Question- setting spring loaded thrust bearings

[MS2025]

Hi, first post here.
I had a flowserve boiler feed pump in the workshop for overhaul. It’s a 3X10WXH - 14, it has two single row angular contact ball bearings at the nde, bevelled washers as springs, shim for bearing and shim for the springs for adjustment.

I’m looking for advice for setting this up as I don’t have much experience with the spring setup.
Am I right in saying the spring will take some of the thrust towards the De until the balance disc comes into play to equalise the thrust. I’d like to better understand how the setup works on this style of pump.

Thanks
M

 

[accapumps]

I am not familiar with the spring setup, but keep in mind that most thrust bearings are directional. Here you can see two backplates that were supposed to be identical on a progressive cavity pump. The one on the right had the thrust bearing installed backwards and the hole that you see with packing was not supposed to be there, the shaft grinded it off to the packing gland.View attachment IMG_8809.jpeg
All pumps are different, but this failure took us a long time to figure. Installed the thrust bearing correctly on this Progressing cavity pump and that was it.