN (tf) |
| B |
B1 |
D |
d |
d1 |
H |
H1 |
| CK-4-1 |
56 |
15 |
34 |
14 |
10 |
45 |
72 |
0.20 |
40 (4) |
| CK-7-1A |
66 |
17 |
42 |
16 |
14 |
50 |
85 |
0.38 |
70 (7) |
| CK-12-1A |
93 |
23 |
52 |
22 |
18 |
65 |
109 |
0.92 |
120 (12) |
| CK-16-1A |
103 |
26 |
52 |
25 |
20 |
70 |
116 |
1.22 |
160 (16) |
| CK-21-1A |
108 |
29 |
62 |
28 |
24 |
75 |
130 |
1.82 |
210 (21) |
| CK-25-1A |
120 |
34 |
66 |
32 |
26 |
90 |
149 |
2.33 |
250 (25) |
| CK-30-1A |
130 |
38 |
73 |
36 |
28 |
100 |
164.5 |
2.93 |
300 (30) |
| CK-35-1A |
130 |
40 |
78 |
38 |
32 |
100 |
171 |
3.23 |
350 (35) |
| CK-45-1A |
140 |
42 |
88 |
40 |
34 |
100 |
178 |
5.00 |
450 (45) |
| CK-53-1A |
162 |
44 |
92 |
42 |
36 |
110 |
192 |
5.89 |
530 (53) |
| CK-60-1A |
162 |
47 |
97 |
45 |
38 |
125 |
211.5 |
6.73 |
600 (60) |
| CK-75-1A |
182 |
52 |
116 |
50 |
40 |
125 |
223 |
10.91 |
750 (75) |
| CK-90-1A |
195 |
58 |
120 |
56 |
48 |
150 |
258 |
12.20 |
900 (90) |
| CK-110-1A |
215 |
62 |
130 |
60 |
53 |
150 |
268 |
16.38 |
1100 (110) |
| CK-120-1 |
225 |
67 |
145 |
65 |
60 |
180 |
312.5 |
21.75 |
1200 (120) |
| CK-135-1 |
230 |
72 |
154 |
70 |
60 |
180 |
317.0 |
23.20 |
1350 (135) |
| CK-180-1 |
270 |
83 |
176 |
80 |
70 |
220 |
378.0 |
36.00 |
1800 (180) |
| CK-240-1 |
312 |
98 |
205 |
95 |
85 |
250 |
437.5 |
59.30 |
2400 (240) |
| CK-270-1 |
355 |
111 |
188 |
108 |
|
270 |
449.0 |
69.0 |
2700 (270) |
| CK-360-1 |
403 |
128 |
256 |
125 |
95 |
320 |
543.0 |
112.0 |
3600 (360) |
| СКД-10-1 |
83 |
19 |
42 |
18 |
16 |
80 |
117.0 |
0.67 |
100 (10) |
| СКД-12-1 |
93 |
23 |
52 |
22 |
18 |
82 |
126.0 |
1.16 |
120 (12) |
| СКД-16-1 |
103 |
26 |
|
25 |
20 |
105 |
151.0 |
1.36 |
160 (16) |
| СКД-21-1 |
108 |
29 |
62 |
28 |
24 |
115 |
170.0 |
2.0 |
210 (21) |
| СКД-30-1 |
130 |
38 |
73 |
36 |
28 |
120 |
184.5 |
3.10 |
300 (30) |
| СКД-45-1 |
140 |
42 |
88 |
40 |
34 |
170 |
248.0 |
6.03 |
450 (45) |
Sales of products in stock
Our company sells shackles in stock for chain joining clamps or insulator strings. Products are delivered from warehouses in Saint Petersburg and Moscow. We deliver products to transport terminals at these cities at our expense.
