One of our customers with considerable mechanical engineering knowledge pointed out that sleeve bearings are not not inherently inferior to ball bearings. So the difference in longevity and load rating the KX2’s contacting VFO encoder vs. the K3’s optical VFO encoder is not necessarily due due to the bearing type. More likely it’s due to the differences between resistive (mechanical) contacts vs. optical sensing, as well as overall construction.
73,
Wayne
N6KR
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