Cage and Roller Slip in High-Speed Roller Bearings

Abstract

This paper describes the start of an investigation into the factors affecting cage and roller slip in high-speed roller bearings. Cage and roller speeds, for different radial clearances, are measured over a range of steady radial loads and shaft speeds, using several lubricants. These results are analysed and compared with existing theoretical evidence. To improve the correlation between theory and practice further theoretical results of cage and roller motion are obtained for bearing conditions relevant to the regime where the fluid pro-perties are pressure dependent. The theoretical extent of cage and roller slip shows only a fair agreement with the experimental findings. However, the load below which cage slip will occur is much more accurately forecast.