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LiftMaster 71-1550B82QKH Sprocket Kit, 82 Tooth, 1.25"BX3/8"K

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SKU
71-1550B82QKH

Quick Overview

  • 82-tooth sprocket kit with 1.25″ bore and 3/8″ keyway.
  • Compatible with LiftMaster commercial and hoist operator drive systems requiring a 1.25″ shaft and 3/8″ keyway.
  • Precision-machined for smooth chain engagement and reliable torque transfer.
  • Heavy-duty construction engineered for high-cycle and high-load operation.
  • Ideal replacement for worn or damaged drive sprockets in demanding applications.
$90.31
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The LiftMaster 71-1550B82QKH Sprocket Kit is a precision-engineered 82-tooth drive sprocket designed for LiftMaster operator systems that utilize a 1.25″ shaft with a 3/8″ keyway. The extended tooth count supports smooth power transmission and controlled chain engagement in heavy-duty and commercial-grade applications.

Built for durability in high-cycle environments, this sprocket helps maintain proper drive alignment while reducing wear on chains and related components. Replacing worn drive sprockets with the correct bore size, keyway, and tooth count ensures efficient operation and long-term reliability of the operator drive assembly.

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SeriesListed Models
MAXUM 700 (700 lb. Capacity)
700 SeriesJDC7, JHDC7, RJDC7
MAXUM 1200 (1200 lb. Capacity)
1200 SeriesJHDC12
MAXUM 2200 (2200 lb. Capacity)
2200 SeriesJHDC22