 |
Transmission Roller Chains for Oil-Field Drilling Rigs
 
| Chain No. |
Pitch |
Roller dia
(max) |
Roller link inside width
(min) |
Pin dia
(max) |
Pin length |
Height of inn plate |
Depth of plate |
Min breaking load
MIN |
Endurance limit load MIN |
Aver wt |
| API Spec 7F |
p |
p |
d1 |
b1 |
d2 |
b3 |
h1 |
S |
Q |
Q1 |
q |
| in |
mm |
mm |
mm |
mm |
mm |
mm |
mm |
N |
N |
kg/m |
| 80-1 |
1" |
25.40 |
15.87 |
15.75 |
7.94 |
37.55 |
24.13 |
3.18 |
55600 |
12055 |
2.6 |
| 100-1 |
11/4" |
31.75 |
19.05 |
18.90 |
9.54 |
44.26 |
30.18 |
3.96 |
86840 |
18460 |
3.8 |
| 120-1 |
11/2" |
38.10 |
22.22 |
25.23 |
11.11 |
55.44 |
36.20 |
4.75 |
125100 |
25978 |
5.6 |
| 140-1 |
13/4" |
44.45 |
25.40 |
25.23 |
12.71 |
60.55 |
42.24 |
5.56 |
170270 |
34340 |
7.5 |
| 160-1 |
2" |
50.80 |
28.57 |
31.55 |
14.29 |
70.00 |
48.26 |
6.35 |
222400 |
43771 |
9.8 |
| 180-1 |
21/4" |
57.15 |
35.71 |
35.49 |
17.46 |
77.7 |
54.28 |
7.14 |
281570 |
53823 |
13.6 |
| 200-1 |
21/2" |
63.50 |
39.67 |
37.85 |
19.85 |
84.50 |
60.33 |
7.92 |
347410 |
64499 |
16.5 |
| 240-1 |
3" |
76.20 |
47.62 |
47.35 |
23.81 |
102.2 |
72.39 |
9.53 |
500400 |
86296 |
22.6 |
| Chain No. |
Strand |
Lateral Pitch
pt |
Min breaking load MIN |
Aver wt |
| API Spec 7F |
N |
mm |
Q |
q |
| N/kgf |
kg/m |
| 80-N |
1,2,3,4,5,6,8 |
29.29 |
N x Q |
N x q |
| 100-N |
1,2,3,4,5,6,8 |
35.76 |
N x Q |
N x q |
| 120-N |
1,2,3,4,6,8,10 |
45.44 |
N x Q |
N x q |
| 140-N |
1,2,3,4,5,6,8,10 |
48.87 |
N x Q |
N x q |
| 160-N |
1,2,3,4,5,6,8 |
58.55 |
N x Q |
N x q |
| 180-N |
1,2,3,4 |
65.84 |
N x Q |
N x q |
| 200-N |
1,2,3,4 |
71.55 |
N x Q |
N x q |
| 240-N |
123 |
87.83 |
N x Q |
N x q |
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