1-7/8 External Snap Ring
External
7S Flange 1-7/8 (1/2X1/8 Key Way)
6018 Chain Coupling 1-7/8
8SCH Spacer Hub 1-7/8 (1/2X1/4 Key Way)
SF1-7/8 QD HUB
3/4 Internal Snap Ring
9S Flange 1-7/8 (1/2X1/4 Key Way)