Resumen:
The purpose of the current research is to develop a method to estimate and value quality warranty time period of any industrial product or machine. To obtain this one the reliability function that describes the machine over time is required the knowledge, also the product demand function will be very important. Also the demand proposes a practical methodology to find the reliability of a clutch, very useful for engineers of design, manufacturers and engineers of after sale. The methodology is based on an experimental procedure based on testing life.