FIELD: machines with tools for excavation.
SUBSTANCE: worn-out element includes a body with an outer layer and a bearing layer. Outer layer including several recesses is made on outer surface. Bearing layer is attached to inner surface of outer layer. Bearing layer is divided into several parts of bearing layer, and each of several parts of bearing layer includes at least one mating edge. Several parts of bearing layer are assembled together so that each mating edge of each of several parts of bearing layer is joined to opposite mating edge of other several parts of bearing layer, forming between them at least one gap.
EFFECT: providing the wearable elements shape, which can cover large areas, overcoming problems with cracking or destruction of mounting surface.
9 cl, 16 dwg
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