POWER TRANSMISSION BELT AND BELT STEPLESS-ADJUSTMENT TRANSMISSION Russian patent published in 2017 - IPC F16G5/22 F16G5/06 F16H9/18 B32B25/10 C08K5/3415 

FIELD: transportation.

SUBSTANCE: belt is equipped with a layer having tensile elements, tensile rubber layer formed on one surface of the carrier layer, and a tensile rubber layer on the other surface of the carrier layer. The belt has teeth formed on the inner surface and is in frictional engagement with pulleys of the side surface of the tensile rubber layer. The tensile elements are formed of aramid fibers. The tensile rubber layer is formed of a vulcanised rubber composition comprising a rubber component and short aramid fibers. Aramid short fibers are embedded in the vulcanized rubber composition, being oriented in the direction of the belt width. The power belt has a relative deformation from about 0.5 to about 0.8%, being compressible with pressure of 2.0 N/mm² in the direction of width. The power belt has a relative deformation from 0.35 to 0.7% being stretchable in the longitudinal direction with a load of 2 kN.

EFFECT: increased belt reliability.

7 cl, 3 tbl, 5 dwg