Even with a thrust bearing a rotor can need occasional repair. I've got a Ham
IV mid 1980s vintage and when we were redoing my crankup tower a while back we
undid the screws holding the mast , moved it up, and the rotor came apart and I
was showered with ball bearings. Found some of them, no I don't need them for
my Pachinko machine--laughter, but thank goodness Norm's Rotor Service replaces
them anyway as part of their service. Only the second time I've sent the rotor
to Norm's. FYI I do grease the thrust bearing a couple times a year with
marine/wheel bearing grease since its its waterproof. The grease folks advise
don't mix greases, like lithium and moly, or wheel bearing grease. So I use
wheel bearing grease all the time.
Tom, WW5L
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