I'm a design engineer for a well established a bearing manufacturer. We have recently in the last few years added products to our catalog that include a Cam follower and Yoke type bearing with a Polyurethane tire molded to the outer ring by means of a bonding agent. We did some test studies to determine maximum load and de-lamination. We discovered that The 1/8" thick tire would de-laminate if we mounted the bearing so it had a radial load and had more than 1/32" of polyurethane compression. The polyurethane we tested is our standard that has a durometer of Shore A 80. I was wondering if there is a standard formula or calculation to determine this point of de-lamination with other thicknesses and durometers? I'm sure there are lots of variables to consider, but I'm just looking for a basic formula so I can code a calculator for our engineering department which would save us some time. I haven't been able to get any information on this anywhere. Does a formula for this exist and if so could someone point me in the right direction?
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