A device is provided for measuring the force acting on a vehicle wheel by means of a stress detection sensor (3) disposed in a hole (2) provided in a vehicle axle (1). Signals from the strain gauges of the sensor are processed in a signal processing circuit (41, 44). The stress detection sensor (3) is secured in the hole (2) by spacer means (4). The spacer means (4) comprise a material which fills all of the space between the detection sensor (3) and the walls of the hole (2). Preferably, the material of the spacer means (4) is the same material as the base (20) of the sensor.