Abstract: A tree-trunk feed roller of a log harvesting unit includes a mantle for engaging the tree trunk, arranged in one piece around a body. In the space radially provided between these elements, one set of dogging elements is mounted on the mantle, and another set is mounted on the body, such that dogging elements of the respective sets alternate. Resilient elements are engaged between each two dogging elements from the opposite sets, such that the dogging elements and resilient elements are arranged to transmit radial and peripheral forces acting between the body and the mantle.