A modular conveyor belt (10) comprises a plurality of first rows of one or more belt modules (20) and a plurality of second rows of one or more belt modules (40). Each of the first rows comprises a first drive surface (26) for receiving a force-transmitting surface of a first series of force-transmitting surfaces of a drive sprocket, the first drive surfaces (26) of the first rows being arranged along a first line in a direction of belt travel (T). Each of the second rows comprises a second drive surface (48) for receiving a force-transmitting surface of a second series of force-transmitting surfaces of the drive sprocket, the second drive surfaces (48) of the second rows being arranged along a second line in the direction of belt travel (T). The first line and the second line are offset with respect to each other. Each belt module (20) of the first rows comprises a first middle section (22) between two link sections (21), which has a first flat top surface and is arranged adjacent to a second middle section (42) between two link sections (41) of an adjacent belt module (40) of one of the adjacent second rows having a second flat top surface. The first flat top surface and the second flat top surface have a different width in the direction of belt travel (T) at least in adjacent zones and the first and second middle sections (22, 42) are devoid of linking means.

A modular conveyor belt (10) comprises a plurality of first rows of one or more belt modules (20) and a plurality of second rows of one or more belt modules (40). Each of the first rows comprises a first drive surface (26) for receiving a force-transmitting surface of a first series of force-transmitting surfaces of a drive sprocket, the first drive surfaces (26) of the first rows being arranged along a first line in a direction of belt travel (T). Each of the second rows comprises a second drive surface (48) for receiving a force-transmitting surface of a second series of force-transmitting surfaces of the drive sprocket, the second drive surfaces (48) of the second rows being arranged along a second line in the direction of belt travel (T). The first line and the second line are offset with respect to each other. Each belt module (20) of the first rows comprises a first middle section (22) between two link sections (21), which has a first flat top surface and is arranged adjacent to a second middle section (42) between two link sections (41) of an adjacent belt module (40) of one of the adjacent second rows having a second flat top surface. The first flat top surface and the second flat top surface have a different width in the direction of belt travel (T) at least in adjacent zones and the first and second middle sections (22, 42) are devoid of linking means.

A conveyor belt includes a plurality of modules arranged in succession and articulated with each other. First and second projections of the modules have mating profiles to allow the insertion of a connecting pin between adjacent modules. Each module includes housings for respective rolling balls projecting through a respective circular opening. The ratio between the diameter of at least one circumferential portion of the housing and the diameter of the respective rolling ball is between 0.8 and 0.6, while at least part of a rib is provided below, near the lower surface, with at least one respective projecting portion arranged for snap-fit insertion of the rolling ball into the respective housing seat.

A conveyor belt includes a plurality of modules arranged in succession and articulated with each other. First and second projections of the modules have mating profiles to allow the insertion of a connecting pin between adjacent modules. Each module includes housings for respective rolling balls projecting through a respective circular opening. The ratio between the diameter of at least one circumferential portion of the housing and the diameter of the respective rolling ball is between 0.8 and 0.6, while at least part of a rib is provided below, near the lower surface, with at least one respective projecting portion arranged for snap-fit insertion of the rolling ball into the respective housing seat.

A link for connecting supporting members used in conveyor belts, each supporting member being provided with a straight rod and the conveyor belt having a motion transmission member, includes a substantially U-shaped main body configured to be removably anchored to a respective straight rod. The main body is made of a metallic material and has a closed front portion and an open back portion provided with a pair of mutually facing end sections. At least one of the end sections is covered with a polymeric material and joined therewith in a permanent manner, a portion of the outer surface of the polymeric material covering the end section being adapted to selectively interact with the motion transmission member. A supporting member for a conveyor belt, and a method of making a connection link for supporting members of conveyor belts.

A link for connecting supporting members used in conveyor belts, each supporting member being provided with a straight rod and the conveyor belt having a motion transmission member, includes a substantially U-shaped main body configured to be removably anchored to a respective straight rod. The main body is made of a metallic material and has a closed front portion and an open back portion provided with a pair of mutually facing end sections. At least one of the end sections is covered with a polymeric material and joined therewith in a permanent manner, a portion of the outer surface of the polymeric material covering the end section being adapted to selectively interact with the motion transmission member. A supporting member for a conveyor belt, and a method of making a connection link for supporting members of conveyor belts.

A conveyor chain includes a first flight including a first side portion having a first aperture, a first flight bar, and a first sprocket-engaging portion. The conveyor chain also includes a second flight including a second side portion having a second aperture, a second flight bar, and a second sprocket-engaging portion. The conveyor chain further includes a connecting pin having a first end portion received within the first aperture and a second end portion received within the second aperture. The connecting pin couples the first and second flights together. The first sprocket-engaging portion is positioned laterally outwardly of the first end portion of the connecting pin and the second sprocket-engaging portion is positioned laterally outwardly of the second end portion of the connecting pin.

A conveyor chain includes a first flight including a first side portion having a first aperture, a first flight bar, and a first sprocket-engaging portion. The conveyor chain also includes a second flight including a second side portion having a second aperture, a second flight bar, and a second sprocket-engaging portion. The conveyor chain further includes a connecting pin having a first end portion received within the first aperture and a second end portion received within the second aperture. The connecting pin couples the first and second flights together. The first sprocket-engaging portion is positioned laterally outwardly of the first end portion of the connecting pin and the second sprocket-engaging portion is positioned laterally outwardly of the second end portion of the connecting pin.

A modular conveyor belt (10) comprises a plurality of first rows of one or more belt modules (20) and a plurality of second rows of one or more belt modules (40). Each of the first rows comprises a first drive surface (26) for receiving a force-transmitting surface of a first series of force-transmitting surfaces of a drive sprocket, the first drive surfaces (26) of the first rows being arranged along a first line in a direction of belt travel (T). Each of the second rows comprises a second drive surface (48) for receiving a force-transmitting surface of a second series of force-transmitting surfaces of the drive sprocket, the second drive surfaces (48) of the second rows being arranged along a second line in the direction of belt travel (T). The first line and the second line are offset with respect to each other. Each belt module (20) of the first rows comprises a first middle section (22) between two link sections (21), which has a first flat top surface and is arranged adjacent to a second middle section (42) between two link sections (41) of an adjacent belt module (40) of one of the adjacent second rows having a second flat top surface. The first flat top surface and the second flat top surface have a different width in the direction of belt travel (T) at least in adjacent zones and the first and second middle sections (22, 42) are devoid of linking means.

A tribologically modified polyoxymethylene polymer composition is disclosed. The polyoxymethylene polymer composition is comprised of a polyoxymethylene polymer in combination with a tribological modifier system. The tribological modifier system may include the combination of a fluoropolymer with a high density polyethylene, such as an oxidized high density polyethylene. The particular formulation provides a synergistic blend of properties. For instance, the polymer composition not only has an excellent surface appearance when molded into articles but has excellent low friction characteristics when tested against aluminum.