IBLS Safety Chain Standards

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Layout

Couple and Safety Chain Layout
ScaleGaugeCouple Height (CH)Chain Offset (CO)
3/4"3-1/2"2-1/4
1"4-3/4"4-7/16
1-1/2"7-1/4"4-7/16" +0" -3/16"2-1/2" +/- 1/4"
1-1/2"7-1/2"4-7/16" +0" -3/16"2-1/2" +/- 1/4"
1.6"7-1/2"4-7/16" +0 -3/16"2-1/2" +/- 1/4"

References

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