just to add to what markus was telling you about your crankshaft being a ball bearing type would be the machine groove for the snap ring that go's on after the bearing and crank is installed ,but before the pto crank seal is installed.
i don't know if the bearing is the same for a ohh-motor? tecumseh number i have for a ohh -crank is a 36732
flathead might be different and the only part that would be different ,maybe the outside dem's bearing? crankshaft dem's would be the same.
what i am really trying to get too is the price for a bearing. i see some guys on ebay marking the bearing way up$$
listing it has a rupp bearing. one of my bearings came in a tecumseh OEM box with the correct bearing side cover i purchase and on the bearing stamp 6205 peer. look it up on ebay and you can get it for less then $5 ship to your door:thumbsup: