[QUOTE=Lonewolf_50;9755171]What about a bearingless rotor?
A 'bearingless rotor' is rarely totally bearingless, but 'reduced bearing count rotor' doesn't sound as sexy. Same comment applies... there are specific bearing types that are well suited to particular sized components based on loads and motions. It's a matter of seeing which ones package reasonably into your specific hub needs. As far as the flexbeam portion of a bearingless design, my comment on strain levels being relatively constant with rotor diameter still applies. In practice, of course, there are plenty of other design considerations that make a bearingless rotor more or less appropriate for a particular application.