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The LiftMaster 71-1550B60LGH Sprocket Kit is a precision-engineered 60-tooth drive sprocket designed for LiftMaster operator systems that utilize a 1" shaft with a 1/4" keyway. The large 60-tooth configuration provides controlled power transmission and smooth chain engagement even in heavy-duty operational settings.
Built for durability in commercial and 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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