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Tram Chain

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Tram Chain

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 - drawing

Style A

Tram Chain - style B - drawing

Style B

Tram Chains

Chain Number

Style

Pitch

Rollers

Bushings

Pins

Chain Width

Inside
Width

Sidedbars

Average Weight

Diameter

Material

Diameter

Material

Diameter

Material

Overall

Head
to CL

End
to CL

Thickness

Height

Material

P

D2

D5

D6

F+F2

F

F2

L

S

H

inches

inches

inches

inches

lbs/ft

JKM2

A

2.00

–

–

1.13

ACH

0.72

AHT

3.38

1.44

1.72

1.25

0.31

1.88

AHT

8.3

JKM645

B

2.50

1.56

AHT

1.13

ACH

0.88

AHT

3.72

1.69

2.00

1.50

0.38

2.13

AHT

13.5

JKM6414

B

2.50

1.56

AHT

1.13

ACH

0.88

AHT

4.13

1.91

2.00

1.50

0.44

2.13

AHT

14.5

Material: AHT: alloy heat treated, ACH: alloy case hardened.
JKM6414 sidebar thickness on roller links is 0.50” and pin link 0.44”.
JKM2 is a bushing type chain and does not have rollers.

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