Disclosed is a manufacturing process tool for a lateral positioning strip toothed belt, including a lateral positioning strip, a fixing molded plate, a lateral strip belt width positioner, a lateral strip belt length positioner and a rubber body. The fixing molded plate fixes the lateral strip belt width positioner and/or the lateral strip belt length positioner, the lateral strip belt length positioner is provided on one side or two sides of the fixing molded plate, the lateral strip belt length positioner faces an inner side of the fixing molded plate and forms a lateral positioning strip belt forming groove together with the lateral strip belt width positioner, an intra-belt lateral positioning strip is provided in the lateral positioning strip belt forming groove, the rubber body is provided in the lateral positioning strip belt forming groove.

A flat belt provides an endless traction suitable for conveyor belts, and has no fabric insert in the force transmission region. In some embodiment it has no fabric insert in the back of the belt. The flat belt is formed by a multistage method which includes forming a flat belt with a main body and endless tension member elements, by a rotary vulcanization process, and subsequently forming at least a part of the force transmission region on the flat belt. The flat belt may be used in agricultural machines which convey agricultural harvested material.

A warp-directional stretch fabric that defines two right faces and is formed from warp yarns defined by a nylon and fill yarns defined by an aramid. The fabric can be incorporated into a toothed belt, for example a transmission belt, to produce a belt that has enhanced structural and resistance capabilities while capable of being produced at a lower cost than prior art belts. A method of producing an improved toothed belt including the fabric is also provided.

A warp-directional stretch fabric that defines two right faces and is formed from warp yarns defined by a nylon and fill yarns defined by an aramid. The fabric can be incorporated into a toothed belt, for example a transmission belt, to produce a belt that has enhanced structural and resistance capabilities while capable of being produced at a lower cost than prior art belts. A method of producing an improved toothed belt including the fabric is also provided.

A frictional power transmission belt includes a frictional power transmission surface in which the frictional power transmission surface is covered with a fibrous member. The fibrous member at least includes water absorptive fibers and an inorganic powder exists in at least a surface of the fibrous member.

A frictional power transmission belt includes a frictional power transmission surface in which the frictional power transmission surface is covered with a fibrous member. The fibrous member at least includes water absorptive fibers and an inorganic powder exists in at least a surface of the fibrous member.

A friction transmission belt has a rubber layer forming a pulley contacting portion. The rubber layer is made of a rubber composition containing a crosslinked rubber component and crosslinked polyolefin particles. Examples of the crosslinked polyolefin particles can contain ultrahigh molecular weight polyolefin particles having an average molecular weight of 500,000 or more.

A friction transmission belt has a rubber layer forming a pulley contacting portion. The rubber layer is made of a rubber composition containing a crosslinked rubber component and crosslinked polyolefin particles. Examples of the crosslinked polyolefin particles can contain ultrahigh molecular weight polyolefin particles having an average molecular weight of 500,000 or more.

A synchronous belt having a tensile member layer with a tensile member embedded in an elastomeric body, a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body, a jacket covering the toothed surface, and a unidirectional fabric layer suspended in the belt between the jacket and the tensile member layer and following the approximate contour of the jacket.

A synchronous belt having a tensile member layer with a tensile member embedded in an elastomeric body, a toothed surface with a plurality of regularly spaced, transverse teeth protruding from the body, a jacket covering the toothed surface, and a unidirectional fabric layer suspended in the belt between the jacket and the tensile member layer and following the approximate contour of the jacket.