Abstract: Drive belt having a belt rear side which is provided for driving auxiliary units, in particular V-ribbed belt, wherein the belt rear side is profiled and is preferably provided with an embossed profile, wherein the profile of the rear-side surface of the drive belt has a multiplicity of projections in the shape of truncated pyramids, the height h of which is less than 1 mm, and is preferably in macroscopic orders of magnitude where h?0.2 mm, wherein the base areas AG of the projections in the shape of truncated pyramids have an area of ?1.0 mm2 and the top surfaces AD have an area of ?0.8 mm2.

Abstract: Drive belt having a belt rear side which is provided for driving auxiliary units, in particular V-ribbed belt, wherein the belt rear side is profiled and is preferably provided with an embossed profile, wherein the profile of the rear-side surface of the drive belt has a multiplicity of projections in the shape of truncated pyramids, the height h of which is less than 1 mm, and is preferably in macroscopic orders of magnitude where h?0.2 mm, wherein the base areas AG of the projections in the shape of truncated pyramids have an area of ?1.0 mm2 and the top surfaces AD have an area of <0.8 mm2.

Abstract: A power transmission belt (20) having an elastic main body (17) includes a top layer as the belt backing and a bottom section having a power transmission zone. The power transmission zone and/or the top layer has/have a coating (15, 16), characterized in that the coating (15, 16) of the power transmission zone and/or the top layer includes at least the following layer construction: a base coating (18) made of a textile material, wherein the base coating (18) forms a bond with the elastic main body (17) and has a surface coating (19) including at least a mixture A, which contains at least one reactive diluent as per DIN 55945:2007-03. The invention further relates to a method for producing such a power transmission belt. The novel coating concept is applicable in particular in a toothed belt.

Abstract: A power transmission belt (20) having an elastic main body (17) includes a top layer as the belt backing and a bottom section having a power transmission zone. The power transmission zone and/or the top layer has/have a coating (15, 16), characterized in that the coating (15, 16) of the power transmission zone and/or the top layer includes at least the following layer construction: a base coating (18) made of a textile material, wherein the base coating (18) forms a bond with the elastic main body (17) and has a surface coating (19) including at least a mixture A, which contains at least one reactive diluent as per DIN 55945:2007-03. The invention further relates to a method for producing such a power transmission belt. The novel coating concept is applicable in particular in a toothed belt.

Abstract: The invention relates to a drive belt (1), particularly a toothed belt, having an elastic base body, comprising a cover layer (2) as the belt back, and a subframe (4) having a power transmission zone (7), wherein the base body is made from oil-resistant vulcanized rubber on the basis of a copolymer comprising butadiene and acrylonitrile, particularly HNBR, wherein according to the invention the proportion of acrylonitrile (CAN proportion) is <33% by weight with regard to the total weight of the copolymer. The particularly advantageous CAN proportion is 20 to 35% by weight. The power transmission zone (7) is typically also equipped with a textile cover (8), which is further provided with an oil-resistant protective layer (9), which is preferably made from PTFE.

Abstract: An HNBR-based toothed rubber belt (10) with a glass, carbon and/or aramid cord reinforcement (5) has a modified tooth covering (6) made of polyamide 6.6 fabric having weft threads (64) entirely or partly replaced in the peripheral/longitudinal direction of the belt by yarns made of polyether ether ketone (PEEK), polyimide (PI) and/or meta-aramid (M-A) or modified with PEEK, PI and/or M-A.