I must lower my warrantee costs. How can I know which key component in my gearbox will most likely fail and when?

I’m seeing component failures from different suppliers. Can I compare the performance of their components under my operating conditions?

I’m being asked for increased product performance. Can I understand reliability for multiple materials and configurations?

How can I do more testing in the same amount of time. I need to get the right product performance faster than I do with just hardware testing.