You can find the rubber belows spring rate in the "Fluid Sealing Asociation" Technical Handbook.

As many companies are members of the "Fluid Sealing Asociation" you can be confident that these spring rates are the maximum.



I think that would be a good idea to introduce them in the Caesar database.

Please note that "filled arch" type will have about four times higher the spring rates, while "double arch" type will have half the spring rates.

Regards,