Q-D Bushing Inch Bore Type, 5.4375" Bore Size, 6.76" Length Trough Bore, 9" Outer Diameter, M Bushing, Gray Iron - G3053 Reverse mounting ability - This bushing system allows for mounting on either side of the product to allow for a more flush view of the product face. 3/4"/ft. Taper on Barrel - Self locking taper provides the highest degree of mechanical locking product to product.