Some Aspects regarding Materials Used in Non-metallic Elements Construction of Elastic Couplings

This paper presents aspects regarding the construction of couplings with bolts using non-metallic elements, e.g. rubber, having different hardness, the elements involved in torque transmission, in this case elastic elements, having also different dimensions or forms, in the way to have a good elasticity and capacity of vibration absorbtion. In paper there are also presented: the construction of non-metallic elements, the method of experimental determination of longitudinal elastic modulus “E”, longitudinal elastic modulus “E” values of three rubber qualities being used in FEM modeling, researches due on non-metallic elements from a new coupling with bolts and rubber elements. Key-Words: Elastic coupling, non-metallic elements, the physic-mechanic characteristics, the method of experimental determination.