- Usually Ships 4 to 7 Business Days
LiftMaster
JDC & JHDC Sprocket with Key Kit (#50 chain) - Sectional
- Usually Ships 4 to 7 Business Days
- availability:
- available
To complete the set up of the LiftMaster JDC and JHDC MAXUM commercial jackshaft operators, you'll need a sprocket for each
installation. Refer to the sprocket table provided below to choose the
appropriate sprocket for achieving the recommended door speed safely. This listing only contains the sprocket kits for SECTIONAL DOORS. These sprocket kits are for #50 Chain. Please note: the 3/8" keyway option is only available for rolling steel door applications.
- The Tooth Count: Will effect how fast the operator will make the door go up and down. The ideal, safe speed is 12" per second for a sectional door.
- The Keyway: Slot machined in the bore and shaft that holds the key, ensuring proper torque transmission.
- Bore: Center hole of sprocket - must match diameter of the shaft.
Sprocket with Key Kits
| Weight Characteristic of Door | Door Type | Tooth Count | 1 in. Bore, 1/4 in. Keyway | 1.25 in. Bore, 1/4 in. Keyway | 1 in. Bore, 3/8 in. Keyway | 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, Insulated and Uninsulated | 72 | 71-1550B72LGH | 71-1550B72QGH | 71-1550B72LKH | 71-1550B72QKH |
| 2200 | Rolling, Insulated and Uninsulated | 82 | 71-1550B82LGH | 71-1550B82QGH | 71-1550B82LKH | 71-1550B82QKH |