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The LiftMaster 71-1550B60QKH Sprocket Kit is a precision-engineered 60-tooth drive sprocket designed for LiftMaster operator systems that utilize a 1.25" shaft with a 3/8" keyway. The larger tooth count and heavy-duty configuration support smooth power transmission and controlled chain movement in commercial and industrial-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 sprockets with the correct bore size, keyway, and tooth count supports efficient operation and long-term reliability of the operator drive assembly.
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