|
Marine Roller Chains manufactured according to GB/T1243-1997
standard(equal to API ISO606-1994)
|
Chain
number
|
Pitch
mm
|
Roller dia
(MAX)
d1
|
Roller link
Inside width
Dia ( MIN)b1
|
Pin dia
(Min)
d2
|
Plate
Depth
b1
|
Lateral
Pitch
Pt
|
Width over inner link
(MAX)
b2
|
Width over bearing pins
|
Min breaking load
(MIN) >/kgf
|
|
Single
Max
b
|
Duplex
Max
b
|
Triplex Max
b
|
Single
|
Duplex
|
Triplex
|
|
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
mm
|
N/kfg
|
N/kfg
|
N/kfg
|
| 16B |
25.40
|
15.88
|
17.02
|
8.28
|
21.08
|
31.88
|
25.45
|
36.1
|
68.0
|
99.9
|
42267/4310
|
84533/8620
|
126800/12930
|
| 20B |
31.75
|
19.05
|
19.56
|
10.19
|
26.42
|
36.45
|
29.01
|
43.2
|
79.7
|
116.1
|
64528/6580
|
129056/13160
|
193583/19740
|
| 24B |
38.10
|
25.40
|
25.40
|
14.63
|
33.40
|
48.36
|
37.92
|
53.4
|
101.8
|
150.2
|
97870/9980
|
195741/19960
|
293611/29940
|
| 28B |
44.45
|
27.94
|
30.99
|
15.90
|
37.08
|
59.56
|
46.58
|
65.1
|
124.7
|
184.3
|
129056/13160
|
258111/26320
|
387167/39480
|
| 32B |
50.80
|
29.21
|
30.99
|
17.81
|
42.29
|
58.55
|
45.57
|
67.4
|
126.0
|
184.5
|
169067/17240
|
338133/34480
|
507200/51720
|
| 40B |
63.50
|
39.37
|
38.10
|
22.89
|
52.96
|
72.29
|
55.75
|
82.6
|
154.9
|
227.2
|
262524/26770
|
525048/53540
|
787572/80310
|
| 48B |
76.20
|
48.26
|
45.72
|
29.24
|
63.88
|
91.21
|
70.56
|
99.1
|
190.4
|
281.6
|
560000/57104
|
1000000/101972 |
1500000/152957 |
| 56B |
88.90
|
53.98
|
53.34
|
34.32
|
77.85
|
106.60
|
81.33
|
114.6
|
221.2
|
|
542700/55340
|
|
|
| 64B |
101.60
|
63.50
|
60.96
|
39.40
|
90.17
|
119.89
|
92.02
|
130.9
|
250.8
|
|
711767/72580
|
|
|
| 72B |
114.30
|
72.39
|
68.58
|
44.48
|
103.63
|
136.27
|
103.81
|
147.4
|
283.7
|
|
898583/91630
|
|
|
48B 56B only used in oceangoing vessels
|
