does anyone have a spare set of back cut durabond cam bearings? I ordered a set in January, from summit , have had 3 updated delivery dates , today they said august 18th , well I have had enough of them, but I need a set now! or just going to get some and back cut them myself, suggestions ?

 

I have a new set but not sure what back cut is. Explain

 

what i am looking for are durabond 06b which have a grove cut on the back side of the bearing

 

Why the grove cut ?

 

Same here. What is it for on the outside of the bearing?

 

found a set , but had to pay way too much, as for the back groove deal , best to just google it