Details

LiftMaster Sprocket Kit with 42-Tooth 1.25" x 1/4" Keyway for Gate Openers - 71-1550B42QGH

The LiftMaster 71-1550B42QGH Sprocket Kit is designed for commercial door systems using #50 chain. It features a 42-tooth design, 1.25-inch bore, and a 1/4-inch keyway. This kit is compatible with LiftMaster Maxum JDC/JHDC operators and Logic 4.0 or 5.0 models. It includes the shaft key and should be selected based on your door type and required operating speed per the manufacturer's sprocket chart.

Specifications

• Tooth Count: 42
• Bore Size: 1.25 inches
• Keyway: 1/4 inch
• Chain Size: #50
• Compatibility: Maxum JDC/JHDC, Logic 4.0/5.0
• Includes: Shaft key