Abstract: A force and/or motion generating arrangement comprises a body (16) of magnetostrictive material and means (10, 17) for feeding a magnetic flux through said body. Said means (10, 17) comprise a pair of opposite pole surfaces (14), which are located at a short distance from each other, said pole surfaces being connected to a source (17) of said magnetic flux and defining a gap (15) for receiving said body (16) therebetween and being arranged to feed the magnetic flux through said body (16) in a first direction (x), in which said body (16) has small dimensions in relation to its dimensions in at least one other direction (y), which is substantially perpendicular to said first direction and in which the body (16) may be brought to apply a force on and/or impart a motion to another object (19).