Many　factors　affect　the　integrity　of　precision　ball　bearings.　In　this　study,　the　multi-dimensional　controllability　of　precision　ball　bearings　produced　in　different　company　brands　(bearing　A　and　bearing　B)　were　studied　and　compared.　The　geometric　errors　(flatness,　parallelism,　roundness　and　cylindricity　of　inner　and　outer　rings,　roundness,　groove　and　roughness　of　inner　and　outer　rings)　and　vibration　errors　of　bearings　were　analyzed.　Concurrently,　the　residual　stress,　residual　austenite　content,　element　content　ratio,　metamorphic　layer　and　temperature-vibration　displacement　coupling　test　were　also　analyzed.　Based　on　the　above　analysis　conclusion,　the　bearing　fatigue　life　test　was　carried　out　for　2　150　h.　The　reliability　of　the　conclusion　is　proved　again　as　follows.　When　the　residual　austenite　content　in　the　raceway　of　precision　ball　bearing　is　10%,　the　axial　residual　stress　is　877.4　MPa;　the　tangential　residual　stress　is　488.1　MPa;　the　carbon　content　is　6%;　the　test　temperature　of　bearing　is　the　lowest;　and　the　service　life　is　prolonged.