Abstract: A continuously variable transmission comprises a housing (1) which accommodates two pulley sets (2, 3) and an endless flexible drive element (24) fitted around said pulley sets for transferring a torque, one of said pulley sets being provided with coupling means (14) for an ingoing shaft and the other with coupling means (22) for an outgoing shaft, said pulley sets each comprising two discs (4, 5) enclosing a groove which increases in radially outward direction, and screw drive means (6) for changing the distance between the two discs of each pulley set with the aim of changing the transmission ratio. Each disc is connected to a hub unit (7, 8) comprising a rolling element bearing means (9, 10, 30) for rotatably supporting the disc, each hub unit being axially displaceably supported with respect to the housing.

Abstract: A truck hub bearing unit comprises two rolling element bearings, (3,4) which comprise an inner ring (9) means and an outer ring (5) means provided with raceways which are in rolling contact with two series of rolling elements, a fixed member or connection to the wheel suspension of the truck and a rotatable member or supporting a wheel, said rotatable member being supported with respect to the fixed member by means of said rolling bearings. The outer ring means is connected to the fixed member and the inner ring (9) means is connected to the rotatable member.