Slip　often　occurs　in　high-speed　and　light-load　roller　bearings　(HSLLRBs)　when　the　frictional　drive　force　is　inadequate　to　overcome　the　drag　forces　between　the　rolling　elements　and　the　raceway.　Formerly,　skidding　analysis　of　HSLLRBs　considering　bearing　whirling　based　on　a　simplified　method　using　the　Dowson-Higginson　empirical　model,　although　the　analytical　results　of　the　cage　slip　fraction　show　significant　discrepancies　with　the　experimental　data,　as　for　extremely　light　radial　loads.　One　of　the　main　reasons　is　the　inaccuracy　of　the　evaluation　of　oil　drag　forces　using　the　empirical　equations.　In　this　study,　the　elastohydrodynamic　lubrication　(EHL)　method　was　adopted　to　calculate　the　oil　film　thickness　and　pressure　distribution　of　HSLLRBs,　so　as　to　obtain　more　accurate　oil　drag　forces.　The　cage　speed　and　cage　slip　fraction　were　obtained　by　combining　the　whirl　orbits,　drag　forces,　load,　kinematic　equations　and　other　related　equations　and　then　solved　using　the　Newton-Raphson　method.　The　skidding　mechanism　was　investigated　in　terms　of　various　operating　parameters　such　as　whirl　orbit　radii,　radial　load　and　viscosity.　The　results　showed　that　the　cage　slip　fraction　and　cage　speed　oscillate　over　time　because　of　the　whirl,　which　leads　to　an　increase　in　the　risk　of　bearing　skidding　damage.　Under　the　extremely　light　load　and　high　speed,　the　slip　and　influence　of　the　whirl　on　bearing　skidding　increases　as　the　whirl　radius　and　radial　load　increases,　while　the　viscosity　shows　a　reverse　trend.　Therefore,　in　order　to　reduce　slip　and　skidding　damage,　the　whirl　radius　and　radial　load　should　be　decreased　suitably,　while　the　viscosity　should　be　increased　moderately.　A　comparison　between　the　calculated　and　experimental　results　shows　that　the　proposed　method　is　both　feasible　and　valid.