The　thermal　contact　resistance　(TCR)　of　a　spindle-bearing　joint　is　crucial　in　the　analysis　of　thermal　characteristics　of　high　speed　motorized　spindle,　which　could　severely　affect　the　machining　accuracy　of　a　machine　tool.　In　this　research,　firstly,　an　experimental　set-up　was　designed　and　the　one-dimensional　steady　measurement　method　was　introduced　to　obtain　the　TCR　of　an　annular　contact　surface　with　various　tolerance　fits.　Secondly,　a　TCR　model　of　an　annular　contact　surface　for　the　spindle-bearing　joint　with　various　tolerance　fits　was　proposed.　The　TCR　model　was　obtained　by　the　constrained　thermal　resistance,　the　bulk　thermal　resistance　and　the　air　thermal　resistance.　Finally,　the　clearance,　transition　and　interference　fits　were　considered　as　three　typical　cases.　The　TCR　of　the　interference　fit　could　be　calculated　based　on　the　proposed　model　and　the　contact　load　derived　from　the　contact　formula.　However,　this　method　was　not　suitable　for　the　cases　of　clearance　and　transition　fits.　In　this　case,　a　hybrid　method　was　utilized　to　determine　the　corresponding　equivalent　contact　load.　The　results　demonstrated　that　the　proposed　model　could　be　utilized　to　predict　the　TCR　of　annular　surfaces　with　various　tolerance　fits.