Are you sure that you got Esky parts... I question this because you said the screws fell out a couple times almost right away.

I'm willing to bet you got the parts off fleabay at a really good price and the parts came in a plastic baggie... yes/no???

Yes means you got knock-off parts which are known poor quality parts that are more poor than good. The reason the screws fell out so quickly and worn out bearings.

There are much better quality parts other than Esky as well... it pays to shop around or ask here... CopterX is probably equal quality to Esky original parts. If you want quality parts go to cnchelicopter for parts equal or better than Aligns Trex parts.

Happy fly'n