Hopefully someone can identify these parts I got in a bin or stuff that came with a Unisaw and Jet 8" jointer purchase. The spindle part has two different size arbors and looks like it has a machine slot the indexes into a grove on some type of tool. Maybe it isn't part of either tool and is something that ended up in the box. The black part looks like some type of fence attachment or something related to that. Unisaw is mid 90's era and has the 52" table extension and unifence.
Thanks!