CETEST’s facilities include test benches for developing endurance and functional tests on gear boxes.
Cetest: Wheels and axles

Our test benches can be adapted to different powers, speeds and torques. We can therefore run any tailor-made testing solution adapted to our client’s needs.

Some of these rigs are prepared for no-load studies and they are rotary, being able to simulate ramps and curves. The main purpose of this test is to run the gearbox with no torque while checking:

  • There is a sufficient amount of oil, which is needed to dissipate the heat generated during this kind of operation.
  • Oil is distributed throughout the interior of the gearbox, coating the moving components that require lubrication (mainly bearings and gears).
  • Initial oil and bearing temperatures for the entire speed range.
  • For external oil leaking out of labyrinths, seals, etc.
Our test benches can be adapted to different speeds and torques. We can therefore run any tailor-made testing solution adapted to our client’s needs.
Cetest: Gearboxes

On the other hand, we also have other test benches for load studies; the main purpose of this test is to validate the gearbox under nominal working conditions in terms of speed and torque. This test usually involves simulating several speed-torque blocks:

  • Maximum starting torque.
  • Maximum breaking torque.
  • Maximum gearbox design speed.
  • Simulation of travel cycles with a combination of speeds and torques equivalent to (or higher than) those experienced by the gearbox during its service.

During this test, the temperatures of the bearings and oil are monitored. Vibration and acoustic power measurements are also carried out to assess the gearbox during torque transmission. At the end of the test, a chemical analysis of the oil is performed, along with an inspection of the bearings and gears.