sme 312 bearing upgrade


I am wondering if the SME 312 bearings can be upgraded to bearings from the sme series IV or series V. Anybody know this one?
c123666
I am thinking about a 312. Is the bearing a problem? Is there any other problems?
The standard 312 bearing is not a problem and is indeed of the same high ABEC rating as the Series V. You can have Series V bearings fitted as an option but I would recommend you put the additional cost toward the purchase of a Series V (unless of course your requirement is only for a 12 inch arm). Also with the SME 300 series headshell, it can be "fiddly" as it is not the usual pattern and uses a locking screw at the side. Regards, Richard.