Tram Chain
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Tram chains are based on standard transmission chain construction but used in feeder applications on continuous mining machinery. The chains are operated in twin strand format with flight bars making the two strands common. Typical pitches are 2.00 “(50.8 mm) and 2.50” (63.50 mm). Materials are enhanced to ensure higher strengths and wear resistance.
Tram Chain – style A
Tram Chain – style B
|
Tram Chains |
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|
Chain Number |
Pitch |
Style |
Chain Width |
Inside |
Pins |
Bushings |
Rollers |
Sidedbars |
Approx. |
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|
Overall |
Head to CL |
End to CL |
Diameter |
Material |
Diameter |
Material |
Diameter |
Material |
Thickness |
Height |
MateriAl |
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|
F+F1 |
F |
F1 |
L |
D6 |
D5 |
D2 |
T |
H |
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|
inches |
inches |
lbs/ft |
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|
JKM2 |
2.00 |
A |
3.38 |
1.44 |
1.72 |
1.25 |
0.72 |
AHT |
1.13 |
ACH |
– |
– |
0.31 |
1.88 |
AHT |
8.3 |
|
JKM645 |
2.50 |
B |
3.72 |
1.69 |
2.00 |
1.50 |
0.88 |
AHT |
1.13 |
ACH |
1.56 |
AHT |
0.38 |
2.13 |
AHT |
13.5 |
|
JKM6414 |
2.50 |
B |
4.13 |
1.91 |
2.00 |
1.50 |
0.88 |
AHT |
1.13 |
ACH |
1.56 |
AHT |
0.44 |
2.13 |
AHT |
14.5 |
Material AHT = alloy heat treated ACH = alloy case hardened.
JKM6414 sidebar thickness on roller links is .50” and pin link .44”
JKM2 is a bushing type chain and does not have rollers
