Determining Max torque or pre-load on thrust bearings

[goodguy1405]

Hello, Anyone know how to determine the max torque on thrust bearings in a PDM? How to determine how much pre-load you need on a thrust bearing stack? Any information or resources would be greatly appreciated. Thanks

 

[chicopee]

I don't know what a PDM is, however, if it is a piece of equipment or machinery wouldn't the manufacturer have specifications.

 

[goodguy1405]

PDM=Positive displacement motor. I am the manufacturer. Just trying to get a good sense of what the thrust bearing stack should be? It includes races and ball bearings in a stack of 5 races inner and outer. I can not find anything as a gaug for it. Thanks