Part # 3 in the Diagram.
The Hilliard Inferno Clutch hub is the base of the clutch. Heat treated, the hub features a keyway to prevent rotation on the crankshaft. core of the Hilliard clutch, and stabilizes and coordinates clutch shoe movement during operation. This hub fits the flame and fire clutches.
Included: Hub Fixture, Dust Shield, and circlip.