Experimental and numerical investigations of slip behavior for combined loaded full-complement cylindrical roller bearings

This paper examines the roller slip behavior of full-complement cylindrical roller bearings under different radial eccentric load, radial load direction, axial load, speed and temperature. For this purpose, 2240 roller slip measurements are carried out with a coil attached coaxially to the roller set and a roller body equipped with a diametrical magnet. The evaluation is carried out using an improved evaluation system, which includes both the frequency and amplitude proportionality of the induced voltage. Overall, the roller slip decreases with radial loading in the direction of gravity and with increasing axial load, speed and oil temperature. To explain the physical relationships, which are responsible for these changes, a comparison with results of multibody simulation of the bearing with an advanced modeling of contacts, lubrication and friction is carried out.