Looking for some help/advice in selecting Belleville washers for a power drawbar. I'm looking to use tormach TTS tooling and trying to achieve over 2200lbs of force. Drawabr is R8 so the ID needs to suit a 7/16 UNF (approximately 11mm) drawbar and the OD of the spindle is 36mm.
I've been looking at the S4308 washers in Ondrives https://www.ondrives.com/data/pdf/be...rs_shims/s.pdf
These are 2719N (611lbs) and have a loaded height of 1.75mm
From the diagram I take it the loaded height is how far I can compress the washer - i.e. 1.75mm (0.069") of travel.
If I stack them 4 high, then I get 10876N (2445lbs).
Are my assumptions correct? Stacking 4 washer together seems far to simple compared to other peoples setup!