Abstract: A composite material includes an elastomer matrix forming a basic component of the material. There is included a cross-linking system of the elastomer matrix and at least one fiber reinforcement including fibers with a maximum length of about 30 mm. The fibers are disposed throughout the elastomer matrix and are generally oriented to extend in a first direction of reinforcement. There is at least one thermosetting resin in the elastomer matrix. The elastomer matrix which includes the cross-linking system, the fiber reinforcement and the thermosetting resin has a first equivalent tensile modulus which is calculated for a hypothetical elongation of 100% in the first direction and a second equivalent tensile modulus which is calculated for an actual or hypothetical elongation of 100% in a second direction which is perpendicular to the first direction. A second equivalent tensile modulus is at least 6 MPa.

Abstract: A composite material includes an elastomer matrix forming a basic component of the material. There is included a cross-linking system of the elastomer matrix and at least one fiber reinforcement including fibers with a maximum length of about 30 mm. The fibers are disposed throughout the elastomer matrix and are generally oriented to extend in a first direction of reinforcement. There is at least one thermosetting resin in the elastomer matrix. The elastomer matrix which includes the cross-linking system, the fiber reinforcement and the thermosetting resin has a first equivalent tensile modulus which is calculated for a hypothetical elongation of 100% in the first direction and a second equivalent tensile modulus which is calculated for an actual or hypothetical elongation of 100% in a second direction which is perpendicular to the first direction. A second equivalent tensile modulus is at least 6 MPa.

Abstract: A transmission mechanism for continuously variable transmissions comprises at least one endless flexible connecting element which is non-metallic, flexible, quasi-inextensible longitudinally, and a plurality of transverse links, also non-metallic. Each link includes at least one groove in which is engaged the endless flexible connecting element. The transmission mechanism is further characterized by the fact that the coefficient of friction between the endless flexible connecting element and the transverse links is a maximum of 0.4. The transverse links, which are axially perfectly symmetrical, have on each of their faces, a device for guidance of the transverse links relative to one another.

Abstract: A transmission mechanism for continuously variable transmissions comprises at least one endless flexible connecting element which is non-metallic, flexible, quasi-inextensible longitudinally, and a plurality of transverse links, also non-metallic. Each link includes at least one groove in which is engaged the endless flexible connecting element. The transmission mechanism is further characterized by the fact that the coefficient of friction between the endless flexible connecting element and the transverse links is a maximum of 0.4. The transverse links, which are axially perfectly symmetrical, have on each of their faces, a device for guidance of the transverse links relative to one another.

Abstract: A composite material for a transmission belt includes an elastomer matrix forming a basic component of the material. There is included a cross-linking system of the elastomer matrix and at least one fiber reinforcement including fibers with a maximum length of about 30 mm. The fibers are disposed throughout the elastomer matrix and are generally oriented to extend in a first direction of reinforcement. There is at least one thermosetting resin in the elastomer matrix. The elastomer matrix which includes the cross-linking system, the fiber reinforcement and the thermosetting resin has a first equivalent tensile modulus which is calculated for a hypothetical elongation of 100% in the first direction and a second equivalent tensile modulus which is calculated for an actual or hypothetical elongation of 100% in a second direction which is perpendicular to the first direction. A second equivalent tensile modulus is at least 6 MPa.