Thanks Jerry.
This was an interesting deal. I bought two from this source, all they had. When I got them yesterday I opened them to inspect. Strangely on one of the bearings one of the retaining clip hooks was broken off. So I sent a photo and complained to the seller. Next thing I know they refunded all of my money, aplogised and told me to keep them for free! Now that's over the top customer service.
Anybody know if this other one is salvageable?
H