Beginner - Parts for Makerbot Replicator 2

[jsaunders]

Hoping someone can help me get this machine working properly. I received a Makerbot 2 Replicator through a company scrap, and noticed that it was missing some hardware (photos attached). New at this, but it looks like I am missing the Y axis pulley and belt. There is a bearing jammed in the upper corner, but there isn't any other hardware. Can someone point me in the right direction?

Thanks!