Masterdrive triple groove 5.5" cast iron pulley/sheave with a 1-1/8" H-bushing for B section belts is a high-quality 2-piece pulley that measures 5.5" outside diameter and is designed to be used with an H-style bushing. The bushing inserts into the center of the pulley and slides over the shaft, as you tighten down the bolts on the H-bushing it will tighten down on the shaft making this style of pulley much more secure than a standard single-piece pulley. The bushing is made of solid steel and precision machined to ensure high quality and secure attachment to your motor/engine shaft. This pulley accepts B Section also known as 5L series belts and is 5/8" wide.
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