Sounds like it got damaged in shipping, the shaft should be center of the coil winding.it doesnt look bent.... it just looks weird....
ok im going to attempt to describe it to you guys....
if your looking at it like you were looking down a pipe... the shaft isnt in the center of the coil circumference.
the coil at its closest point is about 5/8 of an inch away from the shaft..... and maybe 1.5 inches away on the opposite side of the shaft.
I got it from predator10kdiscountantennas.com
Picture taking a soda can.... open it.... and then take a dowel and stuff it through the mouth opening in the can. the dowel wouldnt be in the center of the can. thats kinda how it looks.