We're using a ball screw, purchased from Thompson, in a horizontally positioned linear translation stage. It spans 88" with a 1" screw Diameter. I believe the lead is 0.5". The ball screw is positioned between two rails.
While the stage is in motion I can hear what sounds like a grinding noise. It is only noticable when the stage is moving towards the driving motor; not noticable in the reverse direction. Presumably I'm hearing the balls recirculating.
Is it normal for this to make such a racket? Is there a reason I only hear it in one direction?
Any comments or suggestions would be most appreciated, I'm looking a a potentially costly repair.