It will be interesting to look at my buds '22XCR drive bearing this spring with 4000+ miles. We regreased his jackshaft bearing this fall but it was fine. He didn't think it was worth checking the DS bearing even tho his '19 let go @ about 4K.
Edit/Add: Driveshaft bearing was toast or was gonna be in a couple more miles when we finally checked it Nov. 2023', Replaced with Northstar greasable which is similar to Mag6240.