I think I need some BB work done. But thinking I can do this myself.

road bike is an Argon 18

Argon 18

Radon

I have a SRAM Apex crank

When I am riding . I all of a sudden get moments where you hear all this metal on metal screaming noise.

So I was able to take it all apart myself and look inside

I noticed I only had 4 ball bearings left . the bearings seem to sit and held in place by grease.

I am wondering how many bearings would i need to place here? as it is odd i could only find 4 bearings here. Should the whole circular of the BB have more bearings?



or would i need a new BB. here are some pics of the crank. I don’t have a pic from inside.

suggestions of what i should do, as per do it at home situation for now. as my LBS is backed up for a few weeks now.



Help and suggestions please. thanks