Abstract: A method for assembling sensor on a housing. The sensor provided with a body, a protrusion and an electrical connection cable. The housing being provided with a blind hole shaped to engage with the protrusion of the sensor. The assembly method provides the following phases: a) inserting the protrusion in the blind hole of the housing bringing an end wall of the protrusion into contact with a bottom wall of the blind hole, b) tightening a bushing to a first tightening torque value, the bushing having an external thread that engages with an internal thread of the blind hole and an internal thread that engages with an external thread of the protrusion, in which all of the threads have the same pitch, c) tightening a hexagonal nut to a second tightening torque value.

Abstract: A measurement system including: a radial external hole on a cover of a railway axle-box on the side of an edge of the cover facing towards a rolling bearing of the axle-box; a smaller axial hole made on the edge of the cover facing towards a ring of the bearing and opening in the radial hole; a cup-shaped body accommodated in the radial hole; a fork shaped spring integrally carried by a bottom wall of the cup-shaped body, projecting in front of the axial hole; a temperature probe slidingly accommodated within the axial hole and including a tubular element incorporating an electrical temperature sensor and an electric cable protruding from a first end of the tubular element accommodated within the cup-shaped body; and an abutting element removably coupled to the first end to cooperate with the spring, which pushes a second end of the probe out of the axial hole.

Abstract: A method for assembling sensor on a housing. The sensor provided with a body, a protrusion and an electrical connection cable. The housing being provided with a blind hole shaped to engage with the protrusion of the sensor. The assembly method provides the following phases: a) inserting the protrusion in the blind hole of the housing bringing an end wall of the protrusion into contact with a bottom wall of the blind hole, b) tightening a bushing to a first tightening torque value, the bushing having an external thread that engages with an internal thread of the blind hole and an internal thread that engages with an external thread of the protrusion, in which all of the threads have the same pitch, c) tightening a hexagonal nut to a second tightening torque value.

Abstract: A measurement system including: a radial external hole on a cover of a railway axle-box on the side of an edge of the cover facing towards a rolling bearing of the axle-box; a smaller axial hole made on the edge of the cover facing towards a ring of the bearing and opening in the radial hole; a cup-shaped body accommodated in the radial hole; a fork shaped spring integrally carried by a bottom wall of the cup-shaped body, projecting in front of the axial hole; a temperature probe slidingly accommodated within the axial hole and including a tubular element incorporating an electrical temperature sensor and an electric cable protruding from a first end of the tubular element accommodated within the cup-shaped body; and an abutting element removably coupled to the first end to cooperate with the spring, which pushes a second end of the probe out of the axial hole.

Abstract: For mounting a sensor (17) to a railway axle bearing unit having an annular sealing insert (10) fast with the stationary outer race of the bearing from the axially outer side thereof, a sensor mounting device comprises a mounting element of substantially annular shape (14, 14′) adapted for mounting to an axial cylindrical surface (13) of the insert (10). The mounting element supports a sensor (17) to be positioned at the upper half of the annular insert (10) and a connector block (19), located at the lower half of the annular insert (10), and adapted for providing electrical connection between a wire (21) connected to the sensor (17) and a cable (22) connected to a further point remote from the bearing.