A sprocket is required for installation of each JDC and JHDC operator. See sprocket table for suggested sprocket selection to safely achieve recommended door speed:
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Sprocket with Key Kits (For #50 Chain), needed for JDC and JHDC
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Weight
Characterist of Door
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Door Type
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Tooth Count
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1 in. Bore, 1/4 in. Keyway
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1.25 in. Bore,
1/4 in. Keyway
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1 in. Bore,
3/8 in. Keyway
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1.25 in. Bore, 3/8 in. Keyway
|
|
700
|
Sectional
|
16
|
71-1550B16LGH
|
71-1550B16QGH
|
|
|
|
1200
|
Sectional
|
22
|
71-1550B22LGH
|
71-1550B22QGH
|
|
|
|
2200
|
Sectional
|
32
|
71-1550B32LGH
|
71-1550B32QGH
|
|
|
|
700
|
Rolling, Uninsulated
|
50
|
71-1550B50LGH
|
71-1550B50QGH
|
71-1550B50LKH
|
71-1550B50QKH
|
|
700
|
Rolling, Insulated
|
60
|
71-1550B60LGH
|
71-1550B60QGH
|
71-1550B60LKH
|
71-1550B60QKH
|
|
1200
|
Rolling, Unisulated and Insulated
|
72
|
71-1550B72LGH
|
71-1550B72QGH
|
71-1550B72LKH
|
71-1550B72QKH
|
|
2200
|
Rolling, Unisulated and Insulated
|
82
|
71-1550B82LGH
|
71-1550B82QGH
|
71-1550B82LKH
|
71-1550B82QKH
|
NOTE: 3/8 in. keyway options are only available for rolling door applications.
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|
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