Daniel,
haven't heard back from SKF yet. Do you have any updates?
Btw, if your crank pulley is accessible at the moment, you can compare its diameter to that of the bearings. If the bearings match or are larger (or even fairly close) I think the bearing speed limit concern I raised is a 'red herring.'
Best regards,
Bryan
'74 P250S S/N 15622
Indianapolis Indiana USA
blissinindy@yahoo.com