CHAINS
roller chains, cycle chains - bicycle components GS-27:1/2" X 1/8": Roller chains made from medium carbon steel heat treated in black-blue finish in 72/78/92/104/108/112/114 Links or in 150 Mtrs. rolls.
SIZE
ISO
No.
Pitch
MM
Roller
Dia MM
Width Bet.
Inner Plates MM
Width Over
Bearing Pin
MM
Measuring
Load
Breaking
Load
1/2"X1/8"
081
12.7
7.75
3.30 Min. 
10.2 Max.
13 Kg.
820 Kg.
 
GS-28 :1/2" X 3/32 Roller chains made from medium carbon steel, heat treated in black-blue finish in 108/112/116 links or in 150 Mtrs. rolls. roller chains, cycle chains - bicycle components
SIZE
ISO
No.
Pitch
MM
Roller
Dia
MM
Width Bet.
Inner
Plates MM
Width Over
Bearing Pin
MM
Measuring
Load
Breaking
Load
1/2"X3/32" 
082
12.7
7.75
2.38 Min.
8.2 Max.
13 Kg.
1000 Kg. 
 
chains links - bicycle componentschains links - bicycle components
GS-30 (CHAIN LINKS) Chain connecting links spring clip type.
GS-31 (CHAIN ADJUSTER)
GS-31A Closed ends for 3/8".
GS-31B Open ends for 3/8", 11mm & 12mm,Threads : 1/4" X 26TPI or 6mm X 1mm pitch, ZP finish.
 open ends chain adjuster, close ends chain adjuster - bicycle components
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