We balance each disc on a separate shaft prior to assembly. All individual parts are ground as well including any washers.
We torque the nut to 10ft.lbs. It's a very fine LH thread so it isn't going to come off but it needs to provide enough friction force as the discs are not keyed.
I'll...
Thanks for all the comments.
The device is a axial flow compressor with 5 stages. We've got it much better by using a sleeve nut and hardened washers so we can live with it for now but it's not really a production solution. We have everything clocked up to less than 2/10 thou and balanced.
I'd...
I haven't got as far as vibration yet so I'm not sure if this is the right place?
I have a shaft which clamps a series of rotating discs. All are balanced and true until I tighten the clamping nut (M10 x 1 LH) then the shaft shows some runout. We've improved the situation with a sleeve nut but...
I'm trying to buy a motor and speed controller for an axial flow compressor test rig. ideally I'd like 50kW which should drive it to 70,000 rpm but I'd consider anything above 8kW and 30,000 rpm. I've spent a couple of days with Google but haven't really come up with anything. Any ideas would be...
