upgraded auto hub locks up

[2fast4-u]

hi

I have a upgraded gold anodized auto hub on my pro, this auto hub was never used until recently, it may be old but it was installed this summer and has a few gallons through it.

Anyhow I noticed that it would lock up, and I would have to have someone hold the rotor head while I turn the outer ring to free it up. It almost feels as if it is wedgeing itself, because as I loosen it it has gradual resistance until it is free'ed up. Once free it spins effortlessly as it should

I have since taken the unit apart and lightly oiled the needle bearings with light oil.

Any pointers as why a brand new auto bearing would repeatedly do this

Thanx

Ron

[DavidH]

I have never seen one of the sprag clutch auto hubs lock up. I am not saying they can't, but just I have never seen or heard of one doing that. If it locked up I would think it was not lubricated properly when it was first put into service. The instructions state you must soak the sprag clutch in transmission fluid or Tri Flow when first put into service. Then the sprag clutch should be serviced about every 50 flights.

David