The drive hub is made from billet heat treated steel with a 2.00" male register and six .375" bolt holes on a 2.782" bolt circle. Snout uses high speed bearings and double lipped Teflon seals to insure maximum strength and longevity. Snout housing is o-ringed to provide a superior seal to the blower front cover.
Blower drive shaft and coupler are sold separate. Blower snout fits most all roots blowers in the industry.
RBS can help the racer set up with the proper coupler for there blower at time of purchase.