The successful application of the oil/air lubrication presupposes the favourable setting of the parameters. This report deals with results based on a statistical design of experiments. A test stand with a spindel/bearing system has been built to measure the temperature rise at the inner race way of an angular contact ball bearing, it's friction torque and the change of preload. The values to be variied were the viscosity of the oil, the position of the nozzle, the oil and the air volume.
