FIELD: machine building.
SUBSTANCE: chain consists of interconnected links. The links have curvilinear internal end surface made along radius. Cross section of each link is ribbed from the side of its external surface. Cross section from the side of internal surface of the link is made with radius equal to half of a chain pitch or radius of curvilinear internal end surface of the link.
EFFECT: increased surface of heat exchanging, reduced metal input of chain and reduced wear of internal surface of link.
2 cl, 3 dwg
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