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RO Type Heavy Duty Roller Chain

Tsubaki RO Type Heavy Duty Roller Chain

Tsubaki RO Heavy Duty Roller Chains are designed for use in oil rigs, power shovels and hoists, road-building equipment, and other heavy-duty construction machinery. The use of specially selected alloy steel and heat-treated parts insures a long trouble-free life under severe operating conditions.

RO Roller Chain

 

Dimensions-mm
Chain No.
Pitch P
Roller Dia. R
Inner Width W
RO3140T
44.45
25.40
25.4
RO31613AK
50.80
28.58
32.1
RO3180
57.15
35.70
36.7
RO25H
63.50
31.75
38.1
RO568
77.90
41.28
39.7
BO2512
77.90
31.75
39.7
RO3
78.11
31.75
38.1
RO3H
78.11
31.75
38.1
RO3125
79.38
41.28
39.7
RO1616
88.90
44.45
38.1
RO1338
92.08
53.98
42.4
RO1644A
95.25
44.45
38.1
RO1664A
101.60
57.15
55.9
RO4
103.20
44.45
49.2
RO4HF
103.20
44.45
49.2
RO1245
103.45
45.09
49.2
RO1343
103.89
47.70
49.2
RO1345
103.89
50.80
49.2
RO635
114.30
57.15
52.4
RO1602AA
127.00
63.5
69.9
RO1605AK
127.00
63.5
69.9

 

Dimensions-mm
Chain No.
Link Plate
Pin
Thickness T
Height H
Dia. D
L1 + L2
From Pin Head to C.L. L1
From Pin end to C.L. L2
RO3140T
6.3
43.2
13.97
65.9
30.1
35.8
RO31613AK
7.9
41.3
15.04
79.4
36.5
42.9
RO3180
7.1
54.0
17.45
79.2
37.6
41.6
RO25H
9.5
41.3
15.88
92.1
42.5
49.6
RO568
9.5
57.2
19.05
97.7
43.7
54.0
BO2512
9.5
57.2
19.05
97.7
43.7
54.0
RO3
7.9
38.1
15.88
86.6
39.7
46.9
RO3H
9.5
44.5
16.46
92.5
42.7
49.8
RO3125
9.5
57.2
22.23
98.4
44.4
54.0
RO1616
12.7
57.2
22.23
110.3
50.0
60.3
RO1338
14.3
60.3
23.88
123.3
56.9
66.4
RO1644A
14.3
60.3
23.88
119.0
54.7
64.3
RO1664A
14.3
85.7
30.16
138.3
63.6
74.7
RO4
12.7
57.2
22.23
120.7
55.6
65.1
RO4HF
15.9
60.3
23.88
136.5
63.5
73.0
RO1245
14.3
60.3
23.88
130.2
60.3
69.9
RO1343
14.3
69.9
27.91
131.7
60.3
71.4
RO1345
14.3
69.9
27.91
131.7
60.3
71.4
RO635
14.3
76.2
27.91
134.9
61.9
73.0
RO1602AA
15.9
88.9
31.65
158.7
73.8
84.9
RO1605AK
19.1
88.9
34.93
171.5
80.2
91.3

 

Dimensions-mm
Chain No.
Minimum Tensile Strength kN {kgf}
Approx. Mass kg/m
Number of Links per unit
RO3140T
217 {22,100}
7.7
68
RO31613AK
280 {28,600}
11.3
57
RO3180
324 {33,000}
15.5
65
RO25H
338 {34,500}
13.7
66
RO568
447 {45,600}
17.9
65
BO2512
447 {45,600}
17.2
67
RO3
236 {24,100}
10.5
65
RO3H
338 {34,500}
14.3
65
RO3125
459 {46,800}
18.8
69
RO1616
559b {57,000}
23.9
50
RO1338
722 {73,600}
30.0
50
RO1644A
722 {73,600}
29.3
50
RO1664A
1110 {113,000}
44.5
50
RO4
559 {57,000}
23.9
50
RO4HF
731 {74,500}
23.2
50
RO1245
722 {73,600}
27.2
51
RO1343
902 {92,000}
31.9
50
RO1345
902 {92,000}
32.9
50
RO635
964 {98,300}
38.3
53
RO1602AA
1330 {136,000}
52.3
51
RO1605AK
1560 {159,000}
54.3
50

Chain with induction hardened pin for wear resistance is also available.

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