To　theoretically　investigate　spacing　ring　accuracy　and　manufacturing　error　control,　the　impact　of　outer　spacing　ring　nonparallelism　on　the　tilt　of　single　row　bearing　is　discussed.　The　oblique　angle　of　outer　spacing　ring　end　face　is　taken　to　describe　its　nonparallelism,　the　influence　on　bearing　installation　position　is　then　analyzed.　Following　the　pseudo　statics　analysis　for　bearing,　the　computing　method　is　proposed　to　evaluate　the　dynamic　characteristics　of　high-speed　angular　contact　ball　bearing,　where　the　accuracy　of　outer　spacing　ring　and　bearing　heating　are　considered.　Taking　7014C　bearing　as　an　example,　the　calculated　maximum　contact　stress　increases　by　2.15%　as　axial　force　is　400　N　and　oblique　angle　of　outer　spacing　ring　0.0182,　and　increases　with　the　augmented　oblique　angle.　Outer　spacing　ring　nonparallelism　results　in　uneven　heating　at　each　ball　contact　area,　especially　under　radical　loads.　Most　of　machine　tool　spindles　work　under　radial　loads,　the　adverse　effects　of　outer　spacing　ring　parallelism　cannot　be　ignored.